Vendor lock

vendor/sebastian/code-unit-reverse-lookup/.gitignore

@@ -0,0 +1,4 @@
+/.idea
+/composer.lock
+/vendor
+

vendor/sebastian/code-unit-reverse-lookup/.php_cs

@@ -0,0 +1,67 @@
+<?php
+$finder = Symfony\CS\Finder\DefaultFinder::create()
+    ->files()
+    ->in('src')
+    ->in('tests')
+    ->name('*.php');
+
+return Symfony\CS\Config\Config::create()
+    ->level(\Symfony\CS\FixerInterface::NONE_LEVEL)
+    ->fixers(
+        array(
+            'align_double_arrow',
+            'align_equals',
+            'braces',
+            'concat_with_spaces',
+            'duplicate_semicolon',
+            'elseif',
+            'empty_return',
+            'encoding',
+            'eof_ending',
+            'extra_empty_lines',
+            'function_call_space',
+            'function_declaration',
+            'indentation',
+            'join_function',
+            'line_after_namespace',
+            'linefeed',
+            'list_commas',
+            'lowercase_constants',
+            'lowercase_keywords',
+            'method_argument_space',
+            'multiple_use',
+            'namespace_no_leading_whitespace',
+            'no_blank_lines_after_class_opening',
+            'no_empty_lines_after_phpdocs',
+            'parenthesis',
+            'php_closing_tag',
+            'phpdoc_indent',
+            'phpdoc_no_access',
+            'phpdoc_no_empty_return',
+            'phpdoc_no_package',
+            'phpdoc_params',
+            'phpdoc_scalar',
+            'phpdoc_separation',
+            'phpdoc_to_comment',
+            'phpdoc_trim',
+            'phpdoc_types',
+            'phpdoc_var_without_name',
+            'remove_lines_between_uses',
+            'return',
+            'self_accessor',
+            'short_array_syntax',
+            'short_tag',
+            'single_line_after_imports',
+            'single_quote',
+            'spaces_before_semicolon',
+            'spaces_cast',
+            'ternary_spaces',
+            'trailing_spaces',
+            'trim_array_spaces',
+            'unused_use',
+            'visibility',
+            'whitespacy_lines'
+        )
+    )
+    ->finder($finder);
+

vendor/sebastian/code-unit-reverse-lookup/.travis.yml

@@ -0,0 +1,25 @@
+language: php
+
+php:
+  - 5.6
+  - 7.0
+  - 7.0snapshot
+  - 7.1
+  - 7.1snapshot
+  - master
+
+sudo: false
+
+before_install:
+  - composer self-update
+  - composer clear-cache
+
+install:
+  - travis_retry composer update --no-interaction --no-ansi --no-progress --no-suggest --optimize-autoloader --prefer-stable
+
+script:
+  - ./vendor/bin/phpunit
+
+notifications:
+  email: false
+

vendor/sebastian/code-unit-reverse-lookup/ChangeLog.md

@@ -0,0 +1,10 @@
+# Change Log
+
+All notable changes to `sebastianbergmann/code-unit-reverse-lookup` are documented in this file using the [Keep a CHANGELOG](http://keepachangelog.com/) principles.
+
+## 1.0.0 - 2016-02-13
+
+### Added
+
+* Initial release
+

vendor/sebastian/code-unit-reverse-lookup/LICENSE

@@ -0,0 +1,33 @@
+code-unit-reverse-lookup
+
+Copyright (c) 2016-2017, Sebastian Bergmann <sebastian@phpunit.de>.
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+
+ * Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+
+ * Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in
+   the documentation and/or other materials provided with the
+   distribution.
+
+ * Neither the name of Sebastian Bergmann nor the names of his
+   contributors may be used to endorse or promote products derived
+   from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.

vendor/sebastian/code-unit-reverse-lookup/README.md

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+# code-unit-reverse-lookup
+
+Looks up which function or method a line of code belongs to.
+
+## Installation
+
+You can add this library as a local, per-project dependency to your project using [Composer](https://getcomposer.org/):
+
+    composer require sebastian/code-unit-reverse-lookup
+
+If you only need this library during development, for instance to run your project's test suite, then you should add it as a development-time dependency:
+
+    composer require --dev sebastian/code-unit-reverse-lookup
+

vendor/sebastian/code-unit-reverse-lookup/build.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project name="code-unit-reverse-lookup" default="setup">
+    <target name="setup" depends="clean,composer"/>
+
+    <target name="clean" description="Cleanup build artifacts">
+        <delete dir="${basedir}/vendor"/>
+        <delete file="${basedir}/composer.lock"/>
+    </target>
+
+    <target name="composer" depends="clean" description="Install dependencies with Composer">
+        <exec executable="composer" taskname="composer">
+            <arg value="update"/>
+            <arg value="--no-interaction"/>
+            <arg value="--no-progress"/>
+            <arg value="--no-ansi"/>
+            <arg value="--no-suggest"/>
+            <arg value="--optimize-autoloader"/>
+            <arg value="--prefer-stable"/>
+        </exec>
+    </target>
+</project>
+

vendor/sebastian/code-unit-reverse-lookup/composer.json

@@ -0,0 +1,28 @@
+{
+    "name": "sebastian/code-unit-reverse-lookup",
+    "description": "Looks up which function or method a line of code belongs to",
+    "homepage": "https://github.com/sebastianbergmann/code-unit-reverse-lookup/",
+    "license": "BSD-3-Clause",
+    "authors": [
+        {
+            "name": "Sebastian Bergmann",
+            "email": "sebastian@phpunit.de"
+        }
+    ],
+    "require": {
+        "php": "^5.6 || ^7.0"
+    },
+    "require-dev": {
+        "phpunit/phpunit": "^5.7 || ^6.0"
+    },
+    "autoload": {
+        "classmap": [
+            "src/"
+        ]
+    },
+    "extra": {
+        "branch-alias": {
+            "dev-master": "1.0.x-dev"
+        }
+    }
+}

vendor/sebastian/code-unit-reverse-lookup/phpunit.xml

@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/5.4/phpunit.xsd"
+         bootstrap="vendor/autoload.php"
+         backupGlobals="false"
+         backupStaticAttributes="false"
+         beStrictAboutCoversAnnotation="true"
+         beStrictAboutOutputDuringTests="true"
+         beStrictAboutTestsThatDoNotTestAnything="true"
+         beStrictAboutTodoAnnotatedTests="true"
+         verbose="true">
+    <testsuite>
+        <directory suffix="Test.php">tests</directory>
+    </testsuite>
+
+    <filter>
+        <whitelist processUncoveredFilesFromWhitelist="true">
+            <directory suffix=".php">src</directory>
+        </whitelist>
+    </filter>
+</phpunit>

vendor/sebastian/code-unit-reverse-lookup/src/Wizard.php

@@ -0,0 +1,111 @@
+<?php
+/*
+ * This file is part of code-unit-reverse-lookup.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace SebastianBergmann\CodeUnitReverseLookup;
+
+/**
+ * @since Class available since Release 1.0.0
+ */
+class Wizard
+{
+    /**
+     * @var array
+     */
+    private $lookupTable = [];
+
+    /**
+     * @var array
+     */
+    private $processedClasses = [];
+
+    /**
+     * @var array
+     */
+    private $processedFunctions = [];
+
+    /**
+     * @param string $filename
+     * @param int    $lineNumber
+     *
+     * @return string
+     */
+    public function lookup($filename, $lineNumber)
+    {
+        if (!isset($this->lookupTable[$filename][$lineNumber])) {
+            $this->updateLookupTable();
+        }
+
+        if (isset($this->lookupTable[$filename][$lineNumber])) {
+            return $this->lookupTable[$filename][$lineNumber];
+        } else {
+            return $filename . ':' . $lineNumber;
+        }
+    }
+
+    private function updateLookupTable()
+    {
+        $this->processClassesAndTraits();
+        $this->processFunctions();
+    }
+
+    private function processClassesAndTraits()
+    {
+        foreach (array_merge(get_declared_classes(), get_declared_traits()) as $classOrTrait) {
+            if (isset($this->processedClasses[$classOrTrait])) {
+                continue;
+            }
+
+            $reflector = new \ReflectionClass($classOrTrait);
+
+            foreach ($reflector->getMethods() as $method) {
+                $this->processFunctionOrMethod($method);
+            }
+
+            $this->processedClasses[$classOrTrait] = true;
+        }
+    }
+
+    private function processFunctions()
+    {
+        foreach (get_defined_functions()['user'] as $function) {
+            if (isset($this->processedFunctions[$function])) {
+                continue;
+            }
+
+            $this->processFunctionOrMethod(new \ReflectionFunction($function));
+
+            $this->processedFunctions[$function] = true;
+        }
+    }
+
+    /**
+     * @param \ReflectionFunctionAbstract $functionOrMethod
+     */
+    private function processFunctionOrMethod(\ReflectionFunctionAbstract $functionOrMethod)
+    {
+        if ($functionOrMethod->isInternal()) {
+            return;
+        }
+
+        $name = $functionOrMethod->getName();
+
+        if ($functionOrMethod instanceof \ReflectionMethod) {
+            $name = $functionOrMethod->getDeclaringClass()->getName() . '::' . $name;
+        }
+
+        if (!isset($this->lookupTable[$functionOrMethod->getFileName()])) {
+            $this->lookupTable[$functionOrMethod->getFileName()] = [];
+        }
+
+        foreach (range($functionOrMethod->getStartLine(), $functionOrMethod->getEndLine()) as $line) {
+            $this->lookupTable[$functionOrMethod->getFileName()][$line] = $name;
+        }
+    }
+}

vendor/sebastian/code-unit-reverse-lookup/tests/WizardTest.php

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+<?php
+/*
+ * This file is part of code-unit-reverse-lookup.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace SebastianBergmann\CodeUnitReverseLookup;
+
+use PHPUnit\Framework\TestCase;
+
+/**
+ * @covers SebastianBergmann\CodeUnitReverseLookup\Wizard
+ */
+class WizardTest extends TestCase
+{
+    /**
+     * @var Wizard
+     */
+    private $wizard;
+
+    protected function setUp()
+    {
+        $this->wizard = new Wizard;
+    }
+
+    public function testMethodCanBeLookedUp()
+    {
+        $this->assertEquals(
+            __METHOD__,
+            $this->wizard->lookup(__FILE__, __LINE__)
+        );
+    }
+
+    public function testReturnsFilenameAndLineNumberAsStringWhenNotInCodeUnit()
+    {
+        $this->assertEquals(
+            'file.php:1',
+            $this->wizard->lookup('file.php', 1)
+        );
+    }
+}

vendor/sebastian/comparator/.github/stale.yml

@@ -0,0 +1,40 @@
+# Configuration for probot-stale - https://github.com/probot/stale
+
+# Number of days of inactivity before an Issue or Pull Request becomes stale
+daysUntilStale: 60
+
+# Number of days of inactivity before a stale Issue or Pull Request is closed.
+# Set to false to disable. If disabled, issues still need to be closed manually, but will remain marked as stale.
+daysUntilClose: 7
+
+# Issues or Pull Requests with these labels will never be considered stale. Set to `[]` to disable
+exemptLabels:
+  - enhancement
+
+# Set to true to ignore issues in a project (defaults to false)
+exemptProjects: false
+
+# Set to true to ignore issues in a milestone (defaults to false)
+exemptMilestones: false
+
+# Label to use when marking as stale
+staleLabel: stale
+
+# Comment to post when marking as stale. Set to `false` to disable
+markComment: >
+  This issue has been automatically marked as stale because it has not had activity within the last 60 days. It will be closed after 7 days if no further activity occurs. Thank you for your contributions.
+
+# Comment to post when removing the stale label.
+# unmarkComment: >
+#   Your comment here.
+
+# Comment to post when closing a stale Issue or Pull Request.
+closeComment: >
+  This issue has been automatically closed because it has not had activity since it was marked as stale. Thank you for your contributions.
+
+# Limit the number of actions per hour, from 1-30. Default is 30
+limitPerRun: 30
+
+# Limit to only `issues` or `pulls`
+only: issues
+

vendor/sebastian/comparator/.gitignore

@@ -0,0 +1,4 @@
+/.idea
+/.php_cs.cache
+/composer.lock
+/vendor

vendor/sebastian/comparator/.php_cs.dist

@@ -0,0 +1,189 @@
+<?php
+$header = <<<'EOF'
+This file is part of sebastian/comparator.
+
+(c) Sebastian Bergmann <sebastian@phpunit.de>
+
+For the full copyright and license information, please view the LICENSE
+file that was distributed with this source code.
+EOF;
+
+return PhpCsFixer\Config::create()
+    ->setRiskyAllowed(true)
+    ->setRules(
+        [
+            'align_multiline_comment' => true,
+            'array_indentation' => true,
+            'array_syntax' => ['syntax' => 'short'],
+            'binary_operator_spaces' => [
+                'operators' => [
+                    '=' => 'align',
+                    '=>' => 'align',
+                ],
+            ],
+            'blank_line_after_namespace' => true,
+            'blank_line_before_statement' => [
+                'statements' => [
+                    'break',
+                    'continue',
+                    'declare',
+                    'do',
+                    'for',
+                    'foreach',
+                    'if',
+                    'include',
+                    'include_once',
+                    'require',
+                    'require_once',
+                    'return',
+                    'switch',
+                    'throw',
+                    'try',
+                    'while',
+                    'yield',
+                ],
+            ],
+            'braces' => true,
+            'cast_spaces' => true,
+            'class_attributes_separation' => ['elements' => ['const', 'method', 'property']],
+            'combine_consecutive_issets' => true,
+            'combine_consecutive_unsets' => true,
+            'compact_nullable_typehint' => true,
+            'concat_space' => ['spacing' => 'one'],
+            'declare_equal_normalize' => ['space' => 'none'],
+            'dir_constant' => true,
+            'elseif' => true,
+            'encoding' => true,
+            'full_opening_tag' => true,
+            'function_declaration' => true,
+            'header_comment' => ['header' => $header, 'separate' => 'none'],
+            'indentation_type' => true,
+            'is_null' => true,
+            'line_ending' => true,
+            'list_syntax' => ['syntax' => 'short'],
+            'logical_operators' => true,
+            'lowercase_cast' => true,
+            'lowercase_constants' => true,
+            'lowercase_keywords' => true,
+            'lowercase_static_reference' => true,
+            'magic_constant_casing' => true,
+            'method_argument_space' => ['ensure_fully_multiline' => true],
+            'modernize_types_casting' => true,
+            'multiline_comment_opening_closing' => true,
+            'multiline_whitespace_before_semicolons' => true,
+            'native_constant_invocation' => true,
+            'native_function_casing' => true,
+            'native_function_invocation' => true,
+            'new_with_braces' => false,
+            'no_alias_functions' => true,
+            'no_alternative_syntax' => true,
+            'no_blank_lines_after_class_opening' => true,
+            'no_blank_lines_after_phpdoc' => true,
+            'no_blank_lines_before_namespace' => true,
+            'no_closing_tag' => true,
+            'no_empty_comment' => true,
+            'no_empty_phpdoc' => true,
+            'no_empty_statement' => true,
+            'no_extra_blank_lines' => true,
+            'no_homoglyph_names' => true,
+            'no_leading_import_slash' => true,
+            'no_leading_namespace_whitespace' => true,
+            'no_mixed_echo_print' => ['use' => 'print'],
+            'no_multiline_whitespace_around_double_arrow' => true,
+            'no_null_property_initialization' => true,
+            'no_php4_constructor' => true,
+            'no_short_bool_cast' => true,
+            'no_short_echo_tag' => true,
+            'no_singleline_whitespace_before_semicolons' => true,
+            'no_spaces_after_function_name' => true,
+            'no_spaces_inside_parenthesis' => true,
+            'no_superfluous_elseif' => true,
+            'no_superfluous_phpdoc_tags' => true,
+            'no_trailing_comma_in_list_call' => true,
+            'no_trailing_comma_in_singleline_array' => true,
+            'no_trailing_whitespace' => true,
+            'no_trailing_whitespace_in_comment' => true,
+            'no_unneeded_control_parentheses' => true,
+            'no_unneeded_curly_braces' => true,
+            'no_unneeded_final_method' => true,
+            'no_unreachable_default_argument_value' => true,
+            'no_unset_on_property' => true,
+            'no_unused_imports' => true,
+            'no_useless_else' => true,
+            'no_useless_return' => true,
+            'no_whitespace_before_comma_in_array' => true,
+            'no_whitespace_in_blank_line' => true,
+            'non_printable_character' => true,
+            'normalize_index_brace' => true,
+            'object_operator_without_whitespace' => true,
+            'ordered_class_elements' => [
+                'order' => [
+                    'use_trait',
+                    'constant_public',
+                    'constant_protected',
+                    'constant_private',
+                    'property_public_static',
+                    'property_protected_static',
+                    'property_private_static',
+                    'property_public',
+                    'property_protected',
+                    'property_private',
+                    'method_public_static',
+                    'construct',
+                    'destruct',
+                    'magic',
+                    'phpunit',
+                    'method_public',
+                    'method_protected',
+                    'method_private',
+                    'method_protected_static',
+                    'method_private_static',
+                ],
+            ],
+            'ordered_imports' => true,
+            'phpdoc_add_missing_param_annotation' => true,
+            'phpdoc_align' => true,
+            'phpdoc_annotation_without_dot' => true,
+            'phpdoc_indent' => true,
+            'phpdoc_no_access' => true,
+            'phpdoc_no_empty_return' => true,
+            'phpdoc_no_package' => true,
+            'phpdoc_order' => true,
+            'phpdoc_return_self_reference' => true,
+            'phpdoc_scalar' => true,
+            'phpdoc_separation' => true,
+            'phpdoc_single_line_var_spacing' => true,
+            'phpdoc_to_comment' => true,
+            'phpdoc_trim' => true,
+            'phpdoc_trim_consecutive_blank_line_separation' => true,
+            'phpdoc_types' => true,
+            'phpdoc_types_order' => true,
+            'phpdoc_var_without_name' => true,
+            'pow_to_exponentiation' => true,
+            'protected_to_private' => true,
+            'return_assignment' => true,
+            'return_type_declaration' => ['space_before' => 'none'],
+            'self_accessor' => true,
+            'semicolon_after_instruction' => true,
+            'set_type_to_cast' => true,
+            'short_scalar_cast' => true,
+            'simplified_null_return' => true,
+            'single_blank_line_at_eof' => true,
+            'single_import_per_statement' => true,
+            'single_line_after_imports' => true,
+            'single_quote' => true,
+            'standardize_not_equals' => true,
+            'ternary_to_null_coalescing' => true,
+            'trim_array_spaces' => true,
+            'unary_operator_spaces' => true,
+            'visibility_required' => true,
+            //'void_return' => true,
+            'whitespace_after_comma_in_array' => true,
+        ]
+    )
+    ->setFinder(
+        PhpCsFixer\Finder::create()
+        ->files()
+        ->in(__DIR__ . '/src')
+        ->in(__DIR__ . '/tests')
+    );

vendor/sebastian/comparator/.travis.yml

@@ -0,0 +1,33 @@
+language: php
+
+sudo: false
+
+php:
+  - 7.1
+  - 7.2
+  - master
+
+env:
+  matrix:
+    - DEPENDENCIES="high"
+    - DEPENDENCIES="low"
+  global:
+    - DEFAULT_COMPOSER_FLAGS="--no-interaction --no-ansi --no-progress --no-suggest"
+
+before_install:
+  - composer self-update
+  - composer clear-cache
+
+install:
+  - if [[ "$DEPENDENCIES" = 'high' ]]; then travis_retry composer update $DEFAULT_COMPOSER_FLAGS; fi
+  - if [[ "$DEPENDENCIES" = 'low' ]]; then travis_retry composer update $DEFAULT_COMPOSER_FLAGS --prefer-lowest; fi
+
+script:
+  - ./vendor/bin/phpunit --coverage-clover=coverage.xml
+
+after_success:
+  - bash <(curl -s https://codecov.io/bash)
+
+notifications:
+  email: false
+

vendor/sebastian/comparator/ChangeLog.md

@@ -0,0 +1,59 @@
+# ChangeLog
+
+All notable changes are documented in this file using the [Keep a CHANGELOG](http://keepachangelog.com/) principles.
+
+## [3.0.2] - 2018-07-12
+
+### Changed
+
+* By default, `MockObjectComparator` is now tried before all other (default) comparators
+
+## [3.0.1] - 2018-06-14
+
+### Fixed
+
+* Fixed [#53](https://github.com/sebastianbergmann/comparator/pull/53): `DOMNodeComparator` ignores `$ignoreCase` parameter
+* Fixed [#58](https://github.com/sebastianbergmann/comparator/pull/58): `ScalarComparator` does not handle extremely ugly string comparison edge cases
+
+## [3.0.0] - 2018-04-18
+
+### Fixed
+
+* Fixed [#48](https://github.com/sebastianbergmann/comparator/issues/48): `DateTimeComparator` does not support fractional second deltas
+
+### Removed
+
+* Removed support for PHP 7.0
+
+## [2.1.3] - 2018-02-01
+
+### Changed
+
+* This component is now compatible with version 3 of `sebastian/diff`
+
+## [2.1.2] - 2018-01-12
+
+### Fixed
+
+* Fix comparison of `DateTimeImmutable` objects
+
+## [2.1.1] - 2017-12-22
+
+### Fixed
+
+* Fixed [phpunit/#2923](https://github.com/sebastianbergmann/phpunit/issues/2923): Unexpected failed date matching
+
+## [2.1.0] - 2017-11-03
+
+### Added
+
+* Added `SebastianBergmann\Comparator\Factory::reset()` to unregister all non-default comparators
+* Added support for `phpunit/phpunit-mock-objects` version `^5.0`
+
+[3.0.2]: https://github.com/sebastianbergmann/comparator/compare/3.0.1...3.0.2
+[3.0.1]: https://github.com/sebastianbergmann/comparator/compare/3.0.0...3.0.1
+[3.0.0]: https://github.com/sebastianbergmann/comparator/compare/2.1.3...3.0.0
+[2.1.3]: https://github.com/sebastianbergmann/comparator/compare/2.1.2...2.1.3
+[2.1.2]: https://github.com/sebastianbergmann/comparator/compare/2.1.1...2.1.2
+[2.1.1]: https://github.com/sebastianbergmann/comparator/compare/2.1.0...2.1.1
+[2.1.0]: https://github.com/sebastianbergmann/comparator/compare/2.0.2...2.1.0

vendor/sebastian/comparator/LICENSE

@@ -0,0 +1,33 @@
+Comparator
+
+Copyright (c) 2002-2018, Sebastian Bergmann <sebastian@phpunit.de>.
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+
+ * Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+
+ * Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in
+   the documentation and/or other materials provided with the
+   distribution.
+
+ * Neither the name of Sebastian Bergmann nor the names of his
+   contributors may be used to endorse or promote products derived
+   from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.

vendor/sebastian/comparator/README.md

@@ -0,0 +1,37 @@
+[![Build Status](https://travis-ci.org/sebastianbergmann/comparator.svg?branch=master)](https://travis-ci.org/sebastianbergmann/comparator)
+
+# Comparator
+
+This component provides the functionality to compare PHP values for equality.
+
+## Installation
+
+You can add this library as a local, per-project dependency to your project using [Composer](https://getcomposer.org/):
+
+    composer require sebastian/comparator
+
+If you only need this library during development, for instance to run your project's test suite, then you should add it as a development-time dependency:
+
+    composer require --dev sebastian/comparator
+
+## Usage
+
+```php
+<?php
+use SebastianBergmann\Comparator\Factory;
+use SebastianBergmann\Comparator\ComparisonFailure;
+
+$date1 = new DateTime('2013-03-29 04:13:35', new DateTimeZone('America/New_York'));
+$date2 = new DateTime('2013-03-29 03:13:35', new DateTimeZone('America/Chicago'));
+
+$factory = new Factory;
+$comparator = $factory->getComparatorFor($date1, $date2);
+
+try {
+    $comparator->assertEquals($date1, $date2);
+    print "Dates match";
+} catch (ComparisonFailure $failure) {
+    print "Dates don't match";
+}
+```
+

vendor/sebastian/comparator/build.xml

@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project name="comparator" default="setup">
+    <target name="setup" depends="clean,composer"/>
+
+    <target name="clean" description="Cleanup build artifacts">
+        <delete dir="${basedir}/vendor"/>
+        <delete file="${basedir}/composer.lock"/>
+    </target>
+
+    <target name="composer" depends="clean" description="Install dependencies with Composer">
+        <exec executable="composer" taskname="composer">
+            <env key="COMPOSER_DISABLE_XDEBUG_WARN" value="1"/>
+            <arg value="update"/>
+            <arg value="--no-interaction"/>
+            <arg value="--no-progress"/>
+            <arg value="--no-ansi"/>
+            <arg value="--no-suggest"/>
+        </exec>
+    </target>
+</project>
+

vendor/sebastian/comparator/composer.json

@@ -0,0 +1,54 @@
+{
+    "name": "sebastian/comparator",
+    "description": "Provides the functionality to compare PHP values for equality",
+    "keywords": ["comparator","compare","equality"],
+    "homepage": "https://github.com/sebastianbergmann/comparator",
+    "license": "BSD-3-Clause",
+    "authors": [
+        {
+            "name": "Sebastian Bergmann",
+            "email": "sebastian@phpunit.de"
+        },
+        {
+            "name": "Jeff Welch",
+            "email": "whatthejeff@gmail.com"
+        },
+        {
+            "name": "Volker Dusch",
+            "email": "github@wallbash.com"
+        },
+        {
+            "name": "Bernhard Schussek",
+            "email": "bschussek@2bepublished.at"
+        }
+    ],
+    "prefer-stable": true,
+    "require": {
+        "php": "^7.1",
+        "sebastian/diff": "^3.0",
+        "sebastian/exporter": "^3.1"
+    },
+    "require-dev": {
+        "phpunit/phpunit": "^7.1"
+    },
+    "config": {
+        "optimize-autoloader": true,
+        "sort-packages": true
+    },
+    "autoload": {
+        "classmap": [
+            "src/"
+        ]
+    },
+    "autoload-dev": {
+        "classmap": [
+            "tests/_fixture"
+        ]
+    },
+    "extra": {
+        "branch-alias": {
+            "dev-master": "3.0-dev"
+        }
+    }
+}
+

vendor/sebastian/comparator/phpunit.xml

@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/7.2/phpunit.xsd"
+         bootstrap="vendor/autoload.php"
+         forceCoversAnnotation="true"
+         beStrictAboutCoversAnnotation="true"
+         beStrictAboutOutputDuringTests="true"
+         beStrictAboutTodoAnnotatedTests="true"
+         verbose="true">
+    <testsuites>
+        <testsuite name="default">
+            <directory suffix="Test.php">tests</directory>
+        </testsuite>
+    </testsuites>
+
+    <filter>
+        <whitelist processUncoveredFilesFromWhitelist="true">
+            <directory suffix=".php">src</directory>
+        </whitelist>
+    </filter>
+</phpunit>

vendor/sebastian/comparator/src/ArrayComparator.php

@@ -0,0 +1,130 @@
+<?php
+/*
+ * This file is part of sebastian/comparator.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace SebastianBergmann\Comparator;
+
+/**
+ * Compares arrays for equality.
+ */
+class ArrayComparator extends Comparator
+{
+    /**
+     * Returns whether the comparator can compare two values.
+     *
+     * @param mixed $expected The first value to compare
+     * @param mixed $actual   The second value to compare
+     *
+     * @return bool
+     */
+    public function accepts($expected, $actual)
+    {
+        return \is_array($expected) && \is_array($actual);
+    }
+
+    /**
+     * Asserts that two values are equal.
+     *
+     * @param mixed $expected     First value to compare
+     * @param mixed $actual       Second value to compare
+     * @param float $delta        Allowed numerical distance between two values to consider them equal
+     * @param bool  $canonicalize Arrays are sorted before comparison when set to true
+     * @param bool  $ignoreCase   Case is ignored when set to true
+     * @param array $processed    List of already processed elements (used to prevent infinite recursion)
+     *
+     * @throws ComparisonFailure
+     */
+    public function assertEquals($expected, $actual, $delta = 0.0, $canonicalize = false, $ignoreCase = false, array &$processed = [])
+    {
+        if ($canonicalize) {
+            \sort($expected);
+            \sort($actual);
+        }
+
+        $remaining        = $actual;
+        $actualAsString   = "Array (\n";
+        $expectedAsString = "Array (\n";
+        $equal            = true;
+
+        foreach ($expected as $key => $value) {
+            unset($remaining[$key]);
+
+            if (!\array_key_exists($key, $actual)) {
+                $expectedAsString .= \sprintf(
+                    "    %s => %s\n",
+                    $this->exporter->export($key),
+                    $this->exporter->shortenedExport($value)
+                );
+
+                $equal = false;
+
+                continue;
+            }
+
+            try {
+                $comparator = $this->factory->getComparatorFor($value, $actual[$key]);
+                $comparator->assertEquals($value, $actual[$key], $delta, $canonicalize, $ignoreCase, $processed);
+
+                $expectedAsString .= \sprintf(
+                    "    %s => %s\n",
+                    $this->exporter->export($key),
+                    $this->exporter->shortenedExport($value)
+                );
+
+                $actualAsString .= \sprintf(
+                    "    %s => %s\n",
+                    $this->exporter->export($key),
+                    $this->exporter->shortenedExport($actual[$key])
+                );
+            } catch (ComparisonFailure $e) {
+                $expectedAsString .= \sprintf(
+                    "    %s => %s\n",
+                    $this->exporter->export($key),
+                    $e->getExpectedAsString() ? $this->indent($e->getExpectedAsString()) : $this->exporter->shortenedExport($e->getExpected())
+                );
+
+                $actualAsString .= \sprintf(
+                    "    %s => %s\n",
+                    $this->exporter->export($key),
+                    $e->getActualAsString() ? $this->indent($e->getActualAsString()) : $this->exporter->shortenedExport($e->getActual())
+                );
+
+                $equal = false;
+            }
+        }
+
+        foreach ($remaining as $key => $value) {
+            $actualAsString .= \sprintf(
+                "    %s => %s\n",
+                $this->exporter->export($key),
+                $this->exporter->shortenedExport($value)
+            );
+
+            $equal = false;
+        }
+
+        $expectedAsString .= ')';
+        $actualAsString .= ')';
+
+        if (!$equal) {
+            throw new ComparisonFailure(
+                $expected,
+                $actual,
+                $expectedAsString,
+                $actualAsString,
+                false,
+                'Failed asserting that two arrays are equal.'
+            );
+        }
+    }
+
+    protected function indent($lines)
+    {
+        return \trim(\str_replace("\n", "\n    ", $lines));
+    }
+}

vendor/sebastian/comparator/src/Comparator.php

@@ -0,0 +1,61 @@
+<?php
+/*
+ * This file is part of sebastian/comparator.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace SebastianBergmann\Comparator;
+
+use SebastianBergmann\Exporter\Exporter;
+
+/**
+ * Abstract base class for comparators which compare values for equality.
+ */
+abstract class Comparator
+{
+    /**
+     * @var Factory
+     */
+    protected $factory;
+
+    /**
+     * @var Exporter
+     */
+    protected $exporter;
+
+    public function __construct()
+    {
+        $this->exporter = new Exporter;
+    }
+
+    public function setFactory(Factory $factory)
+    {
+        $this->factory = $factory;
+    }
+
+    /**
+     * Returns whether the comparator can compare two values.
+     *
+     * @param mixed $expected The first value to compare
+     * @param mixed $actual   The second value to compare
+     *
+     * @return bool
+     */
+    abstract public function accepts($expected, $actual);
+
+    /**
+     * Asserts that two values are equal.
+     *
+     * @param mixed $expected     First value to compare
+     * @param mixed $actual       Second value to compare
+     * @param float $delta        Allowed numerical distance between two values to consider them equal
+     * @param bool  $canonicalize Arrays are sorted before comparison when set to true
+     * @param bool  $ignoreCase   Case is ignored when set to true
+     *
+     * @throws ComparisonFailure
+     */
+    abstract public function assertEquals($expected, $actual, $delta = 0.0, $canonicalize = false, $ignoreCase = false);
+}

vendor/sebastian/comparator/src/ComparisonFailure.php

@@ -0,0 +1,128 @@
+<?php
+/*
+ * This file is part of sebastian/comparator.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace SebastianBergmann\Comparator;
+
+use SebastianBergmann\Diff\Differ;
+use SebastianBergmann\Diff\Output\UnifiedDiffOutputBuilder;
+
+/**
+ * Thrown when an assertion for string equality failed.
+ */
+class ComparisonFailure extends \RuntimeException
+{
+    /**
+     * Expected value of the retrieval which does not match $actual.
+     *
+     * @var mixed
+     */
+    protected $expected;
+
+    /**
+     * Actually retrieved value which does not match $expected.
+     *
+     * @var mixed
+     */
+    protected $actual;
+
+    /**
+     * The string representation of the expected value
+     *
+     * @var string
+     */
+    protected $expectedAsString;
+
+    /**
+     * The string representation of the actual value
+     *
+     * @var string
+     */
+    protected $actualAsString;
+
+    /**
+     * @var bool
+     */
+    protected $identical;
+
+    /**
+     * Optional message which is placed in front of the first line
+     * returned by toString().
+     *
+     * @var string
+     */
+    protected $message;
+
+    /**
+     * Initialises with the expected value and the actual value.
+     *
+     * @param mixed  $expected         expected value retrieved
+     * @param mixed  $actual           actual value retrieved
+     * @param string $expectedAsString
+     * @param string $actualAsString
+     * @param bool   $identical
+     * @param string $message          a string which is prefixed on all returned lines
+     *                                 in the difference output
+     */
+    public function __construct($expected, $actual, $expectedAsString, $actualAsString, $identical = false, $message = '')
+    {
+        $this->expected         = $expected;
+        $this->actual           = $actual;
+        $this->expectedAsString = $expectedAsString;
+        $this->actualAsString   = $actualAsString;
+        $this->message          = $message;
+    }
+
+    public function getActual()
+    {
+        return $this->actual;
+    }
+
+    public function getExpected()
+    {
+        return $this->expected;
+    }
+
+    /**
+     * @return string
+     */
+    public function getActualAsString()
+    {
+        return $this->actualAsString;
+    }
+
+    /**
+     * @return string
+     */
+    public function getExpectedAsString()
+    {
+        return $this->expectedAsString;
+    }
+
+    /**
+     * @return string
+     */
+    public function getDiff()
+    {
+        if (!$this->actualAsString && !$this->expectedAsString) {
+            return '';
+        }
+
+        $differ = new Differ(new UnifiedDiffOutputBuilder("\n--- Expected\n+++ Actual\n"));
+
+        return $differ->diff($this->expectedAsString, $this->actualAsString);
+    }
+
+    /**
+     * @return string
+     */
+    public function toString()
+    {
+        return $this->message . $this->getDiff();
+    }
+}

vendor/sebastian/comparator/src/DOMNodeComparator.php

@@ -0,0 +1,86 @@
+<?php
+/*
+ * This file is part of sebastian/comparator.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace SebastianBergmann\Comparator;
+
+use DOMDocument;
+use DOMNode;
+
+/**
+ * Compares DOMNode instances for equality.
+ */
+class DOMNodeComparator extends ObjectComparator
+{
+    /**
+     * Returns whether the comparator can compare two values.
+     *
+     * @param mixed $expected The first value to compare
+     * @param mixed $actual   The second value to compare
+     *
+     * @return bool
+     */
+    public function accepts($expected, $actual)
+    {
+        return $expected instanceof DOMNode && $actual instanceof DOMNode;
+    }
+
+    /**
+     * Asserts that two values are equal.
+     *
+     * @param mixed $expected     First value to compare
+     * @param mixed $actual       Second value to compare
+     * @param float $delta        Allowed numerical distance between two values to consider them equal
+     * @param bool  $canonicalize Arrays are sorted before comparison when set to true
+     * @param bool  $ignoreCase   Case is ignored when set to true
+     * @param array $processed    List of already processed elements (used to prevent infinite recursion)
+     *
+     * @throws ComparisonFailure
+     */
+    public function assertEquals($expected, $actual, $delta = 0.0, $canonicalize = false, $ignoreCase = false, array &$processed = [])
+    {
+        $expectedAsString = $this->nodeToText($expected, true, $ignoreCase);
+        $actualAsString   = $this->nodeToText($actual, true, $ignoreCase);
+
+        if ($expectedAsString !== $actualAsString) {
+            $type = $expected instanceof DOMDocument ? 'documents' : 'nodes';
+
+            throw new ComparisonFailure(
+                $expected,
+                $actual,
+                $expectedAsString,
+                $actualAsString,
+                false,
+                \sprintf("Failed asserting that two DOM %s are equal.\n", $type)
+            );
+        }
+    }
+
+    /**
+     * Returns the normalized, whitespace-cleaned, and indented textual
+     * representation of a DOMNode.
+     */
+    private function nodeToText(DOMNode $node, bool $canonicalize, bool $ignoreCase): string
+    {
+        if ($canonicalize) {
+            $document = new DOMDocument;
+            @$document->loadXML($node->C14N());
+
+            $node = $document;
+        }
+
+        $document = $node instanceof DOMDocument ? $node : $node->ownerDocument;
+
+        $document->formatOutput = true;
+        $document->normalizeDocument();
+
+        $text = $node instanceof DOMDocument ? $node->saveXML() : $document->saveXML($node);
+
+        return $ignoreCase ? \strtolower($text) : $text;
+    }
+}

vendor/sebastian/comparator/src/DateTimeComparator.php

@@ -0,0 +1,86 @@
+<?php
+/*
+ * This file is part of sebastian/comparator.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace SebastianBergmann\Comparator;
+
+/**
+ * Compares DateTimeInterface instances for equality.
+ */
+class DateTimeComparator extends ObjectComparator
+{
+    /**
+     * Returns whether the comparator can compare two values.
+     *
+     * @param mixed $expected The first value to compare
+     * @param mixed $actual   The second value to compare
+     *
+     * @return bool
+     */
+    public function accepts($expected, $actual)
+    {
+        return ($expected instanceof \DateTime || $expected instanceof \DateTimeInterface) &&
+               ($actual instanceof \DateTime || $actual instanceof \DateTimeInterface);
+    }
+
+    /**
+     * Asserts that two values are equal.
+     *
+     * @param mixed $expected     First value to compare
+     * @param mixed $actual       Second value to compare
+     * @param float $delta        Allowed numerical distance between two values to consider them equal
+     * @param bool  $canonicalize Arrays are sorted before comparison when set to true
+     * @param bool  $ignoreCase   Case is ignored when set to true
+     * @param array $processed    List of already processed elements (used to prevent infinite recursion)
+     *
+     * @throws \Exception
+     * @throws ComparisonFailure
+     */
+    public function assertEquals($expected, $actual, $delta = 0.0, $canonicalize = false, $ignoreCase = false, array &$processed = [])
+    {
+        /** @var \DateTimeInterface $expected */
+        /** @var \DateTimeInterface $actual */
+        $absDelta = \abs($delta);
+        $delta    = new \DateInterval(\sprintf('PT%dS', $absDelta));
+        $delta->f = $absDelta - \floor($absDelta);
+
+        $actualClone = (clone $actual)
+            ->setTimezone(new \DateTimeZone('UTC'));
+
+        $expectedLower = (clone $expected)
+            ->setTimezone(new \DateTimeZone('UTC'))
+            ->sub($delta);
+
+        $expectedUpper = (clone $expected)
+            ->setTimezone(new \DateTimeZone('UTC'))
+            ->add($delta);
+
+        if ($actualClone < $expectedLower || $actualClone > $expectedUpper) {
+            throw new ComparisonFailure(
+                $expected,
+                $actual,
+                $this->dateTimeToString($expected),
+                $this->dateTimeToString($actual),
+                false,
+                'Failed asserting that two DateTime objects are equal.'
+            );
+        }
+    }
+
+    /**
+     * Returns an ISO 8601 formatted string representation of a datetime or
+     * 'Invalid DateTimeInterface object' if the provided DateTimeInterface was not properly
+     * initialized.
+     */
+    private function dateTimeToString(\DateTimeInterface $datetime): string
+    {
+        $string = $datetime->format('Y-m-d\TH:i:s.uO');
+
+        return $string ?: 'Invalid DateTimeInterface object';
+    }
+}

vendor/sebastian/comparator/src/DoubleComparator.php

@@ -0,0 +1,56 @@
+<?php
+/*
+ * This file is part of sebastian/comparator.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace SebastianBergmann\Comparator;
+
+/**
+ * Compares doubles for equality.
+ */
+class DoubleComparator extends NumericComparator
+{
+    /**
+     * Smallest value available in PHP.
+     *
+     * @var float
+     */
+    const EPSILON = 0.0000000001;
+
+    /**
+     * Returns whether the comparator can compare two values.
+     *
+     * @param mixed $expected The first value to compare
+     * @param mixed $actual   The second value to compare
+     *
+     * @return bool
+     */
+    public function accepts($expected, $actual)
+    {
+        return (\is_float($expected) || \is_float($actual)) && \is_numeric($expected) && \is_numeric($actual);
+    }
+
+    /**
+     * Asserts that two values are equal.
+     *
+     * @param mixed $expected     First value to compare
+     * @param mixed $actual       Second value to compare
+     * @param float $delta        Allowed numerical distance between two values to consider them equal
+     * @param bool  $canonicalize Arrays are sorted before comparison when set to true
+     * @param bool  $ignoreCase   Case is ignored when set to true
+     *
+     * @throws ComparisonFailure
+     */
+    public function assertEquals($expected, $actual, $delta = 0.0, $canonicalize = false, $ignoreCase = false)
+    {
+        if ($delta == 0) {
+            $delta = self::EPSILON;
+        }
+
+        parent::assertEquals($expected, $actual, $delta, $canonicalize, $ignoreCase);
+    }
+}

vendor/sebastian/comparator/src/ExceptionComparator.php

@@ -0,0 +1,52 @@
+<?php
+/*
+ * This file is part of sebastian/comparator.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace SebastianBergmann\Comparator;
+
+/**
+ * Compares Exception instances for equality.
+ */
+class ExceptionComparator extends ObjectComparator
+{
+    /**
+     * Returns whether the comparator can compare two values.
+     *
+     * @param mixed $expected The first value to compare
+     * @param mixed $actual   The second value to compare
+     *
+     * @return bool
+     */
+    public function accepts($expected, $actual)
+    {
+        return $expected instanceof \Exception && $actual instanceof \Exception;
+    }
+
+    /**
+     * Converts an object to an array containing all of its private, protected
+     * and public properties.
+     *
+     * @param object $object
+     *
+     * @return array
+     */
+    protected function toArray($object)
+    {
+        $array = parent::toArray($object);
+
+        unset(
+            $array['file'],
+            $array['line'],
+            $array['trace'],
+            $array['string'],
+            $array['xdebug_message']
+        );
+
+        return $array;
+    }
+}

vendor/sebastian/comparator/src/Factory.php

@@ -0,0 +1,138 @@
+<?php
+/*
+ * This file is part of sebastian/comparator.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace SebastianBergmann\Comparator;
+
+/**
+ * Factory for comparators which compare values for equality.
+ */
+class Factory
+{
+    /**
+     * @var Factory
+     */
+    private static $instance;
+
+    /**
+     * @var Comparator[]
+     */
+    private $customComparators = [];
+
+    /**
+     * @var Comparator[]
+     */
+    private $defaultComparators = [];
+
+    /**
+     * @return Factory
+     */
+    public static function getInstance()
+    {
+        if (self::$instance === null) {
+            self::$instance = new self;
+        }
+
+        return self::$instance;
+    }
+
+    /**
+     * Constructs a new factory.
+     */
+    public function __construct()
+    {
+        $this->registerDefaultComparators();
+    }
+
+    /**
+     * Returns the correct comparator for comparing two values.
+     *
+     * @param mixed $expected The first value to compare
+     * @param mixed $actual   The second value to compare
+     *
+     * @return Comparator
+     */
+    public function getComparatorFor($expected, $actual)
+    {
+        foreach ($this->customComparators as $comparator) {
+            if ($comparator->accepts($expected, $actual)) {
+                return $comparator;
+            }
+        }
+
+        foreach ($this->defaultComparators as $comparator) {
+            if ($comparator->accepts($expected, $actual)) {
+                return $comparator;
+            }
+        }
+    }
+
+    /**
+     * Registers a new comparator.
+     *
+     * This comparator will be returned by getComparatorFor() if its accept() method
+     * returns TRUE for the compared values. It has higher priority than the
+     * existing comparators, meaning that its accept() method will be invoked
+     * before those of the other comparators.
+     *
+     * @param Comparator $comparator The comparator to be registered
+     */
+    public function register(Comparator $comparator)
+    {
+        \array_unshift($this->customComparators, $comparator);
+
+        $comparator->setFactory($this);
+    }
+
+    /**
+     * Unregisters a comparator.
+     *
+     * This comparator will no longer be considered by getComparatorFor().
+     *
+     * @param Comparator $comparator The comparator to be unregistered
+     */
+    public function unregister(Comparator $comparator)
+    {
+        foreach ($this->customComparators as $key => $_comparator) {
+            if ($comparator === $_comparator) {
+                unset($this->customComparators[$key]);
+            }
+        }
+    }
+
+    /**
+     * Unregisters all non-default comparators.
+     */
+    public function reset()
+    {
+        $this->customComparators = [];
+    }
+
+    private function registerDefaultComparators()
+    {
+        $this->registerDefaultComparator(new MockObjectComparator);
+        $this->registerDefaultComparator(new DateTimeComparator);
+        $this->registerDefaultComparator(new DOMNodeComparator);
+        $this->registerDefaultComparator(new SplObjectStorageComparator);
+        $this->registerDefaultComparator(new ExceptionComparator);
+        $this->registerDefaultComparator(new ObjectComparator);
+        $this->registerDefaultComparator(new ResourceComparator);
+        $this->registerDefaultComparator(new ArrayComparator);
+        $this->registerDefaultComparator(new DoubleComparator);
+        $this->registerDefaultComparator(new NumericComparator);
+        $this->registerDefaultComparator(new ScalarComparator);
+        $this->registerDefaultComparator(new TypeComparator);
+    }
+
+    private function registerDefaultComparator(Comparator $comparator)
+    {
+        $this->defaultComparators[] = $comparator;
+
+        $comparator->setFactory($this);
+    }
+}

vendor/sebastian/comparator/src/MockObjectComparator.php

@@ -0,0 +1,47 @@
+<?php
+/*
+ * This file is part of sebastian/comparator.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace SebastianBergmann\Comparator;
+
+/**
+ * Compares PHPUnit_Framework_MockObject_MockObject instances for equality.
+ */
+class MockObjectComparator extends ObjectComparator
+{
+    /**
+     * Returns whether the comparator can compare two values.
+     *
+     * @param mixed $expected The first value to compare
+     * @param mixed $actual   The second value to compare
+     *
+     * @return bool
+     */
+    public function accepts($expected, $actual)
+    {
+        return ($expected instanceof \PHPUnit_Framework_MockObject_MockObject || $expected instanceof \PHPUnit\Framework\MockObject\MockObject) &&
+               ($actual instanceof \PHPUnit_Framework_MockObject_MockObject || $actual instanceof \PHPUnit\Framework\MockObject\MockObject);
+    }
+
+    /**
+     * Converts an object to an array containing all of its private, protected
+     * and public properties.
+     *
+     * @param object $object
+     *
+     * @return array
+     */
+    protected function toArray($object)
+    {
+        $array = parent::toArray($object);
+
+        unset($array['__phpunit_invocationMocker']);
+
+        return $array;
+    }
+}

vendor/sebastian/comparator/src/NumericComparator.php

@@ -0,0 +1,68 @@
+<?php
+/*
+ * This file is part of sebastian/comparator.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace SebastianBergmann\Comparator;
+
+/**
+ * Compares numerical values for equality.
+ */
+class NumericComparator extends ScalarComparator
+{
+    /**
+     * Returns whether the comparator can compare two values.
+     *
+     * @param mixed $expected The first value to compare
+     * @param mixed $actual   The second value to compare
+     *
+     * @return bool
+     */
+    public function accepts($expected, $actual)
+    {
+        // all numerical values, but not if one of them is a double
+        // or both of them are strings
+        return \is_numeric($expected) && \is_numeric($actual) &&
+               !(\is_float($expected) || \is_float($actual)) &&
+               !(\is_string($expected) && \is_string($actual));
+    }
+
+    /**
+     * Asserts that two values are equal.
+     *
+     * @param mixed $expected     First value to compare
+     * @param mixed $actual       Second value to compare
+     * @param float $delta        Allowed numerical distance between two values to consider them equal
+     * @param bool  $canonicalize Arrays are sorted before comparison when set to true
+     * @param bool  $ignoreCase   Case is ignored when set to true
+     *
+     * @throws ComparisonFailure
+     */
+    public function assertEquals($expected, $actual, $delta = 0.0, $canonicalize = false, $ignoreCase = false)
+    {
+        if (\is_infinite($actual) && \is_infinite($expected)) {
+            return; // @codeCoverageIgnore
+        }
+
+        if ((\is_infinite($actual) xor \is_infinite($expected)) ||
+            (\is_nan($actual) || \is_nan($expected)) ||
+            \abs($actual - $expected) > $delta) {
+            throw new ComparisonFailure(
+                $expected,
+                $actual,
+                '',
+                '',
+                false,
+                \sprintf(
+                    'Failed asserting that %s matches expected %s.',
+                    $this->exporter->export($actual),
+                    $this->exporter->export($expected)
+                )
+            );
+        }
+    }
+}

vendor/sebastian/comparator/src/ObjectComparator.php

@@ -0,0 +1,106 @@
+<?php
+/*
+ * This file is part of sebastian/comparator.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace SebastianBergmann\Comparator;
+
+/**
+ * Compares objects for equality.
+ */
+class ObjectComparator extends ArrayComparator
+{
+    /**
+     * Returns whether the comparator can compare two values.
+     *
+     * @param mixed $expected The first value to compare
+     * @param mixed $actual   The second value to compare
+     *
+     * @return bool
+     */
+    public function accepts($expected, $actual)
+    {
+        return \is_object($expected) && \is_object($actual);
+    }
+
+    /**
+     * Asserts that two values are equal.
+     *
+     * @param mixed $expected     First value to compare
+     * @param mixed $actual       Second value to compare
+     * @param float $delta        Allowed numerical distance between two values to consider them equal
+     * @param bool  $canonicalize Arrays are sorted before comparison when set to true
+     * @param bool  $ignoreCase   Case is ignored when set to true
+     * @param array $processed    List of already processed elements (used to prevent infinite recursion)
+     *
+     * @throws ComparisonFailure
+     */
+    public function assertEquals($expected, $actual, $delta = 0.0, $canonicalize = false, $ignoreCase = false, array &$processed = [])
+    {
+        if (\get_class($actual) !== \get_class($expected)) {
+            throw new ComparisonFailure(
+                $expected,
+                $actual,
+                $this->exporter->export($expected),
+                $this->exporter->export($actual),
+                false,
+                \sprintf(
+                    '%s is not instance of expected class "%s".',
+                    $this->exporter->export($actual),
+                    \get_class($expected)
+                )
+            );
+        }
+
+        // don't compare twice to allow for cyclic dependencies
+        if (\in_array([$actual, $expected], $processed, true) ||
+            \in_array([$expected, $actual], $processed, true)) {
+            return;
+        }
+
+        $processed[] = [$actual, $expected];
+
+        // don't compare objects if they are identical
+        // this helps to avoid the error "maximum function nesting level reached"
+        // CAUTION: this conditional clause is not tested
+        if ($actual !== $expected) {
+            try {
+                parent::assertEquals(
+                    $this->toArray($expected),
+                    $this->toArray($actual),
+                    $delta,
+                    $canonicalize,
+                    $ignoreCase,
+                    $processed
+                );
+            } catch (ComparisonFailure $e) {
+                throw new ComparisonFailure(
+                    $expected,
+                    $actual,
+                    // replace "Array" with "MyClass object"
+                    \substr_replace($e->getExpectedAsString(), \get_class($expected) . ' Object', 0, 5),
+                    \substr_replace($e->getActualAsString(), \get_class($actual) . ' Object', 0, 5),
+                    false,
+                    'Failed asserting that two objects are equal.'
+                );
+            }
+        }
+    }
+
+    /**
+     * Converts an object to an array containing all of its private, protected
+     * and public properties.
+     *
+     * @param object $object
+     *
+     * @return array
+     */
+    protected function toArray($object)
+    {
+        return $this->exporter->toArray($object);
+    }
+}

vendor/sebastian/comparator/src/ResourceComparator.php

@@ -0,0 +1,52 @@
+<?php
+/*
+ * This file is part of sebastian/comparator.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace SebastianBergmann\Comparator;
+
+/**
+ * Compares resources for equality.
+ */
+class ResourceComparator extends Comparator
+{
+    /**
+     * Returns whether the comparator can compare two values.
+     *
+     * @param mixed $expected The first value to compare
+     * @param mixed $actual   The second value to compare
+     *
+     * @return bool
+     */
+    public function accepts($expected, $actual)
+    {
+        return \is_resource($expected) && \is_resource($actual);
+    }
+
+    /**
+     * Asserts that two values are equal.
+     *
+     * @param mixed $expected     First value to compare
+     * @param mixed $actual       Second value to compare
+     * @param float $delta        Allowed numerical distance between two values to consider them equal
+     * @param bool  $canonicalize Arrays are sorted before comparison when set to true
+     * @param bool  $ignoreCase   Case is ignored when set to true
+     *
+     * @throws ComparisonFailure
+     */
+    public function assertEquals($expected, $actual, $delta = 0.0, $canonicalize = false, $ignoreCase = false)
+    {
+        if ($actual != $expected) {
+            throw new ComparisonFailure(
+                $expected,
+                $actual,
+                $this->exporter->export($expected),
+                $this->exporter->export($actual)
+            );
+        }
+    }
+}

vendor/sebastian/comparator/src/ScalarComparator.php

@@ -0,0 +1,91 @@
+<?php
+/*
+ * This file is part of sebastian/comparator.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace SebastianBergmann\Comparator;
+
+/**
+ * Compares scalar or NULL values for equality.
+ */
+class ScalarComparator extends Comparator
+{
+    /**
+     * Returns whether the comparator can compare two values.
+     *
+     * @param mixed $expected The first value to compare
+     * @param mixed $actual   The second value to compare
+     *
+     * @return bool
+     *
+     * @since  Method available since Release 3.6.0
+     */
+    public function accepts($expected, $actual)
+    {
+        return ((\is_scalar($expected) xor null === $expected) &&
+               (\is_scalar($actual) xor null === $actual))
+               // allow comparison between strings and objects featuring __toString()
+               || (\is_string($expected) && \is_object($actual) && \method_exists($actual, '__toString'))
+               || (\is_object($expected) && \method_exists($expected, '__toString') && \is_string($actual));
+    }
+
+    /**
+     * Asserts that two values are equal.
+     *
+     * @param mixed $expected     First value to compare
+     * @param mixed $actual       Second value to compare
+     * @param float $delta        Allowed numerical distance between two values to consider them equal
+     * @param bool  $canonicalize Arrays are sorted before comparison when set to true
+     * @param bool  $ignoreCase   Case is ignored when set to true
+     *
+     * @throws ComparisonFailure
+     */
+    public function assertEquals($expected, $actual, $delta = 0.0, $canonicalize = false, $ignoreCase = false)
+    {
+        $expectedToCompare = $expected;
+        $actualToCompare   = $actual;
+
+        // always compare as strings to avoid strange behaviour
+        // otherwise 0 == 'Foobar'
+        if (\is_string($expected) || \is_string($actual)) {
+            $expectedToCompare = (string) $expectedToCompare;
+            $actualToCompare   = (string) $actualToCompare;
+
+            if ($ignoreCase) {
+                $expectedToCompare = \strtolower($expectedToCompare);
+                $actualToCompare   = \strtolower($actualToCompare);
+            }
+        }
+
+        if ($expectedToCompare !== $actualToCompare && \is_string($expected) && \is_string($actual)) {
+            throw new ComparisonFailure(
+                $expected,
+                $actual,
+                $this->exporter->export($expected),
+                $this->exporter->export($actual),
+                false,
+                'Failed asserting that two strings are equal.'
+            );
+        }
+
+        if ($expectedToCompare != $actualToCompare) {
+            throw new ComparisonFailure(
+                $expected,
+                $actual,
+                // no diff is required
+                '',
+                '',
+                false,
+                \sprintf(
+                    'Failed asserting that %s matches expected %s.',
+                    $this->exporter->export($actual),
+                    $this->exporter->export($expected)
+                )
+            );
+        }
+    }
+}

vendor/sebastian/comparator/src/SplObjectStorageComparator.php

@@ -0,0 +1,69 @@
+<?php
+/*
+ * This file is part of sebastian/comparator.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace SebastianBergmann\Comparator;
+
+/**
+ * Compares \SplObjectStorage instances for equality.
+ */
+class SplObjectStorageComparator extends Comparator
+{
+    /**
+     * Returns whether the comparator can compare two values.
+     *
+     * @param mixed $expected The first value to compare
+     * @param mixed $actual   The second value to compare
+     *
+     * @return bool
+     */
+    public function accepts($expected, $actual)
+    {
+        return $expected instanceof \SplObjectStorage && $actual instanceof \SplObjectStorage;
+    }
+
+    /**
+     * Asserts that two values are equal.
+     *
+     * @param mixed $expected     First value to compare
+     * @param mixed $actual       Second value to compare
+     * @param float $delta        Allowed numerical distance between two values to consider them equal
+     * @param bool  $canonicalize Arrays are sorted before comparison when set to true
+     * @param bool  $ignoreCase   Case is ignored when set to true
+     *
+     * @throws ComparisonFailure
+     */
+    public function assertEquals($expected, $actual, $delta = 0.0, $canonicalize = false, $ignoreCase = false)
+    {
+        foreach ($actual as $object) {
+            if (!$expected->contains($object)) {
+                throw new ComparisonFailure(
+                    $expected,
+                    $actual,
+                    $this->exporter->export($expected),
+                    $this->exporter->export($actual),
+                    false,
+                    'Failed asserting that two objects are equal.'
+                );
+            }
+        }
+
+        foreach ($expected as $object) {
+            if (!$actual->contains($object)) {
+                throw new ComparisonFailure(
+                    $expected,
+                    $actual,
+                    $this->exporter->export($expected),
+                    $this->exporter->export($actual),
+                    false,
+                    'Failed asserting that two objects are equal.'
+                );
+            }
+        }
+    }
+}

vendor/sebastian/comparator/src/TypeComparator.php

@@ -0,0 +1,59 @@
+<?php
+/*
+ * This file is part of sebastian/comparator.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace SebastianBergmann\Comparator;
+
+/**
+ * Compares values for type equality.
+ */
+class TypeComparator extends Comparator
+{
+    /**
+     * Returns whether the comparator can compare two values.
+     *
+     * @param mixed $expected The first value to compare
+     * @param mixed $actual   The second value to compare
+     *
+     * @return bool
+     */
+    public function accepts($expected, $actual)
+    {
+        return true;
+    }
+
+    /**
+     * Asserts that two values are equal.
+     *
+     * @param mixed $expected     First value to compare
+     * @param mixed $actual       Second value to compare
+     * @param float $delta        Allowed numerical distance between two values to consider them equal
+     * @param bool  $canonicalize Arrays are sorted before comparison when set to true
+     * @param bool  $ignoreCase   Case is ignored when set to true
+     *
+     * @throws ComparisonFailure
+     */
+    public function assertEquals($expected, $actual, $delta = 0.0, $canonicalize = false, $ignoreCase = false)
+    {
+        if (\gettype($expected) != \gettype($actual)) {
+            throw new ComparisonFailure(
+                $expected,
+                $actual,
+                // we don't need a diff
+                '',
+                '',
+                false,
+                \sprintf(
+                    '%s does not match expected type "%s".',
+                    $this->exporter->shortenedExport($actual),
+                    \gettype($expected)
+                )
+            );
+        }
+    }
+}

vendor/sebastian/comparator/tests/ArrayComparatorTest.php

@@ -0,0 +1,161 @@
+<?php
+/*
+ * This file is part of sebastian/comparator.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace SebastianBergmann\Comparator;
+
+use PHPUnit\Framework\TestCase;
+
+/**
+ * @covers \SebastianBergmann\Comparator\ArrayComparator<extended>
+ *
+ * @uses \SebastianBergmann\Comparator\Comparator
+ * @uses \SebastianBergmann\Comparator\Factory
+ * @uses \SebastianBergmann\Comparator\ComparisonFailure
+ */
+final class ArrayComparatorTest extends TestCase
+{
+    /**
+     * @var ArrayComparator
+     */
+    private $comparator;
+
+    protected function setUp(): void
+    {
+        $this->comparator = new ArrayComparator;
+        $this->comparator->setFactory(new Factory);
+    }
+
+    public function acceptsFailsProvider()
+    {
+        return [
+            [[], null],
+            [null, []],
+            [null, null]
+        ];
+    }
+
+    public function assertEqualsSucceedsProvider()
+    {
+        return [
+            [
+                ['a' => 1, 'b' => 2],
+                ['b' => 2, 'a' => 1]
+            ],
+            [
+                [1],
+                ['1']
+            ],
+            [
+                [3, 2, 1],
+                [2, 3, 1],
+                0,
+                true
+            ],
+            [
+                [2.3],
+                [2.5],
+                0.5
+            ],
+            [
+                [[2.3]],
+                [[2.5]],
+                0.5
+            ],
+            [
+                [new Struct(2.3)],
+                [new Struct(2.5)],
+                0.5
+            ],
+        ];
+    }
+
+    public function assertEqualsFailsProvider()
+    {
+        return [
+            [
+                [],
+                [0 => 1]
+            ],
+            [
+                [0 => 1],
+                []
+            ],
+            [
+                [0 => null],
+                []
+            ],
+            [
+                [0 => 1, 1 => 2],
+                [0 => 1, 1 => 3]
+            ],
+            [
+                ['a', 'b' => [1, 2]],
+                ['a', 'b' => [2, 1]]
+            ],
+            [
+                [2.3],
+                [4.2],
+                0.5
+            ],
+            [
+                [[2.3]],
+                [[4.2]],
+                0.5
+            ],
+            [
+                [new Struct(2.3)],
+                [new Struct(4.2)],
+                0.5
+            ]
+        ];
+    }
+
+    public function testAcceptsSucceeds(): void
+    {
+        $this->assertTrue(
+          $this->comparator->accepts([], [])
+        );
+    }
+
+    /**
+     * @dataProvider acceptsFailsProvider
+     */
+    public function testAcceptsFails($expected, $actual): void
+    {
+        $this->assertFalse(
+          $this->comparator->accepts($expected, $actual)
+        );
+    }
+
+    /**
+     * @dataProvider assertEqualsSucceedsProvider
+     */
+    public function testAssertEqualsSucceeds($expected, $actual, $delta = 0.0, $canonicalize = false): void
+    {
+        $exception = null;
+
+        try {
+            $this->comparator->assertEquals($expected, $actual, $delta, $canonicalize);
+        } catch (ComparisonFailure $exception) {
+        }
+
+        $this->assertNull($exception, 'Unexpected ComparisonFailure');
+    }
+
+    /**
+     * @dataProvider assertEqualsFailsProvider
+     */
+    public function testAssertEqualsFails($expected, $actual, $delta = 0.0, $canonicalize = false): void
+    {
+        $this->expectException(ComparisonFailure::class);
+        $this->expectExceptionMessage('Failed asserting that two arrays are equal');
+
+        $this->comparator->assertEquals($expected, $actual, $delta, $canonicalize);
+    }
+}

vendor/sebastian/comparator/tests/ComparisonFailureTest.php

@@ -0,0 +1,59 @@
+<?php
+/*
+ * This file is part of sebastian/comparator.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace SebastianBergmann\Comparator;
+
+use PHPUnit\Framework\TestCase;
+
+/**
+ * @covers \SebastianBergmann\Comparator\ComparisonFailure
+ *
+ * @uses \SebastianBergmann\Comparator\Factory
+ */
+final class ComparisonFailureTest extends TestCase
+{
+    public function testComparisonFailure(): void
+    {
+        $actual   = "\nB\n";
+        $expected = "\nA\n";
+        $message  = 'Test message';
+
+        $failure = new ComparisonFailure(
+            $expected,
+            $actual,
+            '|' . $expected,
+            '|' . $actual,
+            false,
+            $message
+        );
+
+        $this->assertSame($actual, $failure->getActual());
+        $this->assertSame($expected, $failure->getExpected());
+        $this->assertSame('|' . $actual, $failure->getActualAsString());
+        $this->assertSame('|' . $expected, $failure->getExpectedAsString());
+
+        $diff = '
+--- Expected
++++ Actual
+@@ @@
+ |
+-A
++B
+';
+        $this->assertSame($diff, $failure->getDiff());
+        $this->assertSame($message . $diff, $failure->toString());
+    }
+
+    public function testDiffNotPossible(): void
+    {
+        $failure = new ComparisonFailure('a', 'b', false, false, true, 'test');
+        $this->assertSame('', $failure->getDiff());
+        $this->assertSame('test', $failure->toString());
+    }
+}

vendor/sebastian/comparator/tests/DOMNodeComparatorTest.php

@@ -0,0 +1,180 @@
+<?php
+/*
+ * This file is part of sebastian/comparator.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace SebastianBergmann\Comparator;
+
+use DOMDocument;
+use DOMNode;
+use PHPUnit\Framework\TestCase;
+
+/**
+ * @covers \SebastianBergmann\Comparator\DOMNodeComparator<extended>
+ *
+ * @uses \SebastianBergmann\Comparator\Comparator
+ * @uses \SebastianBergmann\Comparator\Factory
+ * @uses \SebastianBergmann\Comparator\ComparisonFailure
+ */
+final class DOMNodeComparatorTest extends TestCase
+{
+    /**
+     * @var DOMNodeComparator
+     */
+    private $comparator;
+
+    protected function setUp(): void
+    {
+        $this->comparator = new DOMNodeComparator;
+    }
+
+    public function acceptsSucceedsProvider()
+    {
+        $document = new DOMDocument;
+        $node     = new DOMNode;
+
+        return [
+            [$document, $document],
+            [$node, $node],
+            [$document, $node],
+            [$node, $document]
+        ];
+    }
+
+    public function acceptsFailsProvider()
+    {
+        $document = new DOMDocument;
+
+        return [
+            [$document, null],
+            [null, $document],
+            [null, null]
+        ];
+    }
+
+    public function assertEqualsSucceedsProvider()
+    {
+        return [
+            [
+                $this->createDOMDocument('<root></root>'),
+                $this->createDOMDocument('<root/>')
+            ],
+            [
+                $this->createDOMDocument('<root attr="bar"></root>'),
+                $this->createDOMDocument('<root attr="bar"/>')
+            ],
+            [
+                $this->createDOMDocument('<root><foo attr="bar"></foo></root>'),
+                $this->createDOMDocument('<root><foo attr="bar"/></root>')
+            ],
+            [
+                $this->createDOMDocument("<root>\n  <child/>\n</root>"),
+                $this->createDOMDocument('<root><child/></root>')
+            ],
+            [
+                $this->createDOMDocument('<Root></Root>'),
+                $this->createDOMDocument('<root></root>'),
+                $ignoreCase = true
+            ],
+            [
+                $this->createDOMDocument("<a x='' a=''/>"),
+                $this->createDOMDocument("<a a='' x=''/>"),
+            ],
+        ];
+    }
+
+    public function assertEqualsFailsProvider()
+    {
+        return [
+            [
+                $this->createDOMDocument('<root></root>'),
+                $this->createDOMDocument('<bar/>')
+            ],
+            [
+                $this->createDOMDocument('<foo attr1="bar"/>'),
+                $this->createDOMDocument('<foo attr1="foobar"/>')
+            ],
+            [
+                $this->createDOMDocument('<foo> bar </foo>'),
+                $this->createDOMDocument('<foo />')
+            ],
+            [
+                $this->createDOMDocument('<foo xmlns="urn:myns:bar"/>'),
+                $this->createDOMDocument('<foo xmlns="urn:notmyns:bar"/>')
+            ],
+            [
+                $this->createDOMDocument('<foo> bar </foo>'),
+                $this->createDOMDocument('<foo> bir </foo>')
+            ],
+            [
+                $this->createDOMDocument('<Root></Root>'),
+                $this->createDOMDocument('<root></root>')
+            ],
+            [
+                $this->createDOMDocument('<root> bar </root>'),
+                $this->createDOMDocument('<root> BAR </root>')
+            ]
+        ];
+    }
+
+    /**
+     * @dataProvider acceptsSucceedsProvider
+     */
+    public function testAcceptsSucceeds($expected, $actual): void
+    {
+        $this->assertTrue(
+          $this->comparator->accepts($expected, $actual)
+        );
+    }
+
+    /**
+     * @dataProvider acceptsFailsProvider
+     */
+    public function testAcceptsFails($expected, $actual): void
+    {
+        $this->assertFalse(
+          $this->comparator->accepts($expected, $actual)
+        );
+    }
+
+    /**
+     * @dataProvider assertEqualsSucceedsProvider
+     */
+    public function testAssertEqualsSucceeds($expected, $actual, $ignoreCase = false): void
+    {
+        $exception = null;
+
+        try {
+            $delta        = 0.0;
+            $canonicalize = false;
+            $this->comparator->assertEquals($expected, $actual, $delta, $canonicalize, $ignoreCase);
+        } catch (ComparisonFailure $exception) {
+        }
+
+        $this->assertNull($exception, 'Unexpected ComparisonFailure');
+    }
+
+    /**
+     * @dataProvider assertEqualsFailsProvider
+     */
+    public function testAssertEqualsFails($expected, $actual): void
+    {
+        $this->expectException(ComparisonFailure::class);
+        $this->expectExceptionMessage('Failed asserting that two DOM');
+
+        $this->comparator->assertEquals($expected, $actual);
+    }
+
+    private function createDOMDocument($content)
+    {
+        $document                     = new DOMDocument;
+        $document->preserveWhiteSpace = false;
+        $document->loadXML($content);
+
+        return $document;
+    }
+}

vendor/sebastian/comparator/tests/DateTimeComparatorTest.php

@@ -0,0 +1,213 @@
+<?php
+/*
+ * This file is part of sebastian/comparator.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace SebastianBergmann\Comparator;
+
+use DateTime;
+use DateTimeImmutable;
+use DateTimeZone;
+use PHPUnit\Framework\TestCase;
+
+/**
+ * @covers \SebastianBergmann\Comparator\DateTimeComparator<extended>
+ *
+ * @uses \SebastianBergmann\Comparator\Comparator
+ * @uses \SebastianBergmann\Comparator\Factory
+ * @uses \SebastianBergmann\Comparator\ComparisonFailure
+ */
+final class DateTimeComparatorTest extends TestCase
+{
+    /**
+     * @var DateTimeComparator
+     */
+    private $comparator;
+
+    protected function setUp(): void
+    {
+        $this->comparator = new DateTimeComparator;
+    }
+
+    public function acceptsFailsProvider()
+    {
+        $datetime = new DateTime;
+
+        return [
+            [$datetime, null],
+            [null, $datetime],
+            [null, null]
+        ];
+    }
+
+    public function assertEqualsSucceedsProvider()
+    {
+        return [
+            [
+                new DateTime('2013-03-29 04:13:35', new DateTimeZone('America/New_York')),
+                new DateTime('2013-03-29 04:13:25', new DateTimeZone('America/New_York')),
+                10
+            ],
+            [
+                new DateTime('2013-03-29 04:13:35', new DateTimeZone('America/New_York')),
+                new DateTime('2013-03-29 04:14:40', new DateTimeZone('America/New_York')),
+                65
+            ],
+            [
+                new DateTime('2013-03-29', new DateTimeZone('America/New_York')),
+                new DateTime('2013-03-29', new DateTimeZone('America/New_York'))
+            ],
+            [
+                new DateTime('2013-03-29 04:13:35', new DateTimeZone('America/New_York')),
+                new DateTime('2013-03-29 03:13:35', new DateTimeZone('America/Chicago'))
+            ],
+            [
+                new DateTime('2013-03-29 04:13:35', new DateTimeZone('America/New_York')),
+                new DateTime('2013-03-29 03:13:49', new DateTimeZone('America/Chicago')),
+                15
+            ],
+            [
+                new DateTime('2013-03-30', new DateTimeZone('America/New_York')),
+                new DateTime('2013-03-29 23:00:00', new DateTimeZone('America/Chicago'))
+            ],
+            [
+                new DateTime('2013-03-30', new DateTimeZone('America/New_York')),
+                new DateTime('2013-03-29 23:01:30', new DateTimeZone('America/Chicago')),
+                100
+            ],
+            [
+                new DateTime('@1364616000'),
+                new DateTime('2013-03-29 23:00:00', new DateTimeZone('America/Chicago'))
+            ],
+            [
+                new DateTime('2013-03-29T05:13:35-0500'),
+                new DateTime('2013-03-29T04:13:35-0600')
+            ],
+            [
+                new DateTimeImmutable('2013-03-30', new DateTimeZone('America/New_York')),
+                new DateTimeImmutable('2013-03-29 23:01:30', new DateTimeZone('America/Chicago')),
+                100
+            ],
+            [
+                new DateTimeImmutable('2013-03-30 12:00:00', new DateTimeZone('UTC')),
+                new DateTimeImmutable('2013-03-30 12:00:00.5', new DateTimeZone('UTC')),
+                0.5
+            ],
+        ];
+    }
+
+    public function assertEqualsFailsProvider()
+    {
+        return [
+            [
+                new DateTime('2013-03-29 04:13:35', new DateTimeZone('America/New_York')),
+                new DateTime('2013-03-29 03:13:35', new DateTimeZone('America/New_York'))
+            ],
+            [
+                new DateTime('2013-03-29 04:13:35', new DateTimeZone('America/New_York')),
+                new DateTime('2013-03-29 03:13:35', new DateTimeZone('America/New_York')),
+                3500
+            ],
+            [
+                new DateTime('2013-03-29 04:13:35', new DateTimeZone('America/New_York')),
+                new DateTime('2013-03-29 05:13:35', new DateTimeZone('America/New_York')),
+                3500
+            ],
+            [
+                new DateTime('2013-03-29', new DateTimeZone('America/New_York')),
+                new DateTime('2013-03-30', new DateTimeZone('America/New_York'))
+            ],
+            [
+                new DateTime('2013-03-29', new DateTimeZone('America/New_York')),
+                new DateTime('2013-03-30', new DateTimeZone('America/New_York')),
+                43200
+            ],
+            [
+                new DateTime('2013-03-29 04:13:35', new DateTimeZone('America/New_York')),
+                new DateTime('2013-03-29 04:13:35', new DateTimeZone('America/Chicago')),
+            ],
+            [
+                new DateTime('2013-03-29 04:13:35', new DateTimeZone('America/New_York')),
+                new DateTime('2013-03-29 04:13:35', new DateTimeZone('America/Chicago')),
+                3500
+            ],
+            [
+                new DateTime('2013-03-30', new DateTimeZone('America/New_York')),
+                new DateTime('2013-03-30', new DateTimeZone('America/Chicago'))
+            ],
+            [
+                new DateTime('2013-03-29T05:13:35-0600'),
+                new DateTime('2013-03-29T04:13:35-0600')
+            ],
+            [
+                new DateTime('2013-03-29T05:13:35-0600'),
+                new DateTime('2013-03-29T05:13:35-0500')
+            ],
+        ];
+    }
+
+    public function testAcceptsSucceeds(): void
+    {
+        $this->assertTrue(
+            $this->comparator->accepts(
+                new DateTime,
+                new DateTime
+            )
+        );
+    }
+
+    /**
+     * @dataProvider acceptsFailsProvider
+     */
+    public function testAcceptsFails($expected, $actual): void
+    {
+        $this->assertFalse(
+            $this->comparator->accepts($expected, $actual)
+        );
+    }
+
+    /**
+     * @dataProvider assertEqualsSucceedsProvider
+     */
+    public function testAssertEqualsSucceeds($expected, $actual, $delta = 0.0): void
+    {
+        $exception = null;
+
+        try {
+            $this->comparator->assertEquals($expected, $actual, $delta);
+        } catch (ComparisonFailure $exception) {
+        }
+
+        $this->assertNull($exception, 'Unexpected ComparisonFailure');
+    }
+
+    /**
+     * @dataProvider assertEqualsFailsProvider
+     */
+    public function testAssertEqualsFails($expected, $actual, $delta = 0.0): void
+    {
+        $this->expectException(ComparisonFailure::class);
+        $this->expectExceptionMessage('Failed asserting that two DateTime objects are equal.');
+
+        $this->comparator->assertEquals($expected, $actual, $delta);
+    }
+
+    public function testAcceptsDateTimeInterface(): void
+    {
+        $this->assertTrue($this->comparator->accepts(new DateTime, new DateTimeImmutable));
+    }
+
+    public function testSupportsDateTimeInterface(): void
+    {
+        $this->assertNull(
+            $this->comparator->assertEquals(
+                new DateTime('2013-03-29 04:13:35', new DateTimeZone('America/New_York')),
+                new DateTimeImmutable('2013-03-29 04:13:35', new DateTimeZone('America/New_York'))
+            )
+        );
+    }
+}

vendor/sebastian/comparator/tests/DoubleComparatorTest.php

@@ -0,0 +1,135 @@
+<?php
+/*
+ * This file is part of sebastian/comparator.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace SebastianBergmann\Comparator;
+
+use PHPUnit\Framework\TestCase;
+
+/**
+ * @covers \SebastianBergmann\Comparator\DoubleComparator<extended>
+ *
+ * @uses \SebastianBergmann\Comparator\Comparator
+ * @uses \SebastianBergmann\Comparator\Factory
+ * @uses \SebastianBergmann\Comparator\ComparisonFailure
+ */
+final class DoubleComparatorTest extends TestCase
+{
+    /**
+     * @var DoubleComparator
+     */
+    private $comparator;
+
+    protected function setUp(): void
+    {
+        $this->comparator = new DoubleComparator;
+    }
+
+    public function acceptsSucceedsProvider()
+    {
+        return [
+            [0, 5.0],
+            [5.0, 0],
+            ['5', 4.5],
+            [1.2e3, 7E-10],
+            [3, \acos(8)],
+            [\acos(8), 3],
+            [\acos(8), \acos(8)]
+        ];
+    }
+
+    public function acceptsFailsProvider()
+    {
+        return [
+            [5, 5],
+            ['4.5', 5],
+            [0x539, 02471],
+            [5.0, false],
+            [null, 5.0]
+        ];
+    }
+
+    public function assertEqualsSucceedsProvider()
+    {
+        return [
+            [2.3, 2.3],
+            ['2.3', 2.3],
+            [5.0, 5],
+            [5, 5.0],
+            [5.0, '5'],
+            [1.2e3, 1200],
+            [2.3, 2.5, 0.5],
+            [3, 3.05, 0.05],
+            [1.2e3, 1201, 1],
+            [(string) (1 / 3), 1 - 2 / 3],
+            [1 / 3, (string) (1 - 2 / 3)]
+        ];
+    }
+
+    public function assertEqualsFailsProvider()
+    {
+        return [
+            [2.3, 4.2],
+            ['2.3', 4.2],
+            [5.0, '4'],
+            [5.0, 6],
+            [1.2e3, 1201],
+            [2.3, 2.5, 0.2],
+            [3, 3.05, 0.04],
+            [3, \acos(8)],
+            [\acos(8), 3],
+            [\acos(8), \acos(8)]
+        ];
+    }
+
+    /**
+     * @dataProvider acceptsSucceedsProvider
+     */
+    public function testAcceptsSucceeds($expected, $actual): void
+    {
+        $this->assertTrue(
+          $this->comparator->accepts($expected, $actual)
+        );
+    }
+
+    /**
+     * @dataProvider acceptsFailsProvider
+     */
+    public function testAcceptsFails($expected, $actual): void
+    {
+        $this->assertFalse(
+          $this->comparator->accepts($expected, $actual)
+        );
+    }
+
+    /**
+     * @dataProvider assertEqualsSucceedsProvider
+     */
+    public function testAssertEqualsSucceeds($expected, $actual, $delta = 0.0): void
+    {
+        $exception = null;
+
+        try {
+            $this->comparator->assertEquals($expected, $actual, $delta);
+        } catch (ComparisonFailure $exception) {
+        }
+
+        $this->assertNull($exception, 'Unexpected ComparisonFailure');
+    }
+
+    /**
+     * @dataProvider assertEqualsFailsProvider
+     */
+    public function testAssertEqualsFails($expected, $actual, $delta = 0.0): void
+    {
+        $this->expectException(ComparisonFailure::class);
+        $this->expectExceptionMessage('matches expected');
+
+        $this->comparator->assertEquals($expected, $actual, $delta);
+    }
+}

vendor/sebastian/comparator/tests/ExceptionComparatorTest.php

@@ -0,0 +1,136 @@
+<?php
+/*
+ * This file is part of sebastian/comparator.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace SebastianBergmann\Comparator;
+
+use Exception;
+use PHPUnit\Framework\TestCase;
+use RuntimeException;
+
+/**
+ * @covers \SebastianBergmann\Comparator\ExceptionComparator<extended>
+ *
+ * @uses \SebastianBergmann\Comparator\Comparator
+ * @uses \SebastianBergmann\Comparator\Factory
+ * @uses \SebastianBergmann\Comparator\ComparisonFailure
+ */
+final class ExceptionComparatorTest extends TestCase
+{
+    /**
+     * @var ExceptionComparator
+     */
+    private $comparator;
+
+    protected function setUp(): void
+    {
+        $this->comparator = new ExceptionComparator;
+        $this->comparator->setFactory(new Factory);
+    }
+
+    public function acceptsSucceedsProvider()
+    {
+        return [
+            [new Exception, new Exception],
+            [new RuntimeException, new RuntimeException],
+            [new Exception, new RuntimeException]
+        ];
+    }
+
+    public function acceptsFailsProvider()
+    {
+        return [
+            [new Exception, null],
+            [null, new Exception],
+            [null, null]
+        ];
+    }
+
+    public function assertEqualsSucceedsProvider()
+    {
+        $exception1 = new Exception;
+        $exception2 = new Exception;
+
+        $exception3 = new RuntimeException('Error', 100);
+        $exception4 = new RuntimeException('Error', 100);
+
+        return [
+            [$exception1, $exception1],
+            [$exception1, $exception2],
+            [$exception3, $exception3],
+            [$exception3, $exception4]
+        ];
+    }
+
+    public function assertEqualsFailsProvider()
+    {
+        $typeMessage  = 'not instance of expected class';
+        $equalMessage = 'Failed asserting that two objects are equal.';
+
+        $exception1 = new Exception('Error', 100);
+        $exception2 = new Exception('Error', 101);
+        $exception3 = new Exception('Errors', 101);
+
+        $exception4 = new RuntimeException('Error', 100);
+        $exception5 = new RuntimeException('Error', 101);
+
+        return [
+            [$exception1, $exception2, $equalMessage],
+            [$exception1, $exception3, $equalMessage],
+            [$exception1, $exception4, $typeMessage],
+            [$exception2, $exception3, $equalMessage],
+            [$exception4, $exception5, $equalMessage]
+        ];
+    }
+
+    /**
+     * @dataProvider acceptsSucceedsProvider
+     */
+    public function testAcceptsSucceeds($expected, $actual): void
+    {
+        $this->assertTrue(
+          $this->comparator->accepts($expected, $actual)
+        );
+    }
+
+    /**
+     * @dataProvider acceptsFailsProvider
+     */
+    public function testAcceptsFails($expected, $actual): void
+    {
+        $this->assertFalse(
+          $this->comparator->accepts($expected, $actual)
+        );
+    }
+
+    /**
+     * @dataProvider assertEqualsSucceedsProvider
+     */
+    public function testAssertEqualsSucceeds($expected, $actual): void
+    {
+        $exception = null;
+
+        try {
+            $this->comparator->assertEquals($expected, $actual);
+        } catch (ComparisonFailure $exception) {
+        }
+
+        $this->assertNull($exception, 'Unexpected ComparisonFailure');
+    }
+
+    /**
+     * @dataProvider assertEqualsFailsProvider
+     */
+    public function testAssertEqualsFails($expected, $actual, $message): void
+    {
+        $this->expectException(ComparisonFailure::class);
+        $this->expectExceptionMessage($message);
+
+        $this->comparator->assertEquals($expected, $actual);
+    }
+}

vendor/sebastian/comparator/tests/FactoryTest.php

@@ -0,0 +1,117 @@
+<?php
+/*
+ * This file is part of sebastian/comparator.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace SebastianBergmann\Comparator;
+
+use PHPUnit\Framework\TestCase;
+
+/**
+ * @covers \SebastianBergmann\Comparator\Factory
+ *
+ * @uses \SebastianBergmann\Comparator\Comparator
+ * @uses \SebastianBergmann\Comparator\Factory
+ * @uses \SebastianBergmann\Comparator\ComparisonFailure
+ */
+final class FactoryTest extends TestCase
+{
+    public function instanceProvider()
+    {
+        $tmpfile = \tmpfile();
+
+        return [
+            [null, null, 'SebastianBergmann\\Comparator\\ScalarComparator'],
+            [null, true, 'SebastianBergmann\\Comparator\\ScalarComparator'],
+            [true, null, 'SebastianBergmann\\Comparator\\ScalarComparator'],
+            [true, true, 'SebastianBergmann\\Comparator\\ScalarComparator'],
+            [false, false, 'SebastianBergmann\\Comparator\\ScalarComparator'],
+            [true, false, 'SebastianBergmann\\Comparator\\ScalarComparator'],
+            [false, true, 'SebastianBergmann\\Comparator\\ScalarComparator'],
+            ['', '', 'SebastianBergmann\\Comparator\\ScalarComparator'],
+            ['0', '0', 'SebastianBergmann\\Comparator\\ScalarComparator'],
+            ['0', 0, 'SebastianBergmann\\Comparator\\NumericComparator'],
+            [0, '0', 'SebastianBergmann\\Comparator\\NumericComparator'],
+            [0, 0, 'SebastianBergmann\\Comparator\\NumericComparator'],
+            [1.0, 0, 'SebastianBergmann\\Comparator\\DoubleComparator'],
+            [0, 1.0, 'SebastianBergmann\\Comparator\\DoubleComparator'],
+            [1.0, 1.0, 'SebastianBergmann\\Comparator\\DoubleComparator'],
+            [[1], [1], 'SebastianBergmann\\Comparator\\ArrayComparator'],
+            [$tmpfile, $tmpfile, 'SebastianBergmann\\Comparator\\ResourceComparator'],
+            [new \stdClass, new \stdClass, 'SebastianBergmann\\Comparator\\ObjectComparator'],
+            [new \DateTime, new \DateTime, 'SebastianBergmann\\Comparator\\DateTimeComparator'],
+            [new \SplObjectStorage, new \SplObjectStorage, 'SebastianBergmann\\Comparator\\SplObjectStorageComparator'],
+            [new \Exception, new \Exception, 'SebastianBergmann\\Comparator\\ExceptionComparator'],
+            [new \DOMDocument, new \DOMDocument, 'SebastianBergmann\\Comparator\\DOMNodeComparator'],
+            // mixed types
+            [$tmpfile, [1], 'SebastianBergmann\\Comparator\\TypeComparator'],
+            [[1], $tmpfile, 'SebastianBergmann\\Comparator\\TypeComparator'],
+            [$tmpfile, '1', 'SebastianBergmann\\Comparator\\TypeComparator'],
+            ['1', $tmpfile, 'SebastianBergmann\\Comparator\\TypeComparator'],
+            [$tmpfile, new \stdClass, 'SebastianBergmann\\Comparator\\TypeComparator'],
+            [new \stdClass, $tmpfile, 'SebastianBergmann\\Comparator\\TypeComparator'],
+            [new \stdClass, [1], 'SebastianBergmann\\Comparator\\TypeComparator'],
+            [[1], new \stdClass, 'SebastianBergmann\\Comparator\\TypeComparator'],
+            [new \stdClass, '1', 'SebastianBergmann\\Comparator\\TypeComparator'],
+            ['1', new \stdClass, 'SebastianBergmann\\Comparator\\TypeComparator'],
+            [new ClassWithToString, '1', 'SebastianBergmann\\Comparator\\ScalarComparator'],
+            ['1', new ClassWithToString, 'SebastianBergmann\\Comparator\\ScalarComparator'],
+            [1.0, new \stdClass, 'SebastianBergmann\\Comparator\\TypeComparator'],
+            [new \stdClass, 1.0, 'SebastianBergmann\\Comparator\\TypeComparator'],
+            [1.0, [1], 'SebastianBergmann\\Comparator\\TypeComparator'],
+            [[1], 1.0, 'SebastianBergmann\\Comparator\\TypeComparator'],
+        ];
+    }
+
+    /**
+     * @dataProvider instanceProvider
+     */
+    public function testGetComparatorFor($a, $b, $expected): void
+    {
+        $factory = new Factory;
+        $actual  = $factory->getComparatorFor($a, $b);
+        $this->assertInstanceOf($expected, $actual);
+    }
+
+    public function testRegister(): void
+    {
+        $comparator = new TestClassComparator;
+
+        $factory = new Factory;
+        $factory->register($comparator);
+
+        $a        = new TestClass;
+        $b        = new TestClass;
+        $expected = 'SebastianBergmann\\Comparator\\TestClassComparator';
+        $actual   = $factory->getComparatorFor($a, $b);
+
+        $factory->unregister($comparator);
+        $this->assertInstanceOf($expected, $actual);
+    }
+
+    public function testUnregister(): void
+    {
+        $comparator = new TestClassComparator;
+
+        $factory = new Factory;
+        $factory->register($comparator);
+        $factory->unregister($comparator);
+
+        $a        = new TestClass;
+        $b        = new TestClass;
+        $expected = 'SebastianBergmann\\Comparator\\ObjectComparator';
+        $actual   = $factory->getComparatorFor($a, $b);
+
+        $this->assertInstanceOf($expected, $actual);
+    }
+
+    public function testIsSingleton(): void
+    {
+        $f = Factory::getInstance();
+        $this->assertSame($f, Factory::getInstance());
+    }
+}

vendor/sebastian/comparator/tests/MockObjectComparatorTest.php

@@ -0,0 +1,168 @@
+<?php
+/*
+ * This file is part of sebastian/comparator.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace SebastianBergmann\Comparator;
+
+use PHPUnit\Framework\TestCase;
+use stdClass;
+
+/**
+ * @covers \SebastianBergmann\Comparator\MockObjectComparator<extended>
+ *
+ * @uses \SebastianBergmann\Comparator\Comparator
+ * @uses \SebastianBergmann\Comparator\Factory
+ * @uses \SebastianBergmann\Comparator\ComparisonFailure
+ */
+final class MockObjectComparatorTest extends TestCase
+{
+    /**
+     * @var MockObjectComparator
+     */
+    private $comparator;
+
+    protected function setUp(): void
+    {
+        $this->comparator = new MockObjectComparator;
+        $this->comparator->setFactory(new Factory);
+    }
+
+    public function acceptsSucceedsProvider()
+    {
+        $testmock = $this->createMock(TestClass::class);
+        $stdmock  = $this->createMock(stdClass::class);
+
+        return [
+            [$testmock, $testmock],
+            [$stdmock, $stdmock],
+            [$stdmock, $testmock]
+        ];
+    }
+
+    public function acceptsFailsProvider()
+    {
+        $stdmock = $this->createMock(stdClass::class);
+
+        return [
+            [$stdmock, null],
+            [null, $stdmock],
+            [null, null]
+        ];
+    }
+
+    public function assertEqualsSucceedsProvider()
+    {
+        // cyclic dependencies
+        $book1                  = $this->getMockBuilder(Book::class)->setMethods(null)->getMock();
+        $book1->author          = $this->getMockBuilder(Author::class)->setMethods(null)->setConstructorArgs(['Terry Pratchett'])->getMock();
+        $book1->author->books[] = $book1;
+        $book2                  = $this->getMockBuilder(Book::class)->setMethods(null)->getMock();
+        $book2->author          = $this->getMockBuilder(Author::class)->setMethods(null)->setConstructorArgs(['Terry Pratchett'])->getMock();
+        $book2->author->books[] = $book2;
+
+        $object1 = $this->getMockBuilder(SampleClass::class)->setMethods(null)->setConstructorArgs([4, 8, 15])->getMock();
+        $object2 = $this->getMockBuilder(SampleClass::class)->setMethods(null)->setConstructorArgs([4, 8, 15])->getMock();
+
+        return [
+            [$object1, $object1],
+            [$object1, $object2],
+            [$book1, $book1],
+            [$book1, $book2],
+            [
+                $this->getMockBuilder(Struct::class)->setMethods(null)->setConstructorArgs([2.3])->getMock(),
+                $this->getMockBuilder(Struct::class)->setMethods(null)->setConstructorArgs([2.5])->getMock(),
+                0.5
+            ]
+        ];
+    }
+
+    public function assertEqualsFailsProvider()
+    {
+        $typeMessage  = 'is not instance of expected class';
+        $equalMessage = 'Failed asserting that two objects are equal.';
+
+        // cyclic dependencies
+        $book1                  = $this->getMockBuilder(Book::class)->setMethods(null)->getMock();
+        $book1->author          = $this->getMockBuilder(Author::class)->setMethods(null)->setConstructorArgs(['Terry Pratchett'])->getMock();
+        $book1->author->books[] = $book1;
+        $book2                  = $this->getMockBuilder(Book::class)->setMethods(null)->getMock();
+        $book1->author          = $this->getMockBuilder(Author::class)->setMethods(null)->setConstructorArgs(['Terry Pratch'])->getMock();
+        $book2->author->books[] = $book2;
+
+        $book3         = $this->getMockBuilder(Book::class)->setMethods(null)->getMock();
+        $book3->author = 'Terry Pratchett';
+        $book4         = $this->createMock(stdClass::class);
+        $book4->author = 'Terry Pratchett';
+
+        $object1 = $this->getMockBuilder(SampleClass::class)->setMethods(null)->setConstructorArgs([4, 8, 15])->getMock();
+        $object2 = $this->getMockBuilder(SampleClass::class)->setMethods(null)->setConstructorArgs([16, 23, 42])->getMock();
+
+        return [
+            [
+                $this->getMockBuilder(SampleClass::class)->setMethods(null)->setConstructorArgs([4, 8, 15])->getMock(),
+                $this->getMockBuilder(SampleClass::class)->setMethods(null)->setConstructorArgs([16, 23, 42])->getMock(),
+                $equalMessage
+            ],
+            [$object1, $object2, $equalMessage],
+            [$book1, $book2, $equalMessage],
+            [$book3, $book4, $typeMessage],
+            [
+                $this->getMockBuilder(Struct::class)->setMethods(null)->setConstructorArgs([2.3])->getMock(),
+                $this->getMockBuilder(Struct::class)->setMethods(null)->setConstructorArgs([4.2])->getMock(),
+                $equalMessage,
+                0.5
+            ]
+        ];
+    }
+
+    /**
+     * @dataProvider acceptsSucceedsProvider
+     */
+    public function testAcceptsSucceeds($expected, $actual): void
+    {
+        $this->assertTrue(
+          $this->comparator->accepts($expected, $actual)
+        );
+    }
+
+    /**
+     * @dataProvider acceptsFailsProvider
+     */
+    public function testAcceptsFails($expected, $actual): void
+    {
+        $this->assertFalse(
+          $this->comparator->accepts($expected, $actual)
+        );
+    }
+
+    /**
+     * @dataProvider assertEqualsSucceedsProvider
+     */
+    public function testAssertEqualsSucceeds($expected, $actual, $delta = 0.0): void
+    {
+        $exception = null;
+
+        try {
+            $this->comparator->assertEquals($expected, $actual, $delta);
+        } catch (ComparisonFailure $exception) {
+        }
+
+        $this->assertNull($exception, 'Unexpected ComparisonFailure');
+    }
+
+    /**
+     * @dataProvider assertEqualsFailsProvider
+     */
+    public function testAssertEqualsFails($expected, $actual, $message, $delta = 0.0): void
+    {
+        $this->expectException(ComparisonFailure::class);
+        $this->expectExceptionMessage($message);
+
+        $this->comparator->assertEquals($expected, $actual, $delta);
+    }
+}

vendor/sebastian/comparator/tests/NumericComparatorTest.php

@@ -0,0 +1,123 @@
+<?php
+/*
+ * This file is part of sebastian/comparator.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace SebastianBergmann\Comparator;
+
+use PHPUnit\Framework\TestCase;
+
+/**
+ * @covers \SebastianBergmann\Comparator\NumericComparator<extended>
+ *
+ * @uses \SebastianBergmann\Comparator\Comparator
+ * @uses \SebastianBergmann\Comparator\Factory
+ * @uses \SebastianBergmann\Comparator\ComparisonFailure
+ */
+final class NumericComparatorTest extends TestCase
+{
+    /**
+     * @var NumericComparator
+     */
+    private $comparator;
+
+    protected function setUp(): void
+    {
+        $this->comparator = new NumericComparator;
+    }
+
+    public function acceptsSucceedsProvider()
+    {
+        return [
+            [5, 10],
+            [8, '0'],
+            ['10', 0],
+            [0x74c3b00c, 42],
+            [0755, 0777]
+        ];
+    }
+
+    public function acceptsFailsProvider()
+    {
+        return [
+            ['5', '10'],
+            [8, 5.0],
+            [5.0, 8],
+            [10, null],
+            [false, 12]
+        ];
+    }
+
+    public function assertEqualsSucceedsProvider()
+    {
+        return [
+            [1337, 1337],
+            ['1337', 1337],
+            [0x539, 1337],
+            [02471, 1337],
+            [1337, 1338, 1],
+            ['1337', 1340, 5],
+        ];
+    }
+
+    public function assertEqualsFailsProvider()
+    {
+        return [
+            [1337, 1338],
+            ['1338', 1337],
+            [0x539, 1338],
+            [1337, 1339, 1],
+            ['1337', 1340, 2],
+        ];
+    }
+
+    /**
+     * @dataProvider acceptsSucceedsProvider
+     */
+    public function testAcceptsSucceeds($expected, $actual): void
+    {
+        $this->assertTrue(
+          $this->comparator->accepts($expected, $actual)
+        );
+    }
+
+    /**
+     * @dataProvider acceptsFailsProvider
+     */
+    public function testAcceptsFails($expected, $actual): void
+    {
+        $this->assertFalse(
+          $this->comparator->accepts($expected, $actual)
+        );
+    }
+
+    /**
+     * @dataProvider assertEqualsSucceedsProvider
+     */
+    public function testAssertEqualsSucceeds($expected, $actual, $delta = 0.0): void
+    {
+        $exception = null;
+
+        try {
+            $this->comparator->assertEquals($expected, $actual, $delta);
+        } catch (ComparisonFailure $exception) {
+        }
+
+        $this->assertNull($exception, 'Unexpected ComparisonFailure');
+    }
+
+    /**
+     * @dataProvider assertEqualsFailsProvider
+     */
+    public function testAssertEqualsFails($expected, $actual, $delta = 0.0): void
+    {
+        $this->expectException(ComparisonFailure::class);
+        $this->expectExceptionMessage('matches expected');
+
+        $this->comparator->assertEquals($expected, $actual, $delta);
+    }
+}

vendor/sebastian/comparator/tests/ObjectComparatorTest.php

@@ -0,0 +1,150 @@
+<?php
+/*
+ * This file is part of sebastian/comparator.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace SebastianBergmann\Comparator;
+
+use PHPUnit\Framework\TestCase;
+use stdClass;
+
+/**
+ * @covers \SebastianBergmann\Comparator\ObjectComparator<extended>
+ *
+ * @uses \SebastianBergmann\Comparator\Comparator
+ * @uses \SebastianBergmann\Comparator\Factory
+ * @uses \SebastianBergmann\Comparator\ComparisonFailure
+ */
+final class ObjectComparatorTest extends TestCase
+{
+    /**
+     * @var ObjectComparator
+     */
+    private $comparator;
+
+    protected function setUp(): void
+    {
+        $this->comparator = new ObjectComparator;
+        $this->comparator->setFactory(new Factory);
+    }
+
+    public function acceptsSucceedsProvider()
+    {
+        return [
+            [new TestClass, new TestClass],
+            [new stdClass, new stdClass],
+            [new stdClass, new TestClass]
+        ];
+    }
+
+    public function acceptsFailsProvider()
+    {
+        return [
+            [new stdClass, null],
+            [null, new stdClass],
+            [null, null]
+        ];
+    }
+
+    public function assertEqualsSucceedsProvider()
+    {
+        // cyclic dependencies
+        $book1                  = new Book;
+        $book1->author          = new Author('Terry Pratchett');
+        $book1->author->books[] = $book1;
+        $book2                  = new Book;
+        $book2->author          = new Author('Terry Pratchett');
+        $book2->author->books[] = $book2;
+
+        $object1 = new SampleClass(4, 8, 15);
+        $object2 = new SampleClass(4, 8, 15);
+
+        return [
+            [$object1, $object1],
+            [$object1, $object2],
+            [$book1, $book1],
+            [$book1, $book2],
+            [new Struct(2.3), new Struct(2.5), 0.5]
+        ];
+    }
+
+    public function assertEqualsFailsProvider()
+    {
+        $typeMessage  = 'is not instance of expected class';
+        $equalMessage = 'Failed asserting that two objects are equal.';
+
+        // cyclic dependencies
+        $book1                  = new Book;
+        $book1->author          = new Author('Terry Pratchett');
+        $book1->author->books[] = $book1;
+        $book2                  = new Book;
+        $book2->author          = new Author('Terry Pratch');
+        $book2->author->books[] = $book2;
+
+        $book3         = new Book;
+        $book3->author = 'Terry Pratchett';
+        $book4         = new stdClass;
+        $book4->author = 'Terry Pratchett';
+
+        $object1 = new SampleClass(4, 8, 15);
+        $object2 = new SampleClass(16, 23, 42);
+
+        return [
+            [new SampleClass(4, 8, 15), new SampleClass(16, 23, 42), $equalMessage],
+            [$object1, $object2, $equalMessage],
+            [$book1, $book2, $equalMessage],
+            [$book3, $book4, $typeMessage],
+            [new Struct(2.3), new Struct(4.2), $equalMessage, 0.5]
+        ];
+    }
+
+    /**
+     * @dataProvider acceptsSucceedsProvider
+     */
+    public function testAcceptsSucceeds($expected, $actual): void
+    {
+        $this->assertTrue(
+          $this->comparator->accepts($expected, $actual)
+        );
+    }
+
+    /**
+     * @dataProvider acceptsFailsProvider
+     */
+    public function testAcceptsFails($expected, $actual): void
+    {
+        $this->assertFalse(
+          $this->comparator->accepts($expected, $actual)
+        );
+    }
+
+    /**
+     * @dataProvider assertEqualsSucceedsProvider
+     */
+    public function testAssertEqualsSucceeds($expected, $actual, $delta = 0.0): void
+    {
+        $exception = null;
+
+        try {
+            $this->comparator->assertEquals($expected, $actual, $delta);
+        } catch (ComparisonFailure $exception) {
+        }
+
+        $this->assertNull($exception, 'Unexpected ComparisonFailure');
+    }
+
+    /**
+     * @dataProvider assertEqualsFailsProvider
+     */
+    public function testAssertEqualsFails($expected, $actual, $message, $delta = 0.0): void
+    {
+        $this->expectException(ComparisonFailure::class);
+        $this->expectExceptionMessage($message);
+
+        $this->comparator->assertEquals($expected, $actual, $delta);
+    }
+}

vendor/sebastian/comparator/tests/ResourceComparatorTest.php

@@ -0,0 +1,122 @@
+<?php
+/*
+ * This file is part of sebastian/comparator.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace SebastianBergmann\Comparator;
+
+use PHPUnit\Framework\TestCase;
+
+/**
+ * @covers \SebastianBergmann\Comparator\ResourceComparator<extended>
+ *
+ * @uses \SebastianBergmann\Comparator\Comparator
+ * @uses \SebastianBergmann\Comparator\Factory
+ * @uses \SebastianBergmann\Comparator\ComparisonFailure
+ */
+final class ResourceComparatorTest extends TestCase
+{
+    /**
+     * @var ResourceComparator
+     */
+    private $comparator;
+
+    protected function setUp(): void
+    {
+        $this->comparator = new ResourceComparator;
+    }
+
+    public function acceptsSucceedsProvider()
+    {
+        $tmpfile1 = \tmpfile();
+        $tmpfile2 = \tmpfile();
+
+        return [
+            [$tmpfile1, $tmpfile1],
+            [$tmpfile2, $tmpfile2],
+            [$tmpfile1, $tmpfile2]
+        ];
+    }
+
+    public function acceptsFailsProvider()
+    {
+        $tmpfile1 = \tmpfile();
+
+        return [
+            [$tmpfile1, null],
+            [null, $tmpfile1],
+            [null, null]
+        ];
+    }
+
+    public function assertEqualsSucceedsProvider()
+    {
+        $tmpfile1 = \tmpfile();
+        $tmpfile2 = \tmpfile();
+
+        return [
+            [$tmpfile1, $tmpfile1],
+            [$tmpfile2, $tmpfile2]
+        ];
+    }
+
+    public function assertEqualsFailsProvider()
+    {
+        $tmpfile1 = \tmpfile();
+        $tmpfile2 = \tmpfile();
+
+        return [
+            [$tmpfile1, $tmpfile2],
+            [$tmpfile2, $tmpfile1]
+        ];
+    }
+
+    /**
+     * @dataProvider acceptsSucceedsProvider
+     */
+    public function testAcceptsSucceeds($expected, $actual): void
+    {
+        $this->assertTrue(
+          $this->comparator->accepts($expected, $actual)
+        );
+    }
+
+    /**
+     * @dataProvider acceptsFailsProvider
+     */
+    public function testAcceptsFails($expected, $actual): void
+    {
+        $this->assertFalse(
+          $this->comparator->accepts($expected, $actual)
+        );
+    }
+
+    /**
+     * @dataProvider assertEqualsSucceedsProvider
+     */
+    public function testAssertEqualsSucceeds($expected, $actual): void
+    {
+        $exception = null;
+
+        try {
+            $this->comparator->assertEquals($expected, $actual);
+        } catch (ComparisonFailure $exception) {
+        }
+
+        $this->assertNull($exception, 'Unexpected ComparisonFailure');
+    }
+
+    /**
+     * @dataProvider assertEqualsFailsProvider
+     */
+    public function testAssertEqualsFails($expected, $actual): void
+    {
+        $this->expectException(ComparisonFailure::class);
+
+        $this->comparator->assertEquals($expected, $actual);
+    }
+}

vendor/sebastian/comparator/tests/ScalarComparatorTest.php

@@ -0,0 +1,164 @@
+<?php
+/*
+ * This file is part of sebastian/comparator.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace SebastianBergmann\Comparator;
+
+use PHPUnit\Framework\TestCase;
+
+/**
+ * @covers \SebastianBergmann\Comparator\ScalarComparator<extended>
+ *
+ * @uses \SebastianBergmann\Comparator\Comparator
+ * @uses \SebastianBergmann\Comparator\Factory
+ * @uses \SebastianBergmann\Comparator\ComparisonFailure
+ */
+final class ScalarComparatorTest extends TestCase
+{
+    /**
+     * @var ScalarComparator
+     */
+    private $comparator;
+
+    protected function setUp(): void
+    {
+        $this->comparator = new ScalarComparator;
+    }
+
+    public function acceptsSucceedsProvider()
+    {
+        return [
+            ['string', 'string'],
+            [new ClassWithToString, 'string'],
+            ['string', new ClassWithToString],
+            ['string', null],
+            [false, 'string'],
+            [false, true],
+            [null, false],
+            [null, null],
+            ['10', 10],
+            ['', false],
+            ['1', true],
+            [1, true],
+            [0, false],
+            [0.1, '0.1']
+        ];
+    }
+
+    public function acceptsFailsProvider()
+    {
+        return [
+            [[], []],
+            ['string', []],
+            [new ClassWithToString, new ClassWithToString],
+            [false, new ClassWithToString],
+            [\tmpfile(), \tmpfile()]
+        ];
+    }
+
+    public function assertEqualsSucceedsProvider()
+    {
+        return [
+            ['string', 'string'],
+            [new ClassWithToString, new ClassWithToString],
+            ['string representation', new ClassWithToString],
+            [new ClassWithToString, 'string representation'],
+            ['string', 'STRING', true],
+            ['STRING', 'string', true],
+            ['String Representation', new ClassWithToString, true],
+            [new ClassWithToString, 'String Representation', true],
+            ['10', 10],
+            ['', false],
+            ['1', true],
+            [1, true],
+            [0, false],
+            [0.1, '0.1'],
+            [false, null],
+            [false, false],
+            [true, true],
+            [null, null]
+        ];
+    }
+
+    public function assertEqualsFailsProvider()
+    {
+        $stringException = 'Failed asserting that two strings are equal.';
+        $otherException  = 'matches expected';
+
+        return [
+            ['string', 'other string', $stringException],
+            ['string', 'STRING', $stringException],
+            ['STRING', 'string', $stringException],
+            ['string', 'other string', $stringException],
+            // https://github.com/sebastianbergmann/phpunit/issues/1023
+            ['9E6666666', '9E7777777', $stringException],
+            [new ClassWithToString, 'does not match', $otherException],
+            ['does not match', new ClassWithToString, $otherException],
+            [0, 'Foobar', $otherException],
+            ['Foobar', 0, $otherException],
+            ['10', 25, $otherException],
+            ['1', false, $otherException],
+            ['', true, $otherException],
+            [false, true, $otherException],
+            [true, false, $otherException],
+            [null, true, $otherException],
+            [0, true, $otherException],
+            ['0', '0.0', $stringException],
+            ['0.', '0.0', $stringException],
+            ['0e1', '0e2', $stringException],
+            ["\n\n\n0.0", '                   0.', $stringException],
+            ['0.0', '25e-10000', $stringException],
+        ];
+    }
+
+    /**
+     * @dataProvider acceptsSucceedsProvider
+     */
+    public function testAcceptsSucceeds($expected, $actual): void
+    {
+        $this->assertTrue(
+          $this->comparator->accepts($expected, $actual)
+        );
+    }
+
+    /**
+     * @dataProvider acceptsFailsProvider
+     */
+    public function testAcceptsFails($expected, $actual): void
+    {
+        $this->assertFalse(
+          $this->comparator->accepts($expected, $actual)
+        );
+    }
+
+    /**
+     * @dataProvider assertEqualsSucceedsProvider
+     */
+    public function testAssertEqualsSucceeds($expected, $actual, $ignoreCase = false): void
+    {
+        $exception = null;
+
+        try {
+            $this->comparator->assertEquals($expected, $actual, 0.0, false, $ignoreCase);
+        } catch (ComparisonFailure $exception) {
+        }
+
+        $this->assertNull($exception, 'Unexpected ComparisonFailure');
+    }
+
+    /**
+     * @dataProvider assertEqualsFailsProvider
+     */
+    public function testAssertEqualsFails($expected, $actual, $message): void
+    {
+        $this->expectException(ComparisonFailure::class);
+        $this->expectExceptionMessage($message);
+
+        $this->comparator->assertEquals($expected, $actual);
+    }
+}

vendor/sebastian/comparator/tests/SplObjectStorageComparatorTest.php

@@ -0,0 +1,145 @@
+<?php
+/*
+ * This file is part of sebastian/comparator.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace SebastianBergmann\Comparator;
+
+use PHPUnit\Framework\TestCase;
+use SplObjectStorage;
+use stdClass;
+
+/**
+ * @covers \SebastianBergmann\Comparator\SplObjectStorageComparator<extended>
+ *
+ * @uses \SebastianBergmann\Comparator\Comparator
+ * @uses \SebastianBergmann\Comparator\Factory
+ * @uses \SebastianBergmann\Comparator\ComparisonFailure
+ */
+final class SplObjectStorageComparatorTest extends TestCase
+{
+    /**
+     * @var SplObjectStorageComparator
+     */
+    private $comparator;
+
+    protected function setUp(): void
+    {
+        $this->comparator = new SplObjectStorageComparator;
+    }
+
+    public function acceptsFailsProvider()
+    {
+        return [
+            [new SplObjectStorage, new stdClass],
+            [new stdClass, new SplObjectStorage],
+            [new stdClass, new stdClass]
+        ];
+    }
+
+    public function assertEqualsSucceedsProvider()
+    {
+        $object1 = new stdClass();
+        $object2 = new stdClass();
+
+        $storage1 = new SplObjectStorage();
+        $storage2 = new SplObjectStorage();
+
+        $storage3 = new SplObjectStorage();
+        $storage3->attach($object1);
+        $storage3->attach($object2);
+
+        $storage4 = new SplObjectStorage();
+        $storage4->attach($object2);
+        $storage4->attach($object1);
+
+        return [
+            [$storage1, $storage1],
+            [$storage1, $storage2],
+            [$storage3, $storage3],
+            [$storage3, $storage4]
+        ];
+    }
+
+    public function assertEqualsFailsProvider()
+    {
+        $object1 = new stdClass;
+        $object2 = new stdClass;
+
+        $storage1 = new SplObjectStorage;
+
+        $storage2 = new SplObjectStorage;
+        $storage2->attach($object1);
+
+        $storage3 = new SplObjectStorage;
+        $storage3->attach($object2);
+        $storage3->attach($object1);
+
+        return [
+            [$storage1, $storage2],
+            [$storage1, $storage3],
+            [$storage2, $storage3],
+        ];
+    }
+
+    public function testAcceptsSucceeds(): void
+    {
+        $this->assertTrue(
+          $this->comparator->accepts(
+            new SplObjectStorage,
+            new SplObjectStorage
+          )
+        );
+    }
+
+    /**
+     * @dataProvider acceptsFailsProvider
+     */
+    public function testAcceptsFails($expected, $actual): void
+    {
+        $this->assertFalse(
+          $this->comparator->accepts($expected, $actual)
+        );
+    }
+
+    /**
+     * @dataProvider assertEqualsSucceedsProvider
+     */
+    public function testAssertEqualsSucceeds($expected, $actual): void
+    {
+        $exception = null;
+
+        try {
+            $this->comparator->assertEquals($expected, $actual);
+        } catch (ComparisonFailure $exception) {
+        }
+
+        $this->assertNull($exception, 'Unexpected ComparisonFailure');
+    }
+
+    /**
+     * @dataProvider assertEqualsFailsProvider
+     */
+    public function testAssertEqualsFails($expected, $actual): void
+    {
+        $this->expectException(ComparisonFailure::class);
+        $this->expectExceptionMessage('Failed asserting that two objects are equal.');
+
+        $this->comparator->assertEquals($expected, $actual);
+    }
+
+    public function testAssertEqualsFails2(): void
+    {
+        $this->expectException(ComparisonFailure::class);
+        $this->expectExceptionMessage('Failed asserting that two objects are equal.');
+
+        $t = new SplObjectStorage();
+        $t->attach(new \stdClass());
+
+        $this->comparator->assertEquals($t, new \SplObjectStorage());
+    }
+}

vendor/sebastian/comparator/tests/TypeComparatorTest.php

@@ -0,0 +1,107 @@
+<?php
+/*
+ * This file is part of sebastian/comparator.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace SebastianBergmann\Comparator;
+
+use PHPUnit\Framework\TestCase;
+use stdClass;
+
+/**
+ * @covers \SebastianBergmann\Comparator\TypeComparator<extended>
+ *
+ * @uses \SebastianBergmann\Comparator\Comparator
+ * @uses \SebastianBergmann\Comparator\Factory
+ * @uses \SebastianBergmann\Comparator\ComparisonFailure
+ */
+final class TypeComparatorTest extends TestCase
+{
+    /**
+     * @var TypeComparator
+     */
+    private $comparator;
+
+    protected function setUp(): void
+    {
+        $this->comparator = new TypeComparator;
+    }
+
+    public function acceptsSucceedsProvider()
+    {
+        return [
+            [true, 1],
+            [false, [1]],
+            [null, new stdClass],
+            [1.0, 5],
+            ['', '']
+        ];
+    }
+
+    public function assertEqualsSucceedsProvider()
+    {
+        return [
+            [true, true],
+            [true, false],
+            [false, false],
+            [null, null],
+            [new stdClass, new stdClass],
+            [0, 0],
+            [1.0, 2.0],
+            ['hello', 'world'],
+            ['', ''],
+            [[], [1, 2, 3]]
+        ];
+    }
+
+    public function assertEqualsFailsProvider()
+    {
+        return [
+            [true, null],
+            [null, false],
+            [1.0, 0],
+            [new stdClass, []],
+            ['1', 1]
+        ];
+    }
+
+    /**
+     * @dataProvider acceptsSucceedsProvider
+     */
+    public function testAcceptsSucceeds($expected, $actual): void
+    {
+        $this->assertTrue(
+          $this->comparator->accepts($expected, $actual)
+        );
+    }
+
+    /**
+     * @dataProvider assertEqualsSucceedsProvider
+     */
+    public function testAssertEqualsSucceeds($expected, $actual): void
+    {
+        $exception = null;
+
+        try {
+            $this->comparator->assertEquals($expected, $actual);
+        } catch (ComparisonFailure $exception) {
+        }
+
+        $this->assertNull($exception, 'Unexpected ComparisonFailure');
+    }
+
+    /**
+     * @dataProvider assertEqualsFailsProvider
+     */
+    public function testAssertEqualsFails($expected, $actual): void
+    {
+        $this->expectException(ComparisonFailure::class);
+        $this->expectExceptionMessage('does not match expected type');
+
+        $this->comparator->assertEquals($expected, $actual);
+    }
+}

vendor/sebastian/comparator/tests/_fixture/Author.php

@@ -0,0 +1,26 @@
+<?php
+/*
+ * This file is part of sebastian/comparator.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace SebastianBergmann\Comparator;
+
+/**
+ * An author.
+ */
+class Author
+{
+    // the order of properties is important for testing the cycle!
+    public $books = [];
+
+    private $name = '';
+
+    public function __construct($name)
+    {
+        $this->name = $name;
+    }
+}

vendor/sebastian/comparator/tests/_fixture/Book.php

@@ -0,0 +1,19 @@
+<?php
+/*
+ * This file is part of sebastian/comparator.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace SebastianBergmann\Comparator;
+
+/**
+ * A book.
+ */
+class Book
+{
+    // the order of properties is important for testing the cycle!
+    public $author;
+}

vendor/sebastian/comparator/tests/_fixture/ClassWithToString.php

@@ -0,0 +1,18 @@
+<?php
+/*
+ * This file is part of sebastian/comparator.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace SebastianBergmann\Comparator;
+
+class ClassWithToString
+{
+    public function __toString()
+    {
+        return 'string representation';
+    }
+}

vendor/sebastian/comparator/tests/_fixture/SampleClass.php

@@ -0,0 +1,29 @@
+<?php
+/*
+ * This file is part of sebastian/comparator.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace SebastianBergmann\Comparator;
+
+/**
+ * A sample class.
+ */
+class SampleClass
+{
+    public $a;
+
+    protected $b;
+
+    protected $c;
+
+    public function __construct($a, $b, $c)
+    {
+        $this->a = $a;
+        $this->b = $b;
+        $this->c = $c;
+    }
+}

vendor/sebastian/comparator/tests/_fixture/Struct.php

@@ -0,0 +1,23 @@
+<?php
+/*
+ * This file is part of sebastian/comparator.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace SebastianBergmann\Comparator;
+
+/**
+ * A struct.
+ */
+class Struct
+{
+    public $var;
+
+    public function __construct($var)
+    {
+        $this->var = $var;
+    }
+}

vendor/sebastian/comparator/tests/_fixture/TestClass.php

@@ -0,0 +1,14 @@
+<?php
+/*
+ * This file is part of sebastian/comparator.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace SebastianBergmann\Comparator;
+
+class TestClass
+{
+}

vendor/sebastian/comparator/tests/_fixture/TestClassComparator.php

@@ -0,0 +1,14 @@
+<?php
+/*
+ * This file is part of sebastian/comparator.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace SebastianBergmann\Comparator;
+
+class TestClassComparator extends ObjectComparator
+{
+}

vendor/sebastian/diff/.github/stale.yml

@@ -0,0 +1,40 @@
+# Configuration for probot-stale - https://github.com/probot/stale
+
+# Number of days of inactivity before an Issue or Pull Request becomes stale
+daysUntilStale: 60
+
+# Number of days of inactivity before a stale Issue or Pull Request is closed.
+# Set to false to disable. If disabled, issues still need to be closed manually, but will remain marked as stale.
+daysUntilClose: 7
+
+# Issues or Pull Requests with these labels will never be considered stale. Set to `[]` to disable
+exemptLabels:
+  - enhancement
+
+# Set to true to ignore issues in a project (defaults to false)
+exemptProjects: false
+
+# Set to true to ignore issues in a milestone (defaults to false)
+exemptMilestones: false
+
+# Label to use when marking as stale
+staleLabel: wontfix
+
+# Comment to post when marking as stale. Set to `false` to disable
+markComment: >
+  This issue has been automatically marked as stale because it has not had activity within the last 60 days. It will be closed after 7 days if no further activity occurs. Thank you for your contributions.
+
+# Comment to post when removing the stale label.
+# unmarkComment: >
+#   Your comment here.
+
+# Comment to post when closing a stale Issue or Pull Request.
+closeComment: >
+  This issue has been automatically closed because it has not had activity since it was marked as stale. Thank you for your contributions.
+
+# Limit the number of actions per hour, from 1-30. Default is 30
+limitPerRun: 30
+
+# Limit to only `issues` or `pulls`
+only: issues
+

vendor/sebastian/diff/.gitignore

@@ -0,0 +1,6 @@
+/.idea
+/composer.lock
+/vendor
+/.php_cs.cache
+/.phpunit.result.cache
+/from.txt.orig

vendor/sebastian/diff/.php_cs.dist

@@ -0,0 +1,168 @@
+<?php declare(strict_types=1);
+$header = <<<'EOF'
+This file is part of sebastian/diff.
+
+(c) Sebastian Bergmann <sebastian@phpunit.de>
+
+For the full copyright and license information, please view the LICENSE
+file that was distributed with this source code.
+EOF;
+
+return PhpCsFixer\Config::create()
+    ->setRiskyAllowed(true)
+    ->setRules(
+        [
+            'array_syntax' => ['syntax' => 'short'],
+            'binary_operator_spaces' => [
+                'operators' => [
+                    '=' => 'align',
+                    '=>' => 'align',
+                ],
+            ],
+            'blank_line_after_namespace' => true,
+            'blank_line_before_statement' => [
+                'statements' => [
+                    'break',
+                    'continue',
+                    'declare',
+                    'do',
+                    'for',
+                    'foreach',
+                    'if',
+                    'include',
+                    'include_once',
+                    'require',
+                    'require_once',
+                    'return',
+                    'switch',
+                    'throw',
+                    'try',
+                    'while',
+                    'yield',
+                ],
+            ],
+            'braces' => true,
+            'cast_spaces' => true,
+            'class_attributes_separation' => ['elements' => ['method']],
+            'compact_nullable_typehint' => true,
+            'concat_space' => ['spacing' => 'one'],
+            'declare_equal_normalize' => ['space' => 'none'],
+            'declare_strict_types' => true,
+            'dir_constant' => true,
+            'elseif' => true,
+            'encoding' => true,
+            'full_opening_tag' => true,
+            'function_declaration' => true,
+            'header_comment' => ['header' => $header, 'separate' => 'none'],
+            'indentation_type' => true,
+            'line_ending' => true,
+            'list_syntax' => ['syntax' => 'short'],
+            'lowercase_cast' => true,
+            'lowercase_constants' => true,
+            'lowercase_keywords' => true,
+            'magic_constant_casing' => true,
+            'method_argument_space' => ['ensure_fully_multiline' => true],
+            'modernize_types_casting' => true,
+            'native_function_casing' => true,
+            'native_function_invocation' => true,
+            'no_alias_functions' => true,
+            'no_blank_lines_after_class_opening' => true,
+            'no_blank_lines_after_phpdoc' => true,
+            'no_closing_tag' => true,
+            'no_empty_comment' => true,
+            'no_empty_phpdoc' => true,
+            'no_empty_statement' => true,
+            'no_extra_blank_lines' => true,
+            'no_homoglyph_names' => true,
+            'no_leading_import_slash' => true,
+            'no_leading_namespace_whitespace' => true,
+            'no_mixed_echo_print' => ['use' => 'print'],
+            'no_null_property_initialization' => true,
+            'no_short_bool_cast' => true,
+            'no_short_echo_tag' => true,
+            'no_singleline_whitespace_before_semicolons' => true,
+            'no_spaces_after_function_name' => true,
+            'no_spaces_inside_parenthesis' => true,
+            'no_superfluous_elseif' => true,
+            'no_trailing_comma_in_list_call' => true,
+            'no_trailing_comma_in_singleline_array' => true,
+            'no_trailing_whitespace' => true,
+            'no_trailing_whitespace_in_comment' => true,
+            'no_unneeded_control_parentheses' => true,
+            'no_unneeded_curly_braces' => true,
+            'no_unneeded_final_method' => true,
+            'no_unreachable_default_argument_value' => true,
+            'no_unused_imports' => true,
+            'no_useless_else' => true,
+            'no_whitespace_before_comma_in_array' => true,
+            'no_whitespace_in_blank_line' => true,
+            'non_printable_character' => true,
+            'normalize_index_brace' => true,
+            'object_operator_without_whitespace' => true,
+            'ordered_class_elements' => [
+                'order' => [
+                    'use_trait',
+                    'constant_public',
+                    'constant_protected',
+                    'constant_private',
+                    'property_public_static',
+                    'property_protected_static',
+                    'property_private_static',
+                    'property_public',
+                    'property_protected',
+                    'property_private',
+                    'method_public_static',
+                    'construct',
+                    'destruct',
+                    'magic',
+                    'phpunit',
+                    'method_public',
+                    'method_protected',
+                    'method_private',
+                    'method_protected_static',
+                    'method_private_static',
+                ],
+            ],
+            'ordered_imports' => true,
+            'phpdoc_add_missing_param_annotation' => true,
+            'phpdoc_align' => true,
+            'phpdoc_annotation_without_dot' => true,
+            'phpdoc_indent' => true,
+            'phpdoc_no_access' => true,
+            'phpdoc_no_empty_return' => true,
+            'phpdoc_no_package' => true,
+            'phpdoc_order' => true,
+            'phpdoc_return_self_reference' => true,
+            'phpdoc_scalar' => true,
+            'phpdoc_separation' => true,
+            'phpdoc_single_line_var_spacing' => true,
+            'phpdoc_to_comment' => true,
+            'phpdoc_trim' => true,
+            'phpdoc_types' => true,
+            'phpdoc_types_order' => true,
+            'phpdoc_var_without_name' => true,
+            'pow_to_exponentiation' => true,
+            'protected_to_private' => true,
+            'return_type_declaration' => ['space_before' => 'none'],
+            'self_accessor' => true,
+            'short_scalar_cast' => true,
+            'simplified_null_return' => true,
+            'single_blank_line_at_eof' => true,
+            'single_import_per_statement' => true,
+            'single_line_after_imports' => true,
+            'single_quote' => true,
+            'standardize_not_equals' => true,
+            'ternary_to_null_coalescing' => true,
+            'trim_array_spaces' => true,
+            'unary_operator_spaces' => true,
+            'visibility_required' => true,
+            'void_return' => true,
+            'whitespace_after_comma_in_array' => true,
+        ]
+    )
+    ->setFinder(
+        PhpCsFixer\Finder::create()
+        ->files()
+        ->in(__DIR__ . '/src')
+        ->in(__DIR__ . '/tests')
+    );

vendor/sebastian/diff/.travis.yml

@@ -0,0 +1,26 @@
+language: php
+
+php:
+  - 7.1
+  - 7.2
+  - 7.3
+  - master
+
+sudo: false
+
+before_install:
+  - composer self-update
+  - composer clear-cache
+
+install:
+  - travis_retry composer update --no-interaction --no-ansi --no-progress --no-suggest --optimize-autoloader --prefer-stable
+
+script:
+  - ./vendor/bin/phpunit --coverage-clover=coverage.xml
+
+after_success:
+  - bash <(curl -s https://codecov.io/bash)
+
+notifications:
+  email: false
+

vendor/sebastian/diff/ChangeLog.md

@@ -0,0 +1,53 @@
+# ChangeLog
+
+All notable changes are documented in this file using the [Keep a CHANGELOG](http://keepachangelog.com/) principles.
+
+## [3.0.2] - 2019-02-04
+
+### Changed
+
+* `Chunk::setLines()` now ensures that the `$lines` array only contains `Line` objects
+
+## [3.0.1] - 2018-06-10
+
+### Fixed
+
+* Removed `"minimum-stability": "dev",` from `composer.json`
+
+## [3.0.0] - 2018-02-01
+
+* The `StrictUnifiedDiffOutputBuilder` implementation of the `DiffOutputBuilderInterface` was added
+
+### Changed
+
+* The default `DiffOutputBuilderInterface` implementation now generates context lines (unchanged lines)
+
+### Removed
+
+* Removed support for PHP 7.0
+
+### Fixed
+
+* Fixed [#70](https://github.com/sebastianbergmann/diff/issues/70): Diffing of arrays no longer works
+
+## [2.0.1] - 2017-08-03
+
+### Fixed
+
+* Fixed [#66](https://github.com/sebastianbergmann/diff/pull/66): Restored backwards compatibility for PHPUnit 6.1.4, 6.2.0, 6.2.1, 6.2.2, and 6.2.3
+
+## [2.0.0] - 2017-07-11 [YANKED]
+
+### Added
+
+* Implemented [#64](https://github.com/sebastianbergmann/diff/pull/64): Show line numbers for chunks of a diff
+
+### Removed
+
+* This component is no longer supported on PHP 5.6
+
+[3.0.2]: https://github.com/sebastianbergmann/diff/compare/3.0.1...3.0.2
+[3.0.1]: https://github.com/sebastianbergmann/diff/compare/3.0.0...3.0.1
+[3.0.0]: https://github.com/sebastianbergmann/diff/compare/2.0...3.0.0
+[2.0.1]: https://github.com/sebastianbergmann/diff/compare/c341c98ce083db77f896a0aa64f5ee7652915970...2.0.1
+[2.0.0]: https://github.com/sebastianbergmann/diff/compare/1.4...c341c98ce083db77f896a0aa64f5ee7652915970

vendor/sebastian/diff/LICENSE

@@ -0,0 +1,33 @@
+sebastian/diff
+
+Copyright (c) 2002-2019, Sebastian Bergmann <sebastian@phpunit.de>.
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+
+ * Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+
+ * Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in
+   the documentation and/or other materials provided with the
+   distribution.
+
+ * Neither the name of Sebastian Bergmann nor the names of his
+   contributors may be used to endorse or promote products derived
+   from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.

vendor/sebastian/diff/README.md

@@ -0,0 +1,195 @@
+# sebastian/diff
+
+Diff implementation for PHP, factored out of PHPUnit into a stand-alone component.
+
+## Installation
+
+You can add this library as a local, per-project dependency to your project using [Composer](https://getcomposer.org/):
+
+    composer require sebastian/diff
+
+If you only need this library during development, for instance to run your project's test suite, then you should add it as a development-time dependency:
+
+    composer require --dev sebastian/diff
+
+### Usage
+
+#### Generating diff
+
+The `Differ` class can be used to generate a textual representation of the difference between two strings:
+
+```php
+<?php
+use SebastianBergmann\Diff\Differ;
+
+$differ = new Differ;
+print $differ->diff('foo', 'bar');
+```
+
+The code above yields the output below:
+```diff
+--- Original
++++ New
+@@ @@
+-foo
++bar
+```
+
+There are three output builders available in this package:
+
+#### UnifiedDiffOutputBuilder 
+
+This is default builder, which generates the output close to udiff and is used by PHPUnit.
+
+```php
+<?php
+
+use SebastianBergmann\Diff\Differ;
+use SebastianBergmann\Diff\Output\UnifiedDiffOutputBuilder;
+
+$builder = new UnifiedDiffOutputBuilder(
+    "--- Original\n+++ New\n", // custom header
+    false                      // do not add line numbers to the diff 
+);
+
+$differ = new Differ($builder);
+print $differ->diff('foo', 'bar');
+```
+
+#### StrictUnifiedDiffOutputBuilder
+
+Generates (strict) Unified diff's (unidiffs) with hunks,
+similar to `diff -u` and compatible with `patch` and `git apply`.
+
+```php
+<?php
+
+use SebastianBergmann\Diff\Differ;
+use SebastianBergmann\Diff\Output\StrictUnifiedDiffOutputBuilder;
+
+$builder = new StrictUnifiedDiffOutputBuilder([
+    'collapseRanges'      => true, // ranges of length one are rendered with the trailing `,1`
+    'commonLineThreshold' => 6,    // number of same lines before ending a new hunk and creating a new one (if needed)
+    'contextLines'        => 3,    // like `diff:  -u, -U NUM, --unified[=NUM]`, for patch/git apply compatibility best to keep at least @ 3
+    'fromFile'            => null,
+    'fromFileDate'        => null,
+    'toFile'              => null,
+    'toFileDate'          => null,
+]);
+
+$differ = new Differ($builder);
+print $differ->diff('foo', 'bar');
+```
+
+#### DiffOnlyOutputBuilder
+
+Output only the lines that differ.
+
+```php
+<?php
+
+use SebastianBergmann\Diff\Differ;
+use SebastianBergmann\Diff\Output\DiffOnlyOutputBuilder;
+
+$builder = new DiffOnlyOutputBuilder(
+    "--- Original\n+++ New\n"
+);
+
+$differ = new Differ($builder);
+print $differ->diff('foo', 'bar');
+```
+
+#### DiffOutputBuilderInterface
+
+You can pass any output builder to the `Differ` class as longs as it implements the `DiffOutputBuilderInterface`. 
+
+#### Parsing diff
+
+The `Parser` class can be used to parse a unified diff into an object graph:
+
+```php
+use SebastianBergmann\Diff\Parser;
+use SebastianBergmann\Git;
+
+$git = new Git('/usr/local/src/money');
+
+$diff = $git->getDiff(
+  '948a1a07768d8edd10dcefa8315c1cbeffb31833',
+  'c07a373d2399f3e686234c4f7f088d635eb9641b'
+);
+
+$parser = new Parser;
+
+print_r($parser->parse($diff));
+```
+
+The code above yields the output below:
+
+    Array
+    (
+        [0] => SebastianBergmann\Diff\Diff Object
+            (
+                [from:SebastianBergmann\Diff\Diff:private] => a/tests/MoneyTest.php
+                [to:SebastianBergmann\Diff\Diff:private] => b/tests/MoneyTest.php
+                [chunks:SebastianBergmann\Diff\Diff:private] => Array
+                    (
+                        [0] => SebastianBergmann\Diff\Chunk Object
+                            (
+                                [start:SebastianBergmann\Diff\Chunk:private] => 87
+                                [startRange:SebastianBergmann\Diff\Chunk:private] => 7
+                                [end:SebastianBergmann\Diff\Chunk:private] => 87
+                                [endRange:SebastianBergmann\Diff\Chunk:private] => 7
+                                [lines:SebastianBergmann\Diff\Chunk:private] => Array
+                                    (
+                                        [0] => SebastianBergmann\Diff\Line Object
+                                            (
+                                                [type:SebastianBergmann\Diff\Line:private] => 3
+                                                [content:SebastianBergmann\Diff\Line:private] =>      * @covers SebastianBergmann\Money\Money::add
+                                            )
+
+                                        [1] => SebastianBergmann\Diff\Line Object
+                                            (
+                                                [type:SebastianBergmann\Diff\Line:private] => 3
+                                                [content:SebastianBergmann\Diff\Line:private] =>      * @covers SebastianBergmann\Money\Money::newMoney
+                                            )
+
+                                        [2] => SebastianBergmann\Diff\Line Object
+                                            (
+                                                [type:SebastianBergmann\Diff\Line:private] => 3
+                                                [content:SebastianBergmann\Diff\Line:private] =>      */
+                                            )
+
+                                        [3] => SebastianBergmann\Diff\Line Object
+                                            (
+                                                [type:SebastianBergmann\Diff\Line:private] => 2
+                                                [content:SebastianBergmann\Diff\Line:private] =>     public function testAnotherMoneyWithSameCurrencyObjectCanBeAdded()
+                                            )
+
+                                        [4] => SebastianBergmann\Diff\Line Object
+                                            (
+                                                [type:SebastianBergmann\Diff\Line:private] => 1
+                                                [content:SebastianBergmann\Diff\Line:private] =>     public function testAnotherMoneyObjectWithSameCurrencyCanBeAdded()
+                                            )
+
+                                        [5] => SebastianBergmann\Diff\Line Object
+                                            (
+                                                [type:SebastianBergmann\Diff\Line:private] => 3
+                                                [content:SebastianBergmann\Diff\Line:private] =>     {
+                                            )
+
+                                        [6] => SebastianBergmann\Diff\Line Object
+                                            (
+                                                [type:SebastianBergmann\Diff\Line:private] => 3
+                                                [content:SebastianBergmann\Diff\Line:private] =>         $a = new Money(1, new Currency('EUR'));
+                                            )
+
+                                        [7] => SebastianBergmann\Diff\Line Object
+                                            (
+                                                [type:SebastianBergmann\Diff\Line:private] => 3
+                                                [content:SebastianBergmann\Diff\Line:private] =>         $b = new Money(2, new Currency('EUR'));
+                                            )
+                                    )
+                            )
+                    )
+            )
+    )

vendor/sebastian/diff/build.xml

@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project name="diff" default="setup">
+    <target name="setup" depends="clean,composer"/>
+
+    <target name="clean" description="Cleanup build artifacts">
+        <delete dir="${basedir}/vendor"/>
+        <delete file="${basedir}/composer.lock"/>
+    </target>
+
+    <target name="composer" depends="clean" description="Install dependencies with Composer">
+        <exec executable="composer" taskname="composer">
+            <arg value="update"/>
+            <arg value="--no-interaction"/>
+            <arg value="--no-progress"/>
+            <arg value="--no-ansi"/>
+            <arg value="--no-suggest"/>
+            <arg value="--optimize-autoloader"/>
+            <arg value="--prefer-stable"/>
+        </exec>
+    </target>
+</project>
+

vendor/sebastian/diff/composer.json

@@ -0,0 +1,39 @@
+{
+    "name": "sebastian/diff",
+    "description": "Diff implementation",
+    "keywords": ["diff", "udiff", "unidiff", "unified diff"],
+    "homepage": "https://github.com/sebastianbergmann/diff",
+    "license": "BSD-3-Clause",
+    "authors": [
+        {
+            "name": "Sebastian Bergmann",
+            "email": "sebastian@phpunit.de"
+        },
+        {
+            "name": "Kore Nordmann",
+            "email": "mail@kore-nordmann.de"
+        }
+    ],
+    "require": {
+        "php": "^7.1"
+    },
+    "require-dev": {
+        "phpunit/phpunit": "^7.5 || ^8.0",
+        "symfony/process": "^2 || ^3.3 || ^4"
+    },
+    "autoload": {
+        "classmap": [
+            "src/"
+        ]
+    },
+    "autoload-dev": {
+        "classmap": [
+            "tests/"
+        ]
+    },
+    "extra": {
+        "branch-alias": {
+            "dev-master": "3.0-dev"
+        }
+    }
+}

vendor/sebastian/diff/phpunit.xml

@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/7.2/phpunit.xsd"
+         bootstrap="vendor/autoload.php"
+         forceCoversAnnotation="true"
+         beStrictAboutCoversAnnotation="true"
+         beStrictAboutOutputDuringTests="true"
+         beStrictAboutTodoAnnotatedTests="true"
+         verbose="true">
+    <testsuites>
+        <testsuite name="default">
+            <directory suffix="Test.php">tests</directory>
+        </testsuite>
+    </testsuites>
+
+    <filter>
+        <whitelist processUncoveredFilesFromWhitelist="true">
+            <directory suffix=".php">src</directory>
+        </whitelist>
+    </filter>
+</phpunit>

vendor/sebastian/diff/src/Chunk.php

@@ -0,0 +1,90 @@
+<?php declare(strict_types=1);
+/*
+ * This file is part of sebastian/diff.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace SebastianBergmann\Diff;
+
+final class Chunk
+{
+    /**
+     * @var int
+     */
+    private $start;
+
+    /**
+     * @var int
+     */
+    private $startRange;
+
+    /**
+     * @var int
+     */
+    private $end;
+
+    /**
+     * @var int
+     */
+    private $endRange;
+
+    /**
+     * @var Line[]
+     */
+    private $lines;
+
+    public function __construct(int $start = 0, int $startRange = 1, int $end = 0, int $endRange = 1, array $lines = [])
+    {
+        $this->start      = $start;
+        $this->startRange = $startRange;
+        $this->end        = $end;
+        $this->endRange   = $endRange;
+        $this->lines      = $lines;
+    }
+
+    public function getStart(): int
+    {
+        return $this->start;
+    }
+
+    public function getStartRange(): int
+    {
+        return $this->startRange;
+    }
+
+    public function getEnd(): int
+    {
+        return $this->end;
+    }
+
+    public function getEndRange(): int
+    {
+        return $this->endRange;
+    }
+
+    /**
+     * @return Line[]
+     */
+    public function getLines(): array
+    {
+        return $this->lines;
+    }
+
+    /**
+     * @param Line[] $lines
+     */
+    public function setLines(array $lines): void
+    {
+        foreach ($lines as $line) {
+            if (!$line instanceof Line) {
+                throw new InvalidArgumentException;
+            }
+        }
+
+        $this->lines = $lines;
+    }
+}

vendor/sebastian/diff/src/Diff.php

@@ -0,0 +1,67 @@
+<?php declare(strict_types=1);
+/*
+ * This file is part of sebastian/diff.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace SebastianBergmann\Diff;
+
+final class Diff
+{
+    /**
+     * @var string
+     */
+    private $from;
+
+    /**
+     * @var string
+     */
+    private $to;
+
+    /**
+     * @var Chunk[]
+     */
+    private $chunks;
+
+    /**
+     * @param string  $from
+     * @param string  $to
+     * @param Chunk[] $chunks
+     */
+    public function __construct(string $from, string $to, array $chunks = [])
+    {
+        $this->from   = $from;
+        $this->to     = $to;
+        $this->chunks = $chunks;
+    }
+
+    public function getFrom(): string
+    {
+        return $this->from;
+    }
+
+    public function getTo(): string
+    {
+        return $this->to;
+    }
+
+    /**
+     * @return Chunk[]
+     */
+    public function getChunks(): array
+    {
+        return $this->chunks;
+    }
+
+    /**
+     * @param Chunk[] $chunks
+     */
+    public function setChunks(array $chunks): void
+    {
+        $this->chunks = $chunks;
+    }
+}

vendor/sebastian/diff/src/Differ.php

@@ -0,0 +1,330 @@
+<?php declare(strict_types=1);
+/*
+ * This file is part of sebastian/diff.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace SebastianBergmann\Diff;
+
+use SebastianBergmann\Diff\Output\DiffOutputBuilderInterface;
+use SebastianBergmann\Diff\Output\UnifiedDiffOutputBuilder;
+
+/**
+ * Diff implementation.
+ */
+final class Differ
+{
+    public const OLD                     = 0;
+    public const ADDED                   = 1;
+    public const REMOVED                 = 2;
+    public const DIFF_LINE_END_WARNING   = 3;
+    public const NO_LINE_END_EOF_WARNING = 4;
+
+    /**
+     * @var DiffOutputBuilderInterface
+     */
+    private $outputBuilder;
+
+    /**
+     * @param DiffOutputBuilderInterface $outputBuilder
+     *
+     * @throws InvalidArgumentException
+     */
+    public function __construct($outputBuilder = null)
+    {
+        if ($outputBuilder instanceof DiffOutputBuilderInterface) {
+            $this->outputBuilder = $outputBuilder;
+        } elseif (null === $outputBuilder) {
+            $this->outputBuilder = new UnifiedDiffOutputBuilder;
+        } elseif (\is_string($outputBuilder)) {
+            // PHPUnit 6.1.4, 6.2.0, 6.2.1, 6.2.2, and 6.2.3 support
+            // @see https://github.com/sebastianbergmann/phpunit/issues/2734#issuecomment-314514056
+            // @deprecated
+            $this->outputBuilder = new UnifiedDiffOutputBuilder($outputBuilder);
+        } else {
+            throw new InvalidArgumentException(
+                \sprintf(
+                    'Expected builder to be an instance of DiffOutputBuilderInterface, <null> or a string, got %s.',
+                    \is_object($outputBuilder) ? 'instance of "' . \get_class($outputBuilder) . '"' : \gettype($outputBuilder) . ' "' . $outputBuilder . '"'
+                )
+            );
+        }
+    }
+
+    /**
+     * Returns the diff between two arrays or strings as string.
+     *
+     * @param array|string                            $from
+     * @param array|string                            $to
+     * @param null|LongestCommonSubsequenceCalculator $lcs
+     *
+     * @return string
+     */
+    public function diff($from, $to, LongestCommonSubsequenceCalculator $lcs = null): string
+    {
+        $diff = $this->diffToArray(
+            $this->normalizeDiffInput($from),
+            $this->normalizeDiffInput($to),
+            $lcs
+        );
+
+        return $this->outputBuilder->getDiff($diff);
+    }
+
+    /**
+     * Returns the diff between two arrays or strings as array.
+     *
+     * Each array element contains two elements:
+     *   - [0] => mixed $token
+     *   - [1] => 2|1|0
+     *
+     * - 2: REMOVED: $token was removed from $from
+     * - 1: ADDED: $token was added to $from
+     * - 0: OLD: $token is not changed in $to
+     *
+     * @param array|string                       $from
+     * @param array|string                       $to
+     * @param LongestCommonSubsequenceCalculator $lcs
+     *
+     * @return array
+     */
+    public function diffToArray($from, $to, LongestCommonSubsequenceCalculator $lcs = null): array
+    {
+        if (\is_string($from)) {
+            $from = $this->splitStringByLines($from);
+        } elseif (!\is_array($from)) {
+            throw new InvalidArgumentException('"from" must be an array or string.');
+        }
+
+        if (\is_string($to)) {
+            $to = $this->splitStringByLines($to);
+        } elseif (!\is_array($to)) {
+            throw new InvalidArgumentException('"to" must be an array or string.');
+        }
+
+        [$from, $to, $start, $end] = self::getArrayDiffParted($from, $to);
+
+        if ($lcs === null) {
+            $lcs = $this->selectLcsImplementation($from, $to);
+        }
+
+        $common = $lcs->calculate(\array_values($from), \array_values($to));
+        $diff   = [];
+
+        foreach ($start as $token) {
+            $diff[] = [$token, self::OLD];
+        }
+
+        \reset($from);
+        \reset($to);
+
+        foreach ($common as $token) {
+            while (($fromToken = \reset($from)) !== $token) {
+                $diff[] = [\array_shift($from), self::REMOVED];
+            }
+
+            while (($toToken = \reset($to)) !== $token) {
+                $diff[] = [\array_shift($to), self::ADDED];
+            }
+
+            $diff[] = [$token, self::OLD];
+
+            \array_shift($from);
+            \array_shift($to);
+        }
+
+        while (($token = \array_shift($from)) !== null) {
+            $diff[] = [$token, self::REMOVED];
+        }
+
+        while (($token = \array_shift($to)) !== null) {
+            $diff[] = [$token, self::ADDED];
+        }
+
+        foreach ($end as $token) {
+            $diff[] = [$token, self::OLD];
+        }
+
+        if ($this->detectUnmatchedLineEndings($diff)) {
+            \array_unshift($diff, ["#Warning: Strings contain different line endings!\n", self::DIFF_LINE_END_WARNING]);
+        }
+
+        return $diff;
+    }
+
+    /**
+     * Casts variable to string if it is not a string or array.
+     *
+     * @param mixed $input
+     *
+     * @return array|string
+     */
+    private function normalizeDiffInput($input)
+    {
+        if (!\is_array($input) && !\is_string($input)) {
+            return (string) $input;
+        }
+
+        return $input;
+    }
+
+    /**
+     * Checks if input is string, if so it will split it line-by-line.
+     *
+     * @param string $input
+     *
+     * @return array
+     */
+    private function splitStringByLines(string $input): array
+    {
+        return \preg_split('/(.*\R)/', $input, -1, PREG_SPLIT_DELIM_CAPTURE | PREG_SPLIT_NO_EMPTY);
+    }
+
+    /**
+     * @param array $from
+     * @param array $to
+     *
+     * @return LongestCommonSubsequenceCalculator
+     */
+    private function selectLcsImplementation(array $from, array $to): LongestCommonSubsequenceCalculator
+    {
+        // We do not want to use the time-efficient implementation if its memory
+        // footprint will probably exceed this value. Note that the footprint
+        // calculation is only an estimation for the matrix and the LCS method
+        // will typically allocate a bit more memory than this.
+        $memoryLimit = 100 * 1024 * 1024;
+
+        if ($this->calculateEstimatedFootprint($from, $to) > $memoryLimit) {
+            return new MemoryEfficientLongestCommonSubsequenceCalculator;
+        }
+
+        return new TimeEfficientLongestCommonSubsequenceCalculator;
+    }
+
+    /**
+     * Calculates the estimated memory footprint for the DP-based method.
+     *
+     * @param array $from
+     * @param array $to
+     *
+     * @return float|int
+     */
+    private function calculateEstimatedFootprint(array $from, array $to)
+    {
+        $itemSize = PHP_INT_SIZE === 4 ? 76 : 144;
+
+        return $itemSize * \min(\count($from), \count($to)) ** 2;
+    }
+
+    /**
+     * Returns true if line ends don't match in a diff.
+     *
+     * @param array $diff
+     *
+     * @return bool
+     */
+    private function detectUnmatchedLineEndings(array $diff): bool
+    {
+        $newLineBreaks = ['' => true];
+        $oldLineBreaks = ['' => true];
+
+        foreach ($diff as $entry) {
+            if (self::OLD === $entry[1]) {
+                $ln                 = $this->getLinebreak($entry[0]);
+                $oldLineBreaks[$ln] = true;
+                $newLineBreaks[$ln] = true;
+            } elseif (self::ADDED === $entry[1]) {
+                $newLineBreaks[$this->getLinebreak($entry[0])] = true;
+            } elseif (self::REMOVED === $entry[1]) {
+                $oldLineBreaks[$this->getLinebreak($entry[0])] = true;
+            }
+        }
+
+        // if either input or output is a single line without breaks than no warning should be raised
+        if (['' => true] === $newLineBreaks || ['' => true] === $oldLineBreaks) {
+            return false;
+        }
+
+        // two way compare
+        foreach ($newLineBreaks as $break => $set) {
+            if (!isset($oldLineBreaks[$break])) {
+                return true;
+            }
+        }
+
+        foreach ($oldLineBreaks as $break => $set) {
+            if (!isset($newLineBreaks[$break])) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    private function getLinebreak($line): string
+    {
+        if (!\is_string($line)) {
+            return '';
+        }
+
+        $lc = \substr($line, -1);
+
+        if ("\r" === $lc) {
+            return "\r";
+        }
+
+        if ("\n" !== $lc) {
+            return '';
+        }
+
+        if ("\r\n" === \substr($line, -2)) {
+            return "\r\n";
+        }
+
+        return "\n";
+    }
+
+    private static function getArrayDiffParted(array &$from, array &$to): array
+    {
+        $start = [];
+        $end   = [];
+
+        \reset($to);
+
+        foreach ($from as $k => $v) {
+            $toK = \key($to);
+
+            if ($toK === $k && $v === $to[$k]) {
+                $start[$k] = $v;
+
+                unset($from[$k], $to[$k]);
+            } else {
+                break;
+            }
+        }
+
+        \end($from);
+        \end($to);
+
+        do {
+            $fromK = \key($from);
+            $toK   = \key($to);
+
+            if (null === $fromK || null === $toK || \current($from) !== \current($to)) {
+                break;
+            }
+
+            \prev($from);
+            \prev($to);
+
+            $end = [$fromK => $from[$fromK]] + $end;
+            unset($from[$fromK], $to[$toK]);
+        } while (true);
+
+        return [$from, $to, $start, $end];
+    }
+}

vendor/sebastian/diff/src/Exception/ConfigurationException.php

@@ -0,0 +1,40 @@
+<?php declare(strict_types=1);
+/*
+ * This file is part of sebastian/diff.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace SebastianBergmann\Diff;
+
+final class ConfigurationException extends InvalidArgumentException
+{
+    /**
+     * @param string          $option
+     * @param string          $expected
+     * @param mixed           $value
+     * @param int             $code
+     * @param null|\Exception $previous
+     */
+    public function __construct(
+        string $option,
+        string $expected,
+        $value,
+        int $code = 0,
+        \Exception $previous = null
+    ) {
+        parent::__construct(
+            \sprintf(
+                'Option "%s" must be %s, got "%s".',
+                $option,
+                $expected,
+                \is_object($value) ? \get_class($value) : (null === $value ? '<null>' : \gettype($value) . '#' . $value)
+            ),
+            $code,
+            $previous
+        );
+    }
+}

vendor/sebastian/diff/src/Exception/Exception.php

@@ -0,0 +1,15 @@
+<?php declare(strict_types=1);
+/*
+ * This file is part of sebastian/diff.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace SebastianBergmann\Diff;
+
+interface Exception
+{
+}

vendor/sebastian/diff/src/Exception/InvalidArgumentException.php

@@ -0,0 +1,15 @@
+<?php declare(strict_types=1);
+/*
+ * This file is part of sebastian/diff.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace SebastianBergmann\Diff;
+
+class InvalidArgumentException extends \InvalidArgumentException implements Exception
+{
+}

vendor/sebastian/diff/src/Line.php

@@ -0,0 +1,44 @@
+<?php declare(strict_types=1);
+/*
+ * This file is part of sebastian/diff.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace SebastianBergmann\Diff;
+
+final class Line
+{
+    public const ADDED     = 1;
+    public const REMOVED   = 2;
+    public const UNCHANGED = 3;
+
+    /**
+     * @var int
+     */
+    private $type;
+
+    /**
+     * @var string
+     */
+    private $content;
+
+    public function __construct(int $type = self::UNCHANGED, string $content = '')
+    {
+        $this->type    = $type;
+        $this->content = $content;
+    }
+
+    public function getContent(): string
+    {
+        return $this->content;
+    }
+
+    public function getType(): int
+    {
+        return $this->type;
+    }
+}

vendor/sebastian/diff/src/LongestCommonSubsequenceCalculator.php

@@ -0,0 +1,24 @@
+<?php declare(strict_types=1);
+/*
+ * This file is part of sebastian/diff.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace SebastianBergmann\Diff;
+
+interface LongestCommonSubsequenceCalculator
+{
+    /**
+     * Calculates the longest common subsequence of two arrays.
+     *
+     * @param array $from
+     * @param array $to
+     *
+     * @return array
+     */
+    public function calculate(array $from, array $to): array;
+}

vendor/sebastian/diff/src/MemoryEfficientLongestCommonSubsequenceCalculator.php

@@ -0,0 +1,81 @@
+<?php declare(strict_types=1);
+/*
+ * This file is part of sebastian/diff.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace SebastianBergmann\Diff;
+
+final class MemoryEfficientLongestCommonSubsequenceCalculator implements LongestCommonSubsequenceCalculator
+{
+    /**
+     * {@inheritdoc}
+     */
+    public function calculate(array $from, array $to): array
+    {
+        $cFrom = \count($from);
+        $cTo   = \count($to);
+
+        if ($cFrom === 0) {
+            return [];
+        }
+
+        if ($cFrom === 1) {
+            if (\in_array($from[0], $to, true)) {
+                return [$from[0]];
+            }
+
+            return [];
+        }
+
+        $i         = (int) ($cFrom / 2);
+        $fromStart = \array_slice($from, 0, $i);
+        $fromEnd   = \array_slice($from, $i);
+        $llB       = $this->length($fromStart, $to);
+        $llE       = $this->length(\array_reverse($fromEnd), \array_reverse($to));
+        $jMax      = 0;
+        $max       = 0;
+
+        for ($j = 0; $j <= $cTo; $j++) {
+            $m = $llB[$j] + $llE[$cTo - $j];
+
+            if ($m >= $max) {
+                $max  = $m;
+                $jMax = $j;
+            }
+        }
+
+        $toStart = \array_slice($to, 0, $jMax);
+        $toEnd   = \array_slice($to, $jMax);
+
+        return \array_merge(
+            $this->calculate($fromStart, $toStart),
+            $this->calculate($fromEnd, $toEnd)
+        );
+    }
+
+    private function length(array $from, array $to): array
+    {
+        $current = \array_fill(0, \count($to) + 1, 0);
+        $cFrom   = \count($from);
+        $cTo     = \count($to);
+
+        for ($i = 0; $i < $cFrom; $i++) {
+            $prev = $current;
+
+            for ($j = 0; $j < $cTo; $j++) {
+                if ($from[$i] === $to[$j]) {
+                    $current[$j + 1] = $prev[$j] + 1;
+                } else {
+                    $current[$j + 1] = \max($current[$j], $prev[$j + 1]);
+                }
+            }
+        }
+
+        return $current;
+    }
+}

vendor/sebastian/diff/src/Output/AbstractChunkOutputBuilder.php

@@ -0,0 +1,56 @@
+<?php declare(strict_types=1);
+/*
+ * This file is part of sebastian/diff.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace SebastianBergmann\Diff\Output;
+
+abstract class AbstractChunkOutputBuilder implements DiffOutputBuilderInterface
+{
+    /**
+     * Takes input of the diff array and returns the common parts.
+     * Iterates through diff line by line.
+     *
+     * @param array $diff
+     * @param int   $lineThreshold
+     *
+     * @return array
+     */
+    protected function getCommonChunks(array $diff, int $lineThreshold = 5): array
+    {
+        $diffSize     = \count($diff);
+        $capturing    = false;
+        $chunkStart   = 0;
+        $chunkSize    = 0;
+        $commonChunks = [];
+
+        for ($i = 0; $i < $diffSize; ++$i) {
+            if ($diff[$i][1] === 0 /* OLD */) {
+                if ($capturing === false) {
+                    $capturing  = true;
+                    $chunkStart = $i;
+                    $chunkSize  = 0;
+                } else {
+                    ++$chunkSize;
+                }
+            } elseif ($capturing !== false) {
+                if ($chunkSize >= $lineThreshold) {
+                    $commonChunks[$chunkStart] = $chunkStart + $chunkSize;
+                }
+
+                $capturing = false;
+            }
+        }
+
+        if ($capturing !== false && $chunkSize >= $lineThreshold) {
+            $commonChunks[$chunkStart] = $chunkStart + $chunkSize;
+        }
+
+        return $commonChunks;
+    }
+}

vendor/sebastian/diff/src/Output/DiffOnlyOutputBuilder.php

@@ -0,0 +1,68 @@
+<?php declare(strict_types=1);
+/*
+ * This file is part of sebastian/diff.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace SebastianBergmann\Diff\Output;
+
+use SebastianBergmann\Diff\Differ;
+
+/**
+ * Builds a diff string representation in a loose unified diff format
+ * listing only changes lines. Does not include line numbers.
+ */
+final class DiffOnlyOutputBuilder implements DiffOutputBuilderInterface
+{
+    /**
+     * @var string
+     */
+    private $header;
+
+    public function __construct(string $header = "--- Original\n+++ New\n")
+    {
+        $this->header = $header;
+    }
+
+    public function getDiff(array $diff): string
+    {
+        $buffer = \fopen('php://memory', 'r+b');
+
+        if ('' !== $this->header) {
+            \fwrite($buffer, $this->header);
+
+            if ("\n" !== \substr($this->header, -1, 1)) {
+                \fwrite($buffer, "\n");
+            }
+        }
+
+        foreach ($diff as $diffEntry) {
+            if ($diffEntry[1] === Differ::ADDED) {
+                \fwrite($buffer, '+' . $diffEntry[0]);
+            } elseif ($diffEntry[1] === Differ::REMOVED) {
+                \fwrite($buffer, '-' . $diffEntry[0]);
+            } elseif ($diffEntry[1] === Differ::DIFF_LINE_END_WARNING) {
+                \fwrite($buffer, ' ' . $diffEntry[0]);
+
+                continue; // Warnings should not be tested for line break, it will always be there
+            } else { /* Not changed (old) 0 */
+                continue; // we didn't write the non changs line, so do not add a line break either
+            }
+
+            $lc = \substr($diffEntry[0], -1);
+
+            if ($lc !== "\n" && $lc !== "\r") {
+                \fwrite($buffer, "\n"); // \No newline at end of file
+            }
+        }
+
+        $diff = \stream_get_contents($buffer, -1, 0);
+        \fclose($buffer);
+
+        return $diff;
+    }
+}

vendor/sebastian/diff/src/Output/DiffOutputBuilderInterface.php

@@ -0,0 +1,20 @@
+<?php declare(strict_types=1);
+/*
+ * This file is part of sebastian/diff.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace SebastianBergmann\Diff\Output;
+
+/**
+ * Defines how an output builder should take a generated
+ * diff array and return a string representation of that diff.
+ */
+interface DiffOutputBuilderInterface
+{
+    public function getDiff(array $diff): string;
+}

vendor/sebastian/diff/src/Output/StrictUnifiedDiffOutputBuilder.php

@@ -0,0 +1,318 @@
+<?php declare(strict_types=1);
+/*
+ * This file is part of sebastian/diff.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace SebastianBergmann\Diff\Output;
+
+use SebastianBergmann\Diff\ConfigurationException;
+use SebastianBergmann\Diff\Differ;
+
+/**
+ * Strict Unified diff output builder.
+ *
+ * Generates (strict) Unified diff's (unidiffs) with hunks.
+ */
+final class StrictUnifiedDiffOutputBuilder implements DiffOutputBuilderInterface
+{
+    private static $default = [
+        'collapseRanges'      => true, // ranges of length one are rendered with the trailing `,1`
+        'commonLineThreshold' => 6,    // number of same lines before ending a new hunk and creating a new one (if needed)
+        'contextLines'        => 3,    // like `diff:  -u, -U NUM, --unified[=NUM]`, for patch/git apply compatibility best to keep at least @ 3
+        'fromFile'            => null,
+        'fromFileDate'        => null,
+        'toFile'              => null,
+        'toFileDate'          => null,
+    ];
+    /**
+     * @var bool
+     */
+    private $changed;
+
+    /**
+     * @var bool
+     */
+    private $collapseRanges;
+
+    /**
+     * @var int >= 0
+     */
+    private $commonLineThreshold;
+
+    /**
+     * @var string
+     */
+    private $header;
+
+    /**
+     * @var int >= 0
+     */
+    private $contextLines;
+
+    public function __construct(array $options = [])
+    {
+        $options = \array_merge(self::$default, $options);
+
+        if (!\is_bool($options['collapseRanges'])) {
+            throw new ConfigurationException('collapseRanges', 'a bool', $options['collapseRanges']);
+        }
+
+        if (!\is_int($options['contextLines']) || $options['contextLines'] < 0) {
+            throw new ConfigurationException('contextLines', 'an int >= 0', $options['contextLines']);
+        }
+
+        if (!\is_int($options['commonLineThreshold']) || $options['commonLineThreshold'] <= 0) {
+            throw new ConfigurationException('commonLineThreshold', 'an int > 0', $options['commonLineThreshold']);
+        }
+
+        foreach (['fromFile', 'toFile'] as $option) {
+            if (!\is_string($options[$option])) {
+                throw new ConfigurationException($option, 'a string', $options[$option]);
+            }
+        }
+
+        foreach (['fromFileDate', 'toFileDate'] as $option) {
+            if (null !== $options[$option] && !\is_string($options[$option])) {
+                throw new ConfigurationException($option, 'a string or <null>', $options[$option]);
+            }
+        }
+
+        $this->header = \sprintf(
+            "--- %s%s\n+++ %s%s\n",
+            $options['fromFile'],
+            null === $options['fromFileDate'] ? '' : "\t" . $options['fromFileDate'],
+            $options['toFile'],
+            null === $options['toFileDate'] ? '' : "\t" . $options['toFileDate']
+        );
+
+        $this->collapseRanges      = $options['collapseRanges'];
+        $this->commonLineThreshold = $options['commonLineThreshold'];
+        $this->contextLines        = $options['contextLines'];
+    }
+
+    public function getDiff(array $diff): string
+    {
+        if (0 === \count($diff)) {
+            return '';
+        }
+
+        $this->changed = false;
+
+        $buffer = \fopen('php://memory', 'r+b');
+        \fwrite($buffer, $this->header);
+
+        $this->writeDiffHunks($buffer, $diff);
+
+        if (!$this->changed) {
+            \fclose($buffer);
+
+            return '';
+        }
+
+        $diff = \stream_get_contents($buffer, -1, 0);
+
+        \fclose($buffer);
+
+        // If the last char is not a linebreak: add it.
+        // This might happen when both the `from` and `to` do not have a trailing linebreak
+        $last = \substr($diff, -1);
+
+        return "\n" !== $last && "\r" !== $last
+            ? $diff . "\n"
+            : $diff
+        ;
+    }
+
+    private function writeDiffHunks($output, array $diff): void
+    {
+        // detect "No newline at end of file" and insert into `$diff` if needed
+
+        $upperLimit = \count($diff);
+
+        if (0 === $diff[$upperLimit - 1][1]) {
+            $lc = \substr($diff[$upperLimit - 1][0], -1);
+
+            if ("\n" !== $lc) {
+                \array_splice($diff, $upperLimit, 0, [["\n\\ No newline at end of file\n", Differ::NO_LINE_END_EOF_WARNING]]);
+            }
+        } else {
+            // search back for the last `+` and `-` line,
+            // check if has trailing linebreak, else add under it warning under it
+            $toFind = [1 => true, 2 => true];
+
+            for ($i = $upperLimit - 1; $i >= 0; --$i) {
+                if (isset($toFind[$diff[$i][1]])) {
+                    unset($toFind[$diff[$i][1]]);
+                    $lc = \substr($diff[$i][0], -1);
+
+                    if ("\n" !== $lc) {
+                        \array_splice($diff, $i + 1, 0, [["\n\\ No newline at end of file\n", Differ::NO_LINE_END_EOF_WARNING]]);
+                    }
+
+                    if (!\count($toFind)) {
+                        break;
+                    }
+                }
+            }
+        }
+
+        // write hunks to output buffer
+
+        $cutOff      = \max($this->commonLineThreshold, $this->contextLines);
+        $hunkCapture = false;
+        $sameCount   = $toRange = $fromRange = 0;
+        $toStart     = $fromStart = 1;
+
+        foreach ($diff as $i => $entry) {
+            if (0 === $entry[1]) { // same
+                if (false === $hunkCapture) {
+                    ++$fromStart;
+                    ++$toStart;
+
+                    continue;
+                }
+
+                ++$sameCount;
+                ++$toRange;
+                ++$fromRange;
+
+                if ($sameCount === $cutOff) {
+                    $contextStartOffset = ($hunkCapture - $this->contextLines) < 0
+                        ? $hunkCapture
+                        : $this->contextLines
+                    ;
+
+                    // note: $contextEndOffset = $this->contextLines;
+                    //
+                    // because we never go beyond the end of the diff.
+                    // with the cutoff/contextlines here the follow is never true;
+                    //
+                    // if ($i - $cutOff + $this->contextLines + 1 > \count($diff)) {
+                    //    $contextEndOffset = count($diff) - 1;
+                    // }
+                    //
+                    // ; that would be true for a trailing incomplete hunk case which is dealt with after this loop
+
+                    $this->writeHunk(
+                        $diff,
+                        $hunkCapture - $contextStartOffset,
+                        $i - $cutOff + $this->contextLines + 1,
+                        $fromStart - $contextStartOffset,
+                        $fromRange - $cutOff + $contextStartOffset + $this->contextLines,
+                        $toStart - $contextStartOffset,
+                        $toRange - $cutOff + $contextStartOffset + $this->contextLines,
+                        $output
+                    );
+
+                    $fromStart += $fromRange;
+                    $toStart += $toRange;
+
+                    $hunkCapture = false;
+                    $sameCount   = $toRange = $fromRange = 0;
+                }
+
+                continue;
+            }
+
+            $sameCount = 0;
+
+            if ($entry[1] === Differ::NO_LINE_END_EOF_WARNING) {
+                continue;
+            }
+
+            $this->changed = true;
+
+            if (false === $hunkCapture) {
+                $hunkCapture = $i;
+            }
+
+            if (Differ::ADDED === $entry[1]) { // added
+                ++$toRange;
+            }
+
+            if (Differ::REMOVED === $entry[1]) { // removed
+                ++$fromRange;
+            }
+        }
+
+        if (false === $hunkCapture) {
+            return;
+        }
+
+        // we end here when cutoff (commonLineThreshold) was not reached, but we where capturing a hunk,
+        // do not render hunk till end automatically because the number of context lines might be less than the commonLineThreshold
+
+        $contextStartOffset = $hunkCapture - $this->contextLines < 0
+            ? $hunkCapture
+            : $this->contextLines
+        ;
+
+        // prevent trying to write out more common lines than there are in the diff _and_
+        // do not write more than configured through the context lines
+        $contextEndOffset = \min($sameCount, $this->contextLines);
+
+        $fromRange -= $sameCount;
+        $toRange -= $sameCount;
+
+        $this->writeHunk(
+            $diff,
+            $hunkCapture - $contextStartOffset,
+            $i - $sameCount + $contextEndOffset + 1,
+            $fromStart - $contextStartOffset,
+            $fromRange + $contextStartOffset + $contextEndOffset,
+            $toStart - $contextStartOffset,
+            $toRange + $contextStartOffset + $contextEndOffset,
+            $output
+        );
+    }
+
+    private function writeHunk(
+        array $diff,
+        int $diffStartIndex,
+        int $diffEndIndex,
+        int $fromStart,
+        int $fromRange,
+        int $toStart,
+        int $toRange,
+        $output
+    ): void {
+        \fwrite($output, '@@ -' . $fromStart);
+
+        if (!$this->collapseRanges || 1 !== $fromRange) {
+            \fwrite($output, ',' . $fromRange);
+        }
+
+        \fwrite($output, ' +' . $toStart);
+
+        if (!$this->collapseRanges || 1 !== $toRange) {
+            \fwrite($output, ',' . $toRange);
+        }
+
+        \fwrite($output, " @@\n");
+
+        for ($i = $diffStartIndex; $i < $diffEndIndex; ++$i) {
+            if ($diff[$i][1] === Differ::ADDED) {
+                $this->changed = true;
+                \fwrite($output, '+' . $diff[$i][0]);
+            } elseif ($diff[$i][1] === Differ::REMOVED) {
+                $this->changed = true;
+                \fwrite($output, '-' . $diff[$i][0]);
+            } elseif ($diff[$i][1] === Differ::OLD) {
+                \fwrite($output, ' ' . $diff[$i][0]);
+            } elseif ($diff[$i][1] === Differ::NO_LINE_END_EOF_WARNING) {
+                $this->changed = true;
+                \fwrite($output, $diff[$i][0]);
+            }
+            //} elseif ($diff[$i][1] === Differ::DIFF_LINE_END_WARNING) { // custom comment inserted by PHPUnit/diff package
+                //  skip
+            //} else {
+                //  unknown/invalid
+            //}
+        }
+    }
+}

vendor/sebastian/diff/src/Output/UnifiedDiffOutputBuilder.php

@@ -0,0 +1,264 @@
+<?php declare(strict_types=1);
+/*
+ * This file is part of sebastian/diff.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace SebastianBergmann\Diff\Output;
+
+use SebastianBergmann\Diff\Differ;
+
+/**
+ * Builds a diff string representation in unified diff format in chunks.
+ */
+final class UnifiedDiffOutputBuilder extends AbstractChunkOutputBuilder
+{
+    /**
+     * @var bool
+     */
+    private $collapseRanges = true;
+
+    /**
+     * @var int >= 0
+     */
+    private $commonLineThreshold = 6;
+
+    /**
+     * @var int >= 0
+     */
+    private $contextLines = 3;
+
+    /**
+     * @var string
+     */
+    private $header;
+
+    /**
+     * @var bool
+     */
+    private $addLineNumbers;
+
+    public function __construct(string $header = "--- Original\n+++ New\n", bool $addLineNumbers = false)
+    {
+        $this->header         = $header;
+        $this->addLineNumbers = $addLineNumbers;
+    }
+
+    public function getDiff(array $diff): string
+    {
+        $buffer = \fopen('php://memory', 'r+b');
+
+        if ('' !== $this->header) {
+            \fwrite($buffer, $this->header);
+
+            if ("\n" !== \substr($this->header, -1, 1)) {
+                \fwrite($buffer, "\n");
+            }
+        }
+
+        if (0 !== \count($diff)) {
+            $this->writeDiffHunks($buffer, $diff);
+        }
+
+        $diff = \stream_get_contents($buffer, -1, 0);
+
+        \fclose($buffer);
+
+        // If the last char is not a linebreak: add it.
+        // This might happen when both the `from` and `to` do not have a trailing linebreak
+        $last = \substr($diff, -1);
+
+        return "\n" !== $last && "\r" !== $last
+            ? $diff . "\n"
+            : $diff
+        ;
+    }
+
+    private function writeDiffHunks($output, array $diff): void
+    {
+        // detect "No newline at end of file" and insert into `$diff` if needed
+
+        $upperLimit = \count($diff);
+
+        if (0 === $diff[$upperLimit - 1][1]) {
+            $lc = \substr($diff[$upperLimit - 1][0], -1);
+
+            if ("\n" !== $lc) {
+                \array_splice($diff, $upperLimit, 0, [["\n\\ No newline at end of file\n", Differ::NO_LINE_END_EOF_WARNING]]);
+            }
+        } else {
+            // search back for the last `+` and `-` line,
+            // check if has trailing linebreak, else add under it warning under it
+            $toFind = [1 => true, 2 => true];
+
+            for ($i = $upperLimit - 1; $i >= 0; --$i) {
+                if (isset($toFind[$diff[$i][1]])) {
+                    unset($toFind[$diff[$i][1]]);
+                    $lc = \substr($diff[$i][0], -1);
+
+                    if ("\n" !== $lc) {
+                        \array_splice($diff, $i + 1, 0, [["\n\\ No newline at end of file\n", Differ::NO_LINE_END_EOF_WARNING]]);
+                    }
+
+                    if (!\count($toFind)) {
+                        break;
+                    }
+                }
+            }
+        }
+
+        // write hunks to output buffer
+
+        $cutOff      = \max($this->commonLineThreshold, $this->contextLines);
+        $hunkCapture = false;
+        $sameCount   = $toRange   = $fromRange = 0;
+        $toStart     = $fromStart = 1;
+
+        foreach ($diff as $i => $entry) {
+            if (0 === $entry[1]) { // same
+                if (false === $hunkCapture) {
+                    ++$fromStart;
+                    ++$toStart;
+
+                    continue;
+                }
+
+                ++$sameCount;
+                ++$toRange;
+                ++$fromRange;
+
+                if ($sameCount === $cutOff) {
+                    $contextStartOffset = ($hunkCapture - $this->contextLines) < 0
+                        ? $hunkCapture
+                        : $this->contextLines
+                    ;
+
+                    // note: $contextEndOffset = $this->contextLines;
+                    //
+                    // because we never go beyond the end of the diff.
+                    // with the cutoff/contextlines here the follow is never true;
+                    //
+                    // if ($i - $cutOff + $this->contextLines + 1 > \count($diff)) {
+                    //    $contextEndOffset = count($diff) - 1;
+                    // }
+                    //
+                    // ; that would be true for a trailing incomplete hunk case which is dealt with after this loop
+
+                    $this->writeHunk(
+                        $diff,
+                        $hunkCapture - $contextStartOffset,
+                        $i - $cutOff + $this->contextLines + 1,
+                        $fromStart - $contextStartOffset,
+                        $fromRange - $cutOff + $contextStartOffset + $this->contextLines,
+                        $toStart - $contextStartOffset,
+                        $toRange - $cutOff + $contextStartOffset + $this->contextLines,
+                        $output
+                    );
+
+                    $fromStart += $fromRange;
+                    $toStart += $toRange;
+
+                    $hunkCapture = false;
+                    $sameCount   = $toRange = $fromRange = 0;
+                }
+
+                continue;
+            }
+
+            $sameCount = 0;
+
+            if ($entry[1] === Differ::NO_LINE_END_EOF_WARNING) {
+                continue;
+            }
+
+            if (false === $hunkCapture) {
+                $hunkCapture = $i;
+            }
+
+            if (Differ::ADDED === $entry[1]) {
+                ++$toRange;
+            }
+
+            if (Differ::REMOVED === $entry[1]) {
+                ++$fromRange;
+            }
+        }
+
+        if (false === $hunkCapture) {
+            return;
+        }
+
+        // we end here when cutoff (commonLineThreshold) was not reached, but we where capturing a hunk,
+        // do not render hunk till end automatically because the number of context lines might be less than the commonLineThreshold
+
+        $contextStartOffset = $hunkCapture - $this->contextLines < 0
+            ? $hunkCapture
+            : $this->contextLines
+        ;
+
+        // prevent trying to write out more common lines than there are in the diff _and_
+        // do not write more than configured through the context lines
+        $contextEndOffset = \min($sameCount, $this->contextLines);
+
+        $fromRange -= $sameCount;
+        $toRange -= $sameCount;
+
+        $this->writeHunk(
+            $diff,
+            $hunkCapture - $contextStartOffset,
+            $i - $sameCount + $contextEndOffset + 1,
+            $fromStart - $contextStartOffset,
+            $fromRange + $contextStartOffset + $contextEndOffset,
+            $toStart - $contextStartOffset,
+            $toRange + $contextStartOffset + $contextEndOffset,
+            $output
+        );
+    }
+
+    private function writeHunk(
+        array $diff,
+        int $diffStartIndex,
+        int $diffEndIndex,
+        int $fromStart,
+        int $fromRange,
+        int $toStart,
+        int $toRange,
+        $output
+    ): void {
+        if ($this->addLineNumbers) {
+            \fwrite($output, '@@ -' . $fromStart);
+
+            if (!$this->collapseRanges || 1 !== $fromRange) {
+                \fwrite($output, ',' . $fromRange);
+            }
+
+            \fwrite($output, ' +' . $toStart);
+
+            if (!$this->collapseRanges || 1 !== $toRange) {
+                \fwrite($output, ',' . $toRange);
+            }
+
+            \fwrite($output, " @@\n");
+        } else {
+            \fwrite($output, "@@ @@\n");
+        }
+
+        for ($i = $diffStartIndex; $i < $diffEndIndex; ++$i) {
+            if ($diff[$i][1] === Differ::ADDED) {
+                \fwrite($output, '+' . $diff[$i][0]);
+            } elseif ($diff[$i][1] === Differ::REMOVED) {
+                \fwrite($output, '-' . $diff[$i][0]);
+            } elseif ($diff[$i][1] === Differ::OLD) {
+                \fwrite($output, ' ' . $diff[$i][0]);
+            } elseif ($diff[$i][1] === Differ::NO_LINE_END_EOF_WARNING) {
+                \fwrite($output, "\n"); // $diff[$i][0]
+            } else { /* Not changed (old) Differ::OLD or Warning Differ::DIFF_LINE_END_WARNING */
+                \fwrite($output, ' ' . $diff[$i][0]);
+            }
+        }
+    }
+}

vendor/sebastian/diff/src/Parser.php

@@ -0,0 +1,106 @@
+<?php declare(strict_types=1);
+/*
+ * This file is part of sebastian/diff.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace SebastianBergmann\Diff;
+
+/**
+ * Unified diff parser.
+ */
+final class Parser
+{
+    /**
+     * @param string $string
+     *
+     * @return Diff[]
+     */
+    public function parse(string $string): array
+    {
+        $lines = \preg_split('(\r\n|\r|\n)', $string);
+
+        if (!empty($lines) && $lines[\count($lines) - 1] === '') {
+            \array_pop($lines);
+        }
+
+        $lineCount = \count($lines);
+        $diffs     = [];
+        $diff      = null;
+        $collected = [];
+
+        for ($i = 0; $i < $lineCount; ++$i) {
+            if (\preg_match('(^---\\s+(?P<file>\\S+))', $lines[$i], $fromMatch) &&
+                \preg_match('(^\\+\\+\\+\\s+(?P<file>\\S+))', $lines[$i + 1], $toMatch)) {
+                if ($diff !== null) {
+                    $this->parseFileDiff($diff, $collected);
+
+                    $diffs[]   = $diff;
+                    $collected = [];
+                }
+
+                $diff = new Diff($fromMatch['file'], $toMatch['file']);
+
+                ++$i;
+            } else {
+                if (\preg_match('/^(?:diff --git |index [\da-f\.]+|[+-]{3} [ab])/', $lines[$i])) {
+                    continue;
+                }
+
+                $collected[] = $lines[$i];
+            }
+        }
+
+        if ($diff !== null && \count($collected)) {
+            $this->parseFileDiff($diff, $collected);
+
+            $diffs[] = $diff;
+        }
+
+        return $diffs;
+    }
+
+    private function parseFileDiff(Diff $diff, array $lines): void
+    {
+        $chunks = [];
+        $chunk  = null;
+
+        foreach ($lines as $line) {
+            if (\preg_match('/^@@\s+-(?P<start>\d+)(?:,\s*(?P<startrange>\d+))?\s+\+(?P<end>\d+)(?:,\s*(?P<endrange>\d+))?\s+@@/', $line, $match)) {
+                $chunk = new Chunk(
+                    (int) $match['start'],
+                    isset($match['startrange']) ? \max(1, (int) $match['startrange']) : 1,
+                    (int) $match['end'],
+                    isset($match['endrange']) ? \max(1, (int) $match['endrange']) : 1
+                );
+
+                $chunks[]  = $chunk;
+                $diffLines = [];
+
+                continue;
+            }
+
+            if (\preg_match('/^(?P<type>[+ -])?(?P<line>.*)/', $line, $match)) {
+                $type = Line::UNCHANGED;
+
+                if ($match['type'] === '+') {
+                    $type = Line::ADDED;
+                } elseif ($match['type'] === '-') {
+                    $type = Line::REMOVED;
+                }
+
+                $diffLines[] = new Line($type, $match['line']);
+
+                if (null !== $chunk) {
+                    $chunk->setLines($diffLines);
+                }
+            }
+        }
+
+        $diff->setChunks($chunks);
+    }
+}

vendor/sebastian/diff/src/TimeEfficientLongestCommonSubsequenceCalculator.php

@@ -0,0 +1,66 @@
+<?php declare(strict_types=1);
+/*
+ * This file is part of sebastian/diff.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace SebastianBergmann\Diff;
+
+final class TimeEfficientLongestCommonSubsequenceCalculator implements LongestCommonSubsequenceCalculator
+{
+    /**
+     * {@inheritdoc}
+     */
+    public function calculate(array $from, array $to): array
+    {
+        $common     = [];
+        $fromLength = \count($from);
+        $toLength   = \count($to);
+        $width      = $fromLength + 1;
+        $matrix     = new \SplFixedArray($width * ($toLength + 1));
+
+        for ($i = 0; $i <= $fromLength; ++$i) {
+            $matrix[$i] = 0;
+        }
+
+        for ($j = 0; $j <= $toLength; ++$j) {
+            $matrix[$j * $width] = 0;
+        }
+
+        for ($i = 1; $i <= $fromLength; ++$i) {
+            for ($j = 1; $j <= $toLength; ++$j) {
+                $o          = ($j * $width) + $i;
+                $matrix[$o] = \max(
+                    $matrix[$o - 1],
+                    $matrix[$o - $width],
+                    $from[$i - 1] === $to[$j - 1] ? $matrix[$o - $width - 1] + 1 : 0
+                );
+            }
+        }
+
+        $i = $fromLength;
+        $j = $toLength;
+
+        while ($i > 0 && $j > 0) {
+            if ($from[$i - 1] === $to[$j - 1]) {
+                $common[] = $from[$i - 1];
+                --$i;
+                --$j;
+            } else {
+                $o = ($j * $width) + $i;
+
+                if ($matrix[$o - $width] > $matrix[$o - 1]) {
+                    --$j;
+                } else {
+                    --$i;
+                }
+            }
+        }
+
+        return \array_reverse($common);
+    }
+}

vendor/sebastian/diff/tests/ChunkTest.php

@@ -0,0 +1,73 @@
+<?php declare(strict_types=1);
+/*
+ * This file is part of sebastian/diff.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace SebastianBergmann\Diff;
+
+use PHPUnit\Framework\TestCase;
+
+/**
+ * @covers SebastianBergmann\Diff\Chunk
+ */
+final class ChunkTest extends TestCase
+{
+    /**
+     * @var Chunk
+     */
+    private $chunk;
+
+    protected function setUp(): void
+    {
+        $this->chunk = new Chunk;
+    }
+
+    public function testHasInitiallyNoLines(): void
+    {
+        $this->assertSame([], $this->chunk->getLines());
+    }
+
+    public function testCanBeCreatedWithoutArguments(): void
+    {
+        $this->assertInstanceOf(Chunk::class, $this->chunk);
+    }
+
+    public function testStartCanBeRetrieved(): void
+    {
+        $this->assertSame(0, $this->chunk->getStart());
+    }
+
+    public function testStartRangeCanBeRetrieved(): void
+    {
+        $this->assertSame(1, $this->chunk->getStartRange());
+    }
+
+    public function testEndCanBeRetrieved(): void
+    {
+        $this->assertSame(0, $this->chunk->getEnd());
+    }
+
+    public function testEndRangeCanBeRetrieved(): void
+    {
+        $this->assertSame(1, $this->chunk->getEndRange());
+    }
+
+    public function testLinesCanBeRetrieved(): void
+    {
+        $this->assertSame([], $this->chunk->getLines());
+    }
+
+    public function testLinesCanBeSet(): void
+    {
+        $lines = [new Line(Line::ADDED, 'added'), new Line(Line::REMOVED, 'removed')];
+
+        $this->chunk->setLines($lines);
+
+        $this->assertSame($lines, $this->chunk->getLines());
+    }
+}

vendor/sebastian/diff/tests/DiffTest.php

@@ -0,0 +1,55 @@
+<?php declare(strict_types=1);
+/*
+ * This file is part of sebastian/diff.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace SebastianBergmann\Diff;
+
+use PHPUnit\Framework\TestCase;
+
+/**
+ * @covers SebastianBergmann\Diff\Diff
+ *
+ * @uses SebastianBergmann\Diff\Chunk
+ */
+final class DiffTest extends TestCase
+{
+    public function testGettersAfterConstructionWithDefault(): void
+    {
+        $from = 'line1a';
+        $to   = 'line2a';
+        $diff = new Diff($from, $to);
+
+        $this->assertSame($from, $diff->getFrom());
+        $this->assertSame($to, $diff->getTo());
+        $this->assertSame([], $diff->getChunks(), 'Expect chunks to be default value "array()".');
+    }
+
+    public function testGettersAfterConstructionWithChunks(): void
+    {
+        $from   = 'line1b';
+        $to     = 'line2b';
+        $chunks = [new Chunk(), new Chunk(2, 3)];
+
+        $diff = new Diff($from, $to, $chunks);
+
+        $this->assertSame($from, $diff->getFrom());
+        $this->assertSame($to, $diff->getTo());
+        $this->assertSame($chunks, $diff->getChunks(), 'Expect chunks to be passed value.');
+    }
+
+    public function testSetChunksAfterConstruction(): void
+    {
+        $diff = new Diff('line1c', 'line2c');
+        $this->assertSame([], $diff->getChunks(), 'Expect chunks to be default value "array()".');
+
+        $chunks = [new Chunk(), new Chunk(2, 3)];
+        $diff->setChunks($chunks);
+        $this->assertSame($chunks, $diff->getChunks(), 'Expect chunks to be passed value.');
+    }
+}

vendor/sebastian/diff/tests/DifferTest.php

@@ -0,0 +1,444 @@
+<?php declare(strict_types=1);
+/*
+ * This file is part of sebastian/diff.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace SebastianBergmann\Diff;
+
+use PHPUnit\Framework\TestCase;
+use SebastianBergmann\Diff\Output\UnifiedDiffOutputBuilder;
+
+/**
+ * @covers SebastianBergmann\Diff\Differ
+ * @covers SebastianBergmann\Diff\Output\UnifiedDiffOutputBuilder
+ *
+ * @uses SebastianBergmann\Diff\MemoryEfficientLongestCommonSubsequenceCalculator
+ * @uses SebastianBergmann\Diff\TimeEfficientLongestCommonSubsequenceCalculator
+ * @uses SebastianBergmann\Diff\Output\AbstractChunkOutputBuilder
+ */
+final class DifferTest extends TestCase
+{
+    /**
+     * @var Differ
+     */
+    private $differ;
+
+    protected function setUp(): void
+    {
+        $this->differ = new Differ;
+    }
+
+    /**
+     * @param array        $expected
+     * @param array|string $from
+     * @param array|string $to
+     *
+     * @dataProvider arrayProvider
+     */
+    public function testArrayRepresentationOfDiffCanBeRenderedUsingTimeEfficientLcsImplementation(array $expected, $from, $to): void
+    {
+        $this->assertSame($expected, $this->differ->diffToArray($from, $to, new TimeEfficientLongestCommonSubsequenceCalculator));
+    }
+
+    /**
+     * @param string $expected
+     * @param string $from
+     * @param string $to
+     *
+     * @dataProvider textProvider
+     */
+    public function testTextRepresentationOfDiffCanBeRenderedUsingTimeEfficientLcsImplementation(string $expected, string $from, string $to): void
+    {
+        $this->assertSame($expected, $this->differ->diff($from, $to, new TimeEfficientLongestCommonSubsequenceCalculator));
+    }
+
+    /**
+     * @param array        $expected
+     * @param array|string $from
+     * @param array|string $to
+     *
+     * @dataProvider arrayProvider
+     */
+    public function testArrayRepresentationOfDiffCanBeRenderedUsingMemoryEfficientLcsImplementation(array $expected, $from, $to): void
+    {
+        $this->assertSame($expected, $this->differ->diffToArray($from, $to, new MemoryEfficientLongestCommonSubsequenceCalculator));
+    }
+
+    /**
+     * @param string $expected
+     * @param string $from
+     * @param string $to
+     *
+     * @dataProvider textProvider
+     */
+    public function testTextRepresentationOfDiffCanBeRenderedUsingMemoryEfficientLcsImplementation(string $expected, string $from, string $to): void
+    {
+        $this->assertSame($expected, $this->differ->diff($from, $to, new MemoryEfficientLongestCommonSubsequenceCalculator));
+    }
+
+    public function testTypesOtherThanArrayAndStringCanBePassed(): void
+    {
+        $this->assertSame(
+            "--- Original\n+++ New\n@@ @@\n-1\n+2\n",
+            $this->differ->diff(1, 2)
+        );
+    }
+
+    public function testArrayDiffs(): void
+    {
+        $this->assertSame(
+            '--- Original
++++ New
+@@ @@
+-one
++two
+',
+            $this->differ->diff(['one'], ['two'])
+        );
+    }
+
+    public function arrayProvider(): array
+    {
+        return [
+            [
+                [
+                    ['a', Differ::REMOVED],
+                    ['b', Differ::ADDED],
+                ],
+                'a',
+                'b',
+            ],
+            [
+                [
+                    ['ba', Differ::REMOVED],
+                    ['bc', Differ::ADDED],
+                ],
+                'ba',
+                'bc',
+            ],
+            [
+                [
+                    ['ab', Differ::REMOVED],
+                    ['cb', Differ::ADDED],
+                ],
+                'ab',
+                'cb',
+            ],
+            [
+                [
+                    ['abc', Differ::REMOVED],
+                    ['adc', Differ::ADDED],
+                ],
+                'abc',
+                'adc',
+            ],
+            [
+                [
+                    ['ab', Differ::REMOVED],
+                    ['abc', Differ::ADDED],
+                ],
+                'ab',
+                'abc',
+            ],
+            [
+                [
+                    ['bc', Differ::REMOVED],
+                    ['abc', Differ::ADDED],
+                ],
+                'bc',
+                'abc',
+            ],
+            [
+                [
+                    ['abc', Differ::REMOVED],
+                    ['abbc', Differ::ADDED],
+                ],
+                'abc',
+                'abbc',
+            ],
+            [
+                [
+                    ['abcdde', Differ::REMOVED],
+                    ['abcde', Differ::ADDED],
+                ],
+                'abcdde',
+                'abcde',
+            ],
+            'same start' => [
+                [
+                    [17, Differ::OLD],
+                    ['b', Differ::REMOVED],
+                    ['d', Differ::ADDED],
+                ],
+                [30 => 17, 'a' => 'b'],
+                [30 => 17, 'c' => 'd'],
+            ],
+            'same end' => [
+                [
+                    [1, Differ::REMOVED],
+                    [2, Differ::ADDED],
+                    ['b', Differ::OLD],
+                ],
+                [1 => 1, 'a' => 'b'],
+                [1 => 2, 'a' => 'b'],
+            ],
+            'same start (2), same end (1)' => [
+                [
+                    [17, Differ::OLD],
+                    [2, Differ::OLD],
+                    [4, Differ::REMOVED],
+                    ['a', Differ::ADDED],
+                    [5, Differ::ADDED],
+                    ['x', Differ::OLD],
+                ],
+                [30 => 17, 1 => 2, 2 => 4, 'z' => 'x'],
+                [30 => 17, 1 => 2, 3 => 'a', 2 => 5, 'z' => 'x'],
+            ],
+            'same' => [
+                [
+                    ['x', Differ::OLD],
+                ],
+                ['z' => 'x'],
+                ['z' => 'x'],
+            ],
+            'diff' => [
+                [
+                    ['y', Differ::REMOVED],
+                    ['x', Differ::ADDED],
+                ],
+                ['x' => 'y'],
+                ['z' => 'x'],
+            ],
+            'diff 2' => [
+                [
+                    ['y', Differ::REMOVED],
+                    ['b', Differ::REMOVED],
+                    ['x', Differ::ADDED],
+                    ['d', Differ::ADDED],
+                ],
+                ['x' => 'y', 'a' => 'b'],
+                ['z' => 'x', 'c' => 'd'],
+            ],
+            'test line diff detection' => [
+                [
+                    [
+                        "#Warning: Strings contain different line endings!\n",
+                        Differ::DIFF_LINE_END_WARNING,
+                    ],
+                    [
+                        "<?php\r\n",
+                        Differ::REMOVED,
+                    ],
+                    [
+                        "<?php\n",
+                        Differ::ADDED,
+                    ],
+                ],
+                "<?php\r\n",
+                "<?php\n",
+            ],
+            'test line diff detection in array input' => [
+                [
+                    [
+                        "#Warning: Strings contain different line endings!\n",
+                        Differ::DIFF_LINE_END_WARNING,
+                    ],
+                    [
+                        "<?php\r\n",
+                        Differ::REMOVED,
+                    ],
+                    [
+                        "<?php\n",
+                        Differ::ADDED,
+                    ],
+                ],
+                ["<?php\r\n"],
+                ["<?php\n"],
+            ],
+        ];
+    }
+
+    public function textProvider(): array
+    {
+        return [
+            [
+                "--- Original\n+++ New\n@@ @@\n-a\n+b\n",
+                'a',
+                'b',
+            ],
+            [
+                "--- Original\n+++ New\n@@ @@\n-A\n+A1\n B\n",
+                "A\nB",
+                "A1\nB",
+            ],
+            [
+                <<<EOF
+--- Original
++++ New
+@@ @@
+ a
+-b
++p
+ c
+ d
+ e
+@@ @@
+ g
+ h
+ i
+-j
++w
+ k
+
+EOF
+            ,
+                "a\nb\nc\nd\ne\nf\ng\nh\ni\nj\nk\n",
+                "a\np\nc\nd\ne\nf\ng\nh\ni\nw\nk\n",
+            ],
+            [
+                <<<EOF
+--- Original
++++ New
+@@ @@
+-A
++B
+ 1
+ 2
+ 3
+
+EOF
+            ,
+                "A\n1\n2\n3\n4\n5\n6\n1\n1\n1\n1\n1\n1\n1\n1\n1\n1\n1\n1\n1\n1\n1\n",
+                "B\n1\n2\n3\n4\n5\n6\n1\n1\n1\n1\n1\n1\n1\n1\n1\n1\n1\n1\n1\n1\n1\n",
+            ],
+            [
+                "--- Original\n+++ New\n@@ @@\n #Warning: Strings contain different line endings!\n-<?php\r\n+<?php\n A\n",
+                "<?php\r\nA\n",
+                "<?php\nA\n",
+            ],
+            [
+                "--- Original\n+++ New\n@@ @@\n #Warning: Strings contain different line endings!\n-a\r\n+\n+c\r\n",
+                "a\r\n",
+                "\nc\r",
+            ],
+        ];
+    }
+
+    public function testDiffToArrayInvalidFromType(): void
+    {
+        $this->expectException(InvalidArgumentException::class);
+        $this->expectExceptionMessageRegExp('#^"from" must be an array or string\.$#');
+
+        $this->differ->diffToArray(null, '');
+    }
+
+    public function testDiffInvalidToType(): void
+    {
+        $this->expectException(InvalidArgumentException::class);
+        $this->expectExceptionMessageRegExp('#^"to" must be an array or string\.$#');
+
+        $this->differ->diffToArray('', new \stdClass);
+    }
+
+    /**
+     * @param array  $expected
+     * @param string $input
+     *
+     * @dataProvider provideSplitStringByLinesCases
+     */
+    public function testSplitStringByLines(array $expected, string $input): void
+    {
+        $reflection = new \ReflectionObject($this->differ);
+        $method     = $reflection->getMethod('splitStringByLines');
+        $method->setAccessible(true);
+
+        $this->assertSame($expected, $method->invoke($this->differ, $input));
+    }
+
+    public function provideSplitStringByLinesCases(): array
+    {
+        return [
+            [
+                [],
+                '',
+            ],
+            [
+                ['a'],
+                'a',
+            ],
+            [
+                ["a\n"],
+                "a\n",
+            ],
+            [
+                ["a\r"],
+                "a\r",
+            ],
+            [
+                ["a\r\n"],
+                "a\r\n",
+            ],
+            [
+                ["\n"],
+                "\n",
+            ],
+            [
+                ["\r"],
+                "\r",
+            ],
+            [
+                ["\r\n"],
+                "\r\n",
+            ],
+            [
+                [
+                    "A\n",
+                    "B\n",
+                    "\n",
+                    "C\n",
+                ],
+                "A\nB\n\nC\n",
+            ],
+            [
+                [
+                    "A\r\n",
+                    "B\n",
+                    "\n",
+                    "C\r",
+                ],
+                "A\r\nB\n\nC\r",
+            ],
+            [
+                [
+                    "\n",
+                    "A\r\n",
+                    "B\n",
+                    "\n",
+                    'C',
+                ],
+                "\nA\r\nB\n\nC",
+            ],
+        ];
+    }
+
+    public function testConstructorInvalidArgInt(): void
+    {
+        $this->expectException(InvalidArgumentException::class);
+        $this->expectExceptionMessageRegExp('/^Expected builder to be an instance of DiffOutputBuilderInterface, <null> or a string, got integer "1"\.$/');
+
+        new Differ(1);
+    }
+
+    public function testConstructorInvalidArgObject(): void
+    {
+        $this->expectException(InvalidArgumentException::class);
+        $this->expectExceptionMessageRegExp('/^Expected builder to be an instance of DiffOutputBuilderInterface, <null> or a string, got instance of "SplFileInfo"\.$/');
+
+        new Differ(new \SplFileInfo(__FILE__));
+    }
+}

vendor/sebastian/diff/tests/Exception/ConfigurationExceptionTest.php

@@ -0,0 +1,41 @@
+<?php declare(strict_types=1);
+/*
+ * This file is part of sebastian/diff.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace SebastianBergmann\Diff;
+
+use PHPUnit\Framework\TestCase;
+
+/**
+ * @covers SebastianBergmann\Diff\ConfigurationException
+ */
+final class ConfigurationExceptionTest extends TestCase
+{
+    public function testConstructWithDefaults(): void
+    {
+        $e = new ConfigurationException('test', 'A', 'B');
+
+        $this->assertSame(0, $e->getCode());
+        $this->assertNull($e->getPrevious());
+        $this->assertSame('Option "test" must be A, got "string#B".', $e->getMessage());
+    }
+
+    public function testConstruct(): void
+    {
+        $e = new ConfigurationException(
+            'test',
+            'integer',
+            new \SplFileInfo(__FILE__),
+            789,
+            new \BadMethodCallException(__METHOD__)
+        );
+
+        $this->assertSame('Option "test" must be integer, got "SplFileInfo".', $e->getMessage());
+    }
+}

vendor/sebastian/diff/tests/Exception/InvalidArgumentExceptionTest.php

@@ -0,0 +1,33 @@
+<?php declare(strict_types=1);
+/*
+ * This file is part of sebastian/diff.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace SebastianBergmann\Diff;
+
+use PHPUnit\Framework\TestCase;
+
+/**
+ * @covers SebastianBergmann\Diff\InvalidArgumentException
+ */
+final class InvalidArgumentExceptionTest extends TestCase
+{
+    public function testInvalidArgumentException(): void
+    {
+        $previousException = new \LogicException();
+        $message           = 'test';
+        $code              = 123;
+
+        $exception = new InvalidArgumentException($message, $code, $previousException);
+
+        $this->assertInstanceOf(Exception::class, $exception);
+        $this->assertSame($message, $exception->getMessage());
+        $this->assertSame($code, $exception->getCode());
+        $this->assertSame($previousException, $exception->getPrevious());
+    }
+}

vendor/sebastian/diff/tests/LineTest.php

@@ -0,0 +1,44 @@
+<?php declare(strict_types=1);
+/*
+ * This file is part of sebastian/diff.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace SebastianBergmann\Diff;
+
+use PHPUnit\Framework\TestCase;
+
+/**
+ * @covers SebastianBergmann\Diff\Line
+ */
+final class LineTest extends TestCase
+{
+    /**
+     * @var Line
+     */
+    private $line;
+
+    protected function setUp(): void
+    {
+        $this->line = new Line;
+    }
+
+    public function testCanBeCreatedWithoutArguments(): void
+    {
+        $this->assertInstanceOf(Line::class, $this->line);
+    }
+
+    public function testTypeCanBeRetrieved(): void
+    {
+        $this->assertSame(Line::UNCHANGED, $this->line->getType());
+    }
+
+    public function testContentCanBeRetrieved(): void
+    {
+        $this->assertSame('', $this->line->getContent());
+    }
+}

vendor/sebastian/diff/tests/LongestCommonSubsequenceTest.php

@@ -0,0 +1,201 @@
+<?php declare(strict_types=1);
+/*
+ * This file is part of sebastian/diff.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace SebastianBergmann\Diff;
+
+use PHPUnit\Framework\TestCase;
+
+/**
+ * @coversNothing
+ */
+abstract class LongestCommonSubsequenceTest extends TestCase
+{
+    /**
+     * @var LongestCommonSubsequenceCalculator
+     */
+    private $implementation;
+
+    /**
+     * @var string
+     */
+    private $memoryLimit;
+
+    /**
+     * @var int[]
+     */
+    private $stress_sizes = [1, 2, 3, 100, 500, 1000, 2000];
+
+    protected function setUp(): void
+    {
+        $this->memoryLimit = \ini_get('memory_limit');
+        \ini_set('memory_limit', '256M');
+
+        $this->implementation = $this->createImplementation();
+    }
+
+    protected function tearDown(): void
+    {
+        \ini_set('memory_limit', $this->memoryLimit);
+    }
+
+    public function testBothEmpty(): void
+    {
+        $from   = [];
+        $to     = [];
+        $common = $this->implementation->calculate($from, $to);
+
+        $this->assertSame([], $common);
+    }
+
+    public function testIsStrictComparison(): void
+    {
+        $from = [
+            false, 0, 0.0, '', null, [],
+            true, 1, 1.0, 'foo', ['foo', 'bar'], ['foo' => 'bar'],
+        ];
+        $to     = $from;
+        $common = $this->implementation->calculate($from, $to);
+
+        $this->assertSame($from, $common);
+
+        $to = [
+            false, false, false, false, false, false,
+            true, true, true, true, true, true,
+        ];
+
+        $expected = [
+            false,
+            true,
+        ];
+
+        $common = $this->implementation->calculate($from, $to);
+
+        $this->assertSame($expected, $common);
+    }
+
+    public function testEqualSequences(): void
+    {
+        foreach ($this->stress_sizes as $size) {
+            $range  = \range(1, $size);
+            $from   = $range;
+            $to     = $range;
+            $common = $this->implementation->calculate($from, $to);
+
+            $this->assertSame($range, $common);
+        }
+    }
+
+    public function testDistinctSequences(): void
+    {
+        $from   = ['A'];
+        $to     = ['B'];
+        $common = $this->implementation->calculate($from, $to);
+        $this->assertSame([], $common);
+
+        $from   = ['A', 'B', 'C'];
+        $to     = ['D', 'E', 'F'];
+        $common = $this->implementation->calculate($from, $to);
+        $this->assertSame([], $common);
+
+        foreach ($this->stress_sizes as $size) {
+            $from   = \range(1, $size);
+            $to     = \range($size + 1, $size * 2);
+            $common = $this->implementation->calculate($from, $to);
+            $this->assertSame([], $common);
+        }
+    }
+
+    public function testCommonSubsequence(): void
+    {
+        $from     = ['A',      'C',      'E', 'F', 'G'];
+        $to       = ['A', 'B',      'D', 'E',           'H'];
+        $expected = ['A',                'E'];
+        $common   = $this->implementation->calculate($from, $to);
+        $this->assertSame($expected, $common);
+
+        $from     = ['A',      'C',      'E', 'F', 'G'];
+        $to       = ['B', 'C', 'D', 'E', 'F',      'H'];
+        $expected = ['C',                'E', 'F'];
+        $common   = $this->implementation->calculate($from, $to);
+        $this->assertSame($expected, $common);
+
+        foreach ($this->stress_sizes as $size) {
+            $from     = $size < 2 ? [1] : \range(1, $size + 1, 2);
+            $to       = $size < 3 ? [1] : \range(1, $size + 1, 3);
+            $expected = $size < 6 ? [1] : \range(1, $size + 1, 6);
+            $common   = $this->implementation->calculate($from, $to);
+
+            $this->assertSame($expected, $common);
+        }
+    }
+
+    public function testSingleElementSubsequenceAtStart(): void
+    {
+        foreach ($this->stress_sizes as $size) {
+            $from   = \range(1, $size);
+            $to     = \array_slice($from, 0, 1);
+            $common = $this->implementation->calculate($from, $to);
+
+            $this->assertSame($to, $common);
+        }
+    }
+
+    public function testSingleElementSubsequenceAtMiddle(): void
+    {
+        foreach ($this->stress_sizes as $size) {
+            $from   = \range(1, $size);
+            $to     = \array_slice($from, (int) ($size / 2), 1);
+            $common = $this->implementation->calculate($from, $to);
+
+            $this->assertSame($to, $common);
+        }
+    }
+
+    public function testSingleElementSubsequenceAtEnd(): void
+    {
+        foreach ($this->stress_sizes as $size) {
+            $from   = \range(1, $size);
+            $to     = \array_slice($from, $size - 1, 1);
+            $common = $this->implementation->calculate($from, $to);
+
+            $this->assertSame($to, $common);
+        }
+    }
+
+    public function testReversedSequences(): void
+    {
+        $from     = ['A', 'B'];
+        $to       = ['B', 'A'];
+        $expected = ['A'];
+        $common   = $this->implementation->calculate($from, $to);
+        $this->assertSame($expected, $common);
+
+        foreach ($this->stress_sizes as $size) {
+            $from   = \range(1, $size);
+            $to     = \array_reverse($from);
+            $common = $this->implementation->calculate($from, $to);
+
+            $this->assertSame([1], $common);
+        }
+    }
+
+    public function testStrictTypeCalculate(): void
+    {
+        $diff = $this->implementation->calculate(['5'], ['05']);
+
+        $this->assertIsArray($diff);
+        $this->assertCount(0, $diff);
+    }
+
+    /**
+     * @return LongestCommonSubsequenceCalculator
+     */
+    abstract protected function createImplementation(): LongestCommonSubsequenceCalculator;
+}

vendor/sebastian/diff/tests/MemoryEfficientImplementationTest.php

@@ -0,0 +1,22 @@
+<?php declare(strict_types=1);
+/*
+ * This file is part of sebastian/diff.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace SebastianBergmann\Diff;
+
+/**
+ * @covers SebastianBergmann\Diff\MemoryEfficientLongestCommonSubsequenceCalculator
+ */
+final class MemoryEfficientImplementationTest extends LongestCommonSubsequenceTest
+{
+    protected function createImplementation(): LongestCommonSubsequenceCalculator
+    {
+        return new MemoryEfficientLongestCommonSubsequenceCalculator;
+    }
+}

vendor/sebastian/diff/tests/Output/AbstractChunkOutputBuilderTest.php

@@ -0,0 +1,152 @@
+<?php declare(strict_types=1);
+/*
+ * This file is part of sebastian/diff.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace SebastianBergmann\Diff\Output;
+
+use PHPUnit\Framework\TestCase;
+use SebastianBergmann\Diff\Differ;
+
+/**
+ * @covers SebastianBergmann\Diff\Output\AbstractChunkOutputBuilder
+ *
+ * @uses SebastianBergmann\Diff\Differ
+ * @uses SebastianBergmann\Diff\Output\UnifiedDiffOutputBuilder
+ * @uses SebastianBergmann\Diff\TimeEfficientLongestCommonSubsequenceCalculator
+ */
+final class AbstractChunkOutputBuilderTest extends TestCase
+{
+    /**
+     * @param array  $expected
+     * @param string $from
+     * @param string $to
+     * @param int    $lineThreshold
+     *
+     * @dataProvider provideGetCommonChunks
+     */
+    public function testGetCommonChunks(array $expected, string $from, string $to, int $lineThreshold = 5): void
+    {
+        $output = new class extends AbstractChunkOutputBuilder {
+            public function getDiff(array $diff): string
+            {
+                return '';
+            }
+
+            public function getChunks(array $diff, $lineThreshold)
+            {
+                return $this->getCommonChunks($diff, $lineThreshold);
+            }
+        };
+
+        $this->assertSame(
+            $expected,
+            $output->getChunks((new Differ)->diffToArray($from, $to), $lineThreshold)
+        );
+    }
+
+    public function provideGetCommonChunks(): array
+    {
+        return[
+            'same (with default threshold)' => [
+                [],
+                'A',
+                'A',
+            ],
+            'same (threshold 0)' => [
+                [0 => 0],
+                'A',
+                'A',
+                0,
+            ],
+            'empty' => [
+                [],
+                '',
+                '',
+            ],
+            'single line diff' => [
+                [],
+                'A',
+                'B',
+            ],
+            'below threshold I' => [
+                [],
+                "A\nX\nC",
+                "A\nB\nC",
+            ],
+            'below threshold II' => [
+                [],
+                "A\n\n\n\nX\nC",
+                "A\n\n\n\nB\nC",
+            ],
+            'below threshold III' => [
+                [0 => 5],
+                "A\n\n\n\n\n\nB",
+                "A\n\n\n\n\n\nA",
+            ],
+            'same start' => [
+                [0 => 5],
+                "A\n\n\n\n\n\nX\nC",
+                "A\n\n\n\n\n\nB\nC",
+            ],
+            'same start long' => [
+                [0 => 13],
+                "\n\n\n\n\n\n\n\n\n\n\n\n\n\nA",
+                "\n\n\n\n\n\n\n\n\n\n\n\n\n\nB",
+            ],
+            'same part in between' => [
+                [2 => 8],
+                "A\n\n\n\n\n\n\nX\nY\nZ\n\n",
+                "B\n\n\n\n\n\n\nX\nA\nZ\n\n",
+            ],
+            'same trailing' => [
+                [2 => 14],
+                "A\n\n\n\n\n\n\n\n\n\n\n\n\n\n",
+                "B\n\n\n\n\n\n\n\n\n\n\n\n\n\n",
+            ],
+            'same part in between, same trailing' => [
+                [2 => 7, 10 => 15],
+                "A\n\n\n\n\n\n\nA\n\n\n\n\n\n\n",
+                "B\n\n\n\n\n\n\nB\n\n\n\n\n\n\n",
+            ],
+            'below custom threshold I' => [
+                [],
+                "A\n\nB",
+                "A\n\nD",
+                2,
+            ],
+            'custom threshold I' => [
+                [0 => 1],
+                "A\n\nB",
+                "A\n\nD",
+                1,
+            ],
+            'custom threshold II' => [
+                [],
+                "A\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n",
+                "A\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n",
+                19,
+            ],
+            [
+                [3 => 9],
+                "a\nb\nc\nd\ne\nf\ng\nh\ni\nj\nk",
+                "a\np\nc\nd\ne\nf\ng\nh\ni\nw\nk",
+            ],
+            [
+                [0 => 5, 8 => 13],
+                "A\nA\nA\nA\nA\nA\nX\nC\nC\nC\nC\nC\nC",
+                "A\nA\nA\nA\nA\nA\nB\nC\nC\nC\nC\nC\nC",
+            ],
+            [
+                [0 => 5, 8 => 13],
+                "A\nA\nA\nA\nA\nA\nX\nC\nC\nC\nC\nC\nC\nX",
+                "A\nA\nA\nA\nA\nA\nB\nC\nC\nC\nC\nC\nC\nY",
+            ],
+        ];
+    }
+}

vendor/sebastian/diff/tests/Output/DiffOnlyOutputBuilderTest.php

@@ -0,0 +1,76 @@
+<?php declare(strict_types=1);
+/*
+ * This file is part of sebastian/diff.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace SebastianBergmann\Diff\Output;
+
+use PHPUnit\Framework\TestCase;
+use SebastianBergmann\Diff\Differ;
+
+/**
+ * @covers SebastianBergmann\Diff\Output\DiffOnlyOutputBuilder
+ *
+ * @uses SebastianBergmann\Diff\Differ
+ * @uses SebastianBergmann\Diff\TimeEfficientLongestCommonSubsequenceCalculator
+ */
+final class DiffOnlyOutputBuilderTest extends TestCase
+{
+    /**
+     * @param string $expected
+     * @param string $from
+     * @param string $to
+     * @param string $header
+     *
+     * @dataProvider textForNoNonDiffLinesProvider
+     */
+    public function testDiffDoNotShowNonDiffLines(string $expected, string $from, string $to, string $header = ''): void
+    {
+        $differ = new Differ(new DiffOnlyOutputBuilder($header));
+
+        $this->assertSame($expected, $differ->diff($from, $to));
+    }
+
+    public function textForNoNonDiffLinesProvider(): array
+    {
+        return [
+            [
+                " #Warning: Strings contain different line endings!\n-A\r\n+B\n",
+                "A\r\n",
+                "B\n",
+            ],
+            [
+                "-A\n+B\n",
+                "\nA",
+                "\nB",
+            ],
+            [
+                '',
+                'a',
+                'a',
+            ],
+            [
+                "-A\n+C\n",
+                "A\n\n\nB",
+                "C\n\n\nB",
+            ],
+            [
+                "header\n",
+                'a',
+                'a',
+                'header',
+            ],
+            [
+                "header\n",
+                'a',
+                'a',
+                "header\n",
+            ],
+        ];
+    }
+}

vendor/sebastian/diff/tests/Output/Integration/StrictUnifiedDiffOutputBuilderIntegrationTest.php

@@ -0,0 +1,299 @@
+<?php declare(strict_types=1);
+/*
+ * This file is part of sebastian/diff.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace SebastianBergmann\Diff\Output;
+
+use PHPUnit\Framework\TestCase;
+use SebastianBergmann\Diff\Differ;
+use SebastianBergmann\Diff\Utils\FileUtils;
+use SebastianBergmann\Diff\Utils\UnifiedDiffAssertTrait;
+use Symfony\Component\Process\Process;
+
+/**
+ * @covers SebastianBergmann\Diff\Output\StrictUnifiedDiffOutputBuilder
+ *
+ * @uses SebastianBergmann\Diff\Differ
+ * @uses SebastianBergmann\Diff\TimeEfficientLongestCommonSubsequenceCalculator
+ *
+ * @requires OS Linux
+ */
+final class StrictUnifiedDiffOutputBuilderIntegrationTest extends TestCase
+{
+    use UnifiedDiffAssertTrait;
+
+    private $dir;
+
+    private $fileFrom;
+
+    private $fileTo;
+
+    private $filePatch;
+
+    protected function setUp(): void
+    {
+        $this->dir       = \realpath(__DIR__ . '/../../fixtures/out') . '/';
+        $this->fileFrom  = $this->dir . 'from.txt';
+        $this->fileTo    = $this->dir . 'to.txt';
+        $this->filePatch = $this->dir . 'diff.patch';
+
+        if (!\is_dir($this->dir)) {
+            throw new \RuntimeException('Integration test working directory not found.');
+        }
+
+        $this->cleanUpTempFiles();
+    }
+
+    protected function tearDown(): void
+    {
+        $this->cleanUpTempFiles();
+    }
+
+    /**
+     * Integration test
+     *
+     * - get a file pair
+     * - create a `diff` between the files
+     * - test applying the diff using `git apply`
+     * - test applying the diff using `patch`
+     *
+     * @param string $fileFrom
+     * @param string $fileTo
+     *
+     * @dataProvider provideFilePairs
+     */
+    public function testIntegrationUsingPHPFileInVendorGitApply(string $fileFrom, string $fileTo): void
+    {
+        $from = FileUtils::getFileContent($fileFrom);
+        $to   = FileUtils::getFileContent($fileTo);
+
+        $diff = (new Differ(new StrictUnifiedDiffOutputBuilder(['fromFile' => 'Original', 'toFile' => 'New'])))->diff($from, $to);
+
+        if ('' === $diff && $from === $to) {
+            // odd case: test after executing as it is more efficient than to read the files and check the contents every time
+            $this->addToAssertionCount(1);
+
+            return;
+        }
+
+        $this->doIntegrationTestGitApply($diff, $from, $to);
+    }
+
+    /**
+     * Integration test
+     *
+     * - get a file pair
+     * - create a `diff` between the files
+     * - test applying the diff using `git apply`
+     * - test applying the diff using `patch`
+     *
+     * @param string $fileFrom
+     * @param string $fileTo
+     *
+     * @dataProvider provideFilePairs
+     */
+    public function testIntegrationUsingPHPFileInVendorPatch(string $fileFrom, string $fileTo): void
+    {
+        $from = FileUtils::getFileContent($fileFrom);
+        $to   = FileUtils::getFileContent($fileTo);
+
+        $diff = (new Differ(new StrictUnifiedDiffOutputBuilder(['fromFile' => 'Original', 'toFile' => 'New'])))->diff($from, $to);
+
+        if ('' === $diff && $from === $to) {
+            // odd case: test after executing as it is more efficient than to read the files and check the contents every time
+            $this->addToAssertionCount(1);
+
+            return;
+        }
+
+        $this->doIntegrationTestPatch($diff, $from, $to);
+    }
+
+    /**
+     * @param string $expected
+     * @param string $from
+     * @param string $to
+     *
+     * @dataProvider provideOutputBuildingCases
+     * @dataProvider provideSample
+     * @dataProvider provideBasicDiffGeneration
+     */
+    public function testIntegrationOfUnitTestCasesGitApply(string $expected, string $from, string $to): void
+    {
+        $this->doIntegrationTestGitApply($expected, $from, $to);
+    }
+
+    /**
+     * @param string $expected
+     * @param string $from
+     * @param string $to
+     *
+     * @dataProvider provideOutputBuildingCases
+     * @dataProvider provideSample
+     * @dataProvider provideBasicDiffGeneration
+     */
+    public function testIntegrationOfUnitTestCasesPatch(string $expected, string $from, string $to): void
+    {
+        $this->doIntegrationTestPatch($expected, $from, $to);
+    }
+
+    public function provideOutputBuildingCases(): array
+    {
+        return StrictUnifiedDiffOutputBuilderDataProvider::provideOutputBuildingCases();
+    }
+
+    public function provideSample(): array
+    {
+        return StrictUnifiedDiffOutputBuilderDataProvider::provideSample();
+    }
+
+    public function provideBasicDiffGeneration(): array
+    {
+        return StrictUnifiedDiffOutputBuilderDataProvider::provideBasicDiffGeneration();
+    }
+
+    public function provideFilePairs(): array
+    {
+        $cases     = [];
+        $fromFile  = __FILE__;
+        $vendorDir = \realpath(__DIR__ . '/../../../vendor');
+
+        $fileIterator = new \RecursiveIteratorIterator(new \RecursiveDirectoryIterator($vendorDir, \RecursiveDirectoryIterator::SKIP_DOTS));
+
+        /** @var \SplFileInfo $file */
+        foreach ($fileIterator as $file) {
+            if ('php' !== $file->getExtension()) {
+                continue;
+            }
+
+            $toFile                                                                                         = $file->getPathname();
+            $cases[\sprintf("Diff file:\n\"%s\"\nvs.\n\"%s\"\n", \realpath($fromFile), \realpath($toFile))] = [$fromFile, $toFile];
+            $fromFile                                                                                       = $toFile;
+        }
+
+        return $cases;
+    }
+
+    /**
+     * Compare diff create by builder and against one create by `diff` command.
+     *
+     * @param string $diff
+     * @param string $from
+     * @param string $to
+     *
+     * @dataProvider provideBasicDiffGeneration
+     */
+    public function testIntegrationDiffOutputBuilderVersusDiffCommand(string $diff, string $from, string $to): void
+    {
+        $this->assertNotSame('', $diff);
+        $this->assertValidUnifiedDiffFormat($diff);
+
+        $this->assertNotFalse(\file_put_contents($this->fileFrom, $from));
+        $this->assertNotFalse(\file_put_contents($this->fileTo, $to));
+
+        $p = new Process(\sprintf('diff -u %s %s', \escapeshellarg($this->fileFrom), \escapeshellarg($this->fileTo)));
+        $p->run();
+        $this->assertSame(1, $p->getExitCode()); // note: Process assumes exit code 0 for `isSuccessful`, however `diff` uses the exit code `1` for success with diff
+
+        $output = $p->getOutput();
+
+        $diffLines    = \preg_split('/(.*\R)/', $diff, -1, PREG_SPLIT_DELIM_CAPTURE | PREG_SPLIT_NO_EMPTY);
+        $diffLines[0] = \preg_replace('#^\-\-\- .*#', '--- /' . $this->fileFrom, $diffLines[0], 1);
+        $diffLines[1] = \preg_replace('#^\+\+\+ .*#', '+++ /' . $this->fileFrom, $diffLines[1], 1);
+        $diff         = \implode('', $diffLines);
+
+        $outputLines    = \preg_split('/(.*\R)/', $output, -1, PREG_SPLIT_DELIM_CAPTURE | PREG_SPLIT_NO_EMPTY);
+        $outputLines[0] = \preg_replace('#^\-\-\- .*#', '--- /' . $this->fileFrom, $outputLines[0], 1);
+        $outputLines[1] = \preg_replace('#^\+\+\+ .*#', '+++ /' . $this->fileFrom, $outputLines[1], 1);
+        $output         = \implode('', $outputLines);
+
+        $this->assertSame($diff, $output);
+    }
+
+    private function doIntegrationTestGitApply(string $diff, string $from, string $to): void
+    {
+        $this->assertNotSame('', $diff);
+        $this->assertValidUnifiedDiffFormat($diff);
+
+        $diff = self::setDiffFileHeader($diff, $this->fileFrom);
+
+        $this->assertNotFalse(\file_put_contents($this->fileFrom, $from));
+        $this->assertNotFalse(\file_put_contents($this->filePatch, $diff));
+
+        $p = new Process(\sprintf(
+            'git --git-dir %s apply --check -v --unsafe-paths --ignore-whitespace %s',
+            \escapeshellarg($this->dir),
+            \escapeshellarg($this->filePatch)
+        ));
+
+        $p->run();
+
+        $this->assertProcessSuccessful($p);
+    }
+
+    private function doIntegrationTestPatch(string $diff, string $from, string $to): void
+    {
+        $this->assertNotSame('', $diff);
+        $this->assertValidUnifiedDiffFormat($diff);
+
+        $diff = self::setDiffFileHeader($diff, $this->fileFrom);
+
+        $this->assertNotFalse(\file_put_contents($this->fileFrom, $from));
+        $this->assertNotFalse(\file_put_contents($this->filePatch, $diff));
+
+        $command = \sprintf(
+            'patch -u --verbose --posix %s < %s',
+            \escapeshellarg($this->fileFrom),
+            \escapeshellarg($this->filePatch)
+        );
+
+        $p = new Process($command);
+        $p->run();
+
+        $this->assertProcessSuccessful($p);
+
+        $this->assertStringEqualsFile(
+            $this->fileFrom,
+            $to,
+            \sprintf('Patch command "%s".', $command)
+        );
+    }
+
+    private function assertProcessSuccessful(Process $p): void
+    {
+        $this->assertTrue(
+            $p->isSuccessful(),
+            \sprintf(
+                "Command exec. was not successful:\n\"%s\"\nOutput:\n\"%s\"\nStdErr:\n\"%s\"\nExit code %d.\n",
+                $p->getCommandLine(),
+                $p->getOutput(),
+                $p->getErrorOutput(),
+                $p->getExitCode()
+            )
+        );
+    }
+
+    private function cleanUpTempFiles(): void
+    {
+        @\unlink($this->fileFrom . '.orig');
+        @\unlink($this->fileFrom . '.rej');
+        @\unlink($this->fileFrom);
+        @\unlink($this->fileTo);
+        @\unlink($this->filePatch);
+    }
+
+    private static function setDiffFileHeader(string $diff, string $file): string
+    {
+        $diffLines    = \preg_split('/(.*\R)/', $diff, -1, PREG_SPLIT_DELIM_CAPTURE | PREG_SPLIT_NO_EMPTY);
+        $diffLines[0] = \preg_replace('#^\-\-\- .*#', '--- /' . $file, $diffLines[0], 1);
+        $diffLines[1] = \preg_replace('#^\+\+\+ .*#', '+++ /' . $file, $diffLines[1], 1);
+
+        return \implode('', $diffLines);
+    }
+}

vendor/sebastian/diff/tests/Output/Integration/UnifiedDiffOutputBuilderIntegrationTest.php

@@ -0,0 +1,163 @@
+<?php declare(strict_types=1);
+/*
+ * This file is part of sebastian/diff.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace SebastianBergmann\Diff\Output;
+
+use PHPUnit\Framework\TestCase;
+use SebastianBergmann\Diff\Utils\UnifiedDiffAssertTrait;
+use Symfony\Component\Process\Process;
+
+/**
+ * @covers SebastianBergmann\Diff\Output\UnifiedDiffOutputBuilder
+ *
+ * @uses SebastianBergmann\Diff\Differ
+ * @uses SebastianBergmann\Diff\TimeEfficientLongestCommonSubsequenceCalculator
+ *
+ * @requires OS Linux
+ */
+final class UnifiedDiffOutputBuilderIntegrationTest extends TestCase
+{
+    use UnifiedDiffAssertTrait;
+
+    private $dir;
+
+    private $fileFrom;
+
+    private $filePatch;
+
+    protected function setUp(): void
+    {
+        $this->dir       = \realpath(__DIR__ . '/../../fixtures/out/') . '/';
+        $this->fileFrom  = $this->dir . 'from.txt';
+        $this->filePatch = $this->dir . 'patch.txt';
+
+        $this->cleanUpTempFiles();
+    }
+
+    protected function tearDown(): void
+    {
+        $this->cleanUpTempFiles();
+    }
+
+    /**
+     * @dataProvider provideDiffWithLineNumbers
+     *
+     * @param mixed $expected
+     * @param mixed $from
+     * @param mixed $to
+     */
+    public function testDiffWithLineNumbersPath($expected, $from, $to): void
+    {
+        $this->doIntegrationTestPatch($expected, $from, $to);
+    }
+
+    /**
+     * @dataProvider provideDiffWithLineNumbers
+     *
+     * @param mixed $expected
+     * @param mixed $from
+     * @param mixed $to
+     */
+    public function testDiffWithLineNumbersGitApply($expected, $from, $to): void
+    {
+        $this->doIntegrationTestGitApply($expected, $from, $to);
+    }
+
+    public function provideDiffWithLineNumbers()
+    {
+        return \array_filter(
+            UnifiedDiffOutputBuilderDataProvider::provideDiffWithLineNumbers(),
+            static function ($key) {
+                return !\is_string($key) || false === \strpos($key, 'non_patch_compat');
+            },
+            ARRAY_FILTER_USE_KEY
+        );
+    }
+
+    private function doIntegrationTestPatch(string $diff, string $from, string $to): void
+    {
+        $this->assertNotSame('', $diff);
+        $this->assertValidUnifiedDiffFormat($diff);
+
+        $diff = self::setDiffFileHeader($diff, $this->fileFrom);
+
+        $this->assertNotFalse(\file_put_contents($this->fileFrom, $from));
+        $this->assertNotFalse(\file_put_contents($this->filePatch, $diff));
+
+        $command = \sprintf(
+            'patch -u --verbose --posix  %s < %s', // --posix
+            \escapeshellarg($this->fileFrom),
+            \escapeshellarg($this->filePatch)
+        );
+
+        $p = new Process($command);
+        $p->run();
+
+        $this->assertProcessSuccessful($p);
+
+        $this->assertStringEqualsFile(
+            $this->fileFrom,
+            $to,
+            \sprintf('Patch command "%s".', $command)
+        );
+    }
+
+    private function doIntegrationTestGitApply(string $diff, string $from, string $to): void
+    {
+        $this->assertNotSame('', $diff);
+        $this->assertValidUnifiedDiffFormat($diff);
+
+        $diff = self::setDiffFileHeader($diff, $this->fileFrom);
+
+        $this->assertNotFalse(\file_put_contents($this->fileFrom, $from));
+        $this->assertNotFalse(\file_put_contents($this->filePatch, $diff));
+
+        $command = \sprintf(
+            'git --git-dir %s apply --check -v --unsafe-paths --ignore-whitespace %s',
+            \escapeshellarg($this->dir),
+            \escapeshellarg($this->filePatch)
+        );
+
+        $p = new Process($command);
+        $p->run();
+
+        $this->assertProcessSuccessful($p);
+    }
+
+    private function assertProcessSuccessful(Process $p): void
+    {
+        $this->assertTrue(
+            $p->isSuccessful(),
+            \sprintf(
+                "Command exec. was not successful:\n\"%s\"\nOutput:\n\"%s\"\nStdErr:\n\"%s\"\nExit code %d.\n",
+                $p->getCommandLine(),
+                $p->getOutput(),
+                $p->getErrorOutput(),
+                $p->getExitCode()
+            )
+        );
+    }
+
+    private function cleanUpTempFiles(): void
+    {
+        @\unlink($this->fileFrom . '.orig');
+        @\unlink($this->fileFrom);
+        @\unlink($this->filePatch);
+    }
+
+    private static function setDiffFileHeader(string $diff, string $file): string
+    {
+        $diffLines    = \preg_split('/(.*\R)/', $diff, -1, PREG_SPLIT_DELIM_CAPTURE | PREG_SPLIT_NO_EMPTY);
+        $diffLines[0] = \preg_replace('#^\-\-\- .*#', '--- /' . $file, $diffLines[0], 1);
+        $diffLines[1] = \preg_replace('#^\+\+\+ .*#', '+++ /' . $file, $diffLines[1], 1);
+
+        return \implode('', $diffLines);
+    }
+}

vendor/sebastian/diff/tests/Output/StrictUnifiedDiffOutputBuilderDataProvider.php

@@ -0,0 +1,189 @@
+<?php declare(strict_types=1);
+/*
+ * This file is part of sebastian/diff.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace SebastianBergmann\Diff\Output;
+
+final class StrictUnifiedDiffOutputBuilderDataProvider
+{
+    public static function provideOutputBuildingCases(): array
+    {
+        return [
+            [
+'--- input.txt
++++ output.txt
+@@ -1,3 +1,4 @@
++b
+ ' . '
+ ' . '
+ ' . '
+@@ -16,5 +17,4 @@
+ ' . '
+ ' . '
+ ' . '
+-
+-B
++A
+',
+                "\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\nB\n",
+                "b\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\nA\n",
+                [
+                    'fromFile' => 'input.txt',
+                    'toFile'   => 'output.txt',
+                ],
+            ],
+            [
+'--- ' . __FILE__ . "\t2017-10-02 17:38:11.586413675 +0100
++++ output1.txt\t2017-10-03 12:09:43.086719482 +0100
+@@ -1,1 +1,1 @@
+-B
++X
+",
+                "B\n",
+                "X\n",
+                [
+                    'fromFile'       => __FILE__,
+                    'fromFileDate'   => '2017-10-02 17:38:11.586413675 +0100',
+                    'toFile'         => 'output1.txt',
+                    'toFileDate'     => '2017-10-03 12:09:43.086719482 +0100',
+                    'collapseRanges' => false,
+                ],
+            ],
+            [
+'--- input.txt
++++ output.txt
+@@ -1 +1 @@
+-B
++X
+',
+                "B\n",
+                "X\n",
+                [
+                    'fromFile'       => 'input.txt',
+                    'toFile'         => 'output.txt',
+                    'collapseRanges' => true,
+                ],
+            ],
+        ];
+    }
+
+    public static function provideSample(): array
+    {
+        return [
+            [
+'--- input.txt
++++ output.txt
+@@ -1,6 +1,6 @@
+ 1
+ 2
+ 3
+-4
++X
+ 5
+ 6
+',
+                "1\n2\n3\n4\n5\n6\n",
+                "1\n2\n3\nX\n5\n6\n",
+                [
+                    'fromFile' => 'input.txt',
+                    'toFile'   => 'output.txt',
+                ],
+            ],
+        ];
+    }
+
+    public static function provideBasicDiffGeneration(): array
+    {
+        return [
+            [
+"--- input.txt
++++ output.txt
+@@ -1,2 +1 @@
+-A
+-B
++A\rB
+",
+                "A\nB\n",
+                "A\rB\n",
+            ],
+            [
+"--- input.txt
++++ output.txt
+@@ -1 +1 @@
+-
++\r
+\\ No newline at end of file
+",
+                "\n",
+                "\r",
+            ],
+            [
+"--- input.txt
++++ output.txt
+@@ -1 +1 @@
+-\r
+\\ No newline at end of file
++
+",
+                "\r",
+                "\n",
+            ],
+            [
+'--- input.txt
++++ output.txt
+@@ -1,3 +1,3 @@
+ X
+ A
+-A
++B
+',
+                "X\nA\nA\n",
+                "X\nA\nB\n",
+            ],
+            [
+'--- input.txt
++++ output.txt
+@@ -1,3 +1,3 @@
+ X
+ A
+-A
+\ No newline at end of file
++B
+',
+                "X\nA\nA",
+                "X\nA\nB\n",
+            ],
+            [
+'--- input.txt
++++ output.txt
+@@ -1,3 +1,3 @@
+ A
+ A
+-A
++B
+\ No newline at end of file
+',
+                "A\nA\nA\n",
+                "A\nA\nB",
+            ],
+            [
+'--- input.txt
++++ output.txt
+@@ -1 +1 @@
+-A
+\ No newline at end of file
++B
+\ No newline at end of file
+',
+                'A',
+                'B',
+            ],
+        ];
+    }
+}

vendor/sebastian/diff/tests/Output/StrictUnifiedDiffOutputBuilderTest.php

@@ -0,0 +1,684 @@
+<?php declare(strict_types=1);
+/*
+ * This file is part of sebastian/diff.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace SebastianBergmann\Diff\Output;
+
+use PHPUnit\Framework\TestCase;
+use SebastianBergmann\Diff\ConfigurationException;
+use SebastianBergmann\Diff\Differ;
+use SebastianBergmann\Diff\Utils\UnifiedDiffAssertTrait;
+
+/**
+ * @covers SebastianBergmann\Diff\Output\StrictUnifiedDiffOutputBuilder
+ *
+ * @uses SebastianBergmann\Diff\Differ
+ */
+final class StrictUnifiedDiffOutputBuilderTest extends TestCase
+{
+    use UnifiedDiffAssertTrait;
+
+    /**
+     * @param string $expected
+     * @param string $from
+     * @param string $to
+     * @param array  $options
+     *
+     * @dataProvider provideOutputBuildingCases
+     */
+    public function testOutputBuilding(string $expected, string $from, string $to, array $options): void
+    {
+        $diff = $this->getDiffer($options)->diff($from, $to);
+
+        $this->assertValidDiffFormat($diff);
+        $this->assertSame($expected, $diff);
+    }
+
+    /**
+     * @param string $expected
+     * @param string $from
+     * @param string $to
+     * @param array  $options
+     *
+     * @dataProvider provideSample
+     */
+    public function testSample(string $expected, string $from, string $to, array $options): void
+    {
+        $diff = $this->getDiffer($options)->diff($from, $to);
+
+        $this->assertValidDiffFormat($diff);
+        $this->assertSame($expected, $diff);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function assertValidDiffFormat(string $diff): void
+    {
+        $this->assertValidUnifiedDiffFormat($diff);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function provideOutputBuildingCases(): array
+    {
+        return StrictUnifiedDiffOutputBuilderDataProvider::provideOutputBuildingCases();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function provideSample(): array
+    {
+        return StrictUnifiedDiffOutputBuilderDataProvider::provideSample();
+    }
+
+    /**
+     * @param string $expected
+     * @param string $from
+     * @param string $to
+     *
+     * @dataProvider provideBasicDiffGeneration
+     */
+    public function testBasicDiffGeneration(string $expected, string $from, string $to): void
+    {
+        $diff = $this->getDiffer([
+            'fromFile' => 'input.txt',
+            'toFile'   => 'output.txt',
+        ])->diff($from, $to);
+
+        $this->assertValidDiffFormat($diff);
+        $this->assertSame($expected, $diff);
+    }
+
+    public function provideBasicDiffGeneration(): array
+    {
+        return StrictUnifiedDiffOutputBuilderDataProvider::provideBasicDiffGeneration();
+    }
+
+    /**
+     * @param string $expected
+     * @param string $from
+     * @param string $to
+     * @param array  $config
+     *
+     * @dataProvider provideConfiguredDiffGeneration
+     */
+    public function testConfiguredDiffGeneration(string $expected, string $from, string $to, array $config = []): void
+    {
+        $diff = $this->getDiffer(\array_merge([
+            'fromFile' => 'input.txt',
+            'toFile'   => 'output.txt',
+        ], $config))->diff($from, $to);
+
+        $this->assertValidDiffFormat($diff);
+        $this->assertSame($expected, $diff);
+    }
+
+    public function provideConfiguredDiffGeneration(): array
+    {
+        return [
+            [
+                '--- input.txt
++++ output.txt
+@@ -1 +1 @@
+-a
+\ No newline at end of file
++b
+\ No newline at end of file
+',
+                'a',
+                'b',
+            ],
+            [
+                '',
+                "1\n2",
+                "1\n2",
+            ],
+            [
+                '',
+                "1\n",
+                "1\n",
+            ],
+            [
+'--- input.txt
++++ output.txt
+@@ -4 +4 @@
+-X
++4
+',
+                "1\n2\n3\nX\n5\n6\n7\n8\n9\n0\n",
+                "1\n2\n3\n4\n5\n6\n7\n8\n9\n0\n",
+                [
+                    'contextLines' => 0,
+                ],
+            ],
+            [
+'--- input.txt
++++ output.txt
+@@ -3,3 +3,3 @@
+ 3
+-X
++4
+ 5
+',
+                "1\n2\n3\nX\n5\n6\n7\n8\n9\n0\n",
+                "1\n2\n3\n4\n5\n6\n7\n8\n9\n0\n",
+                [
+                    'contextLines' => 1,
+                ],
+            ],
+            [
+'--- input.txt
++++ output.txt
+@@ -1,10 +1,10 @@
+ 1
+ 2
+ 3
+-X
++4
+ 5
+ 6
+ 7
+ 8
+ 9
+ 0
+',
+                "1\n2\n3\nX\n5\n6\n7\n8\n9\n0\n",
+                "1\n2\n3\n4\n5\n6\n7\n8\n9\n0\n",
+                [
+                    'contextLines' => 999,
+                ],
+            ],
+            [
+'--- input.txt
++++ output.txt
+@@ -1,0 +1,2 @@
++
++A
+',
+                '',
+                "\nA\n",
+            ],
+            [
+'--- input.txt
++++ output.txt
+@@ -1,2 +1,0 @@
+-
+-A
+',
+                "\nA\n",
+                '',
+            ],
+            [
+                '--- input.txt
++++ output.txt
+@@ -1,5 +1,5 @@
+ 1
+-X
++2
+ 3
+-Y
++4
+ 5
+@@ -8,3 +8,3 @@
+ 8
+-X
++9
+ 0
+',
+                "1\nX\n3\nY\n5\n6\n7\n8\nX\n0\n",
+                "1\n2\n3\n4\n5\n6\n7\n8\n9\n0\n",
+                [
+                    'commonLineThreshold' => 2,
+                    'contextLines'        => 1,
+                ],
+            ],
+            [
+                '--- input.txt
++++ output.txt
+@@ -2 +2 @@
+-X
++2
+@@ -4 +4 @@
+-Y
++4
+@@ -9 +9 @@
+-X
++9
+',
+                "1\nX\n3\nY\n5\n6\n7\n8\nX\n0\n",
+                "1\n2\n3\n4\n5\n6\n7\n8\n9\n0\n",
+                [
+                    'commonLineThreshold' => 1,
+                    'contextLines'        => 0,
+                ],
+            ],
+        ];
+    }
+
+    public function testReUseBuilder(): void
+    {
+        $differ = $this->getDiffer([
+            'fromFile' => 'input.txt',
+            'toFile'   => 'output.txt',
+        ]);
+
+        $diff = $differ->diff("A\nB\n", "A\nX\n");
+        $this->assertSame(
+'--- input.txt
++++ output.txt
+@@ -1,2 +1,2 @@
+ A
+-B
++X
+',
+            $diff
+        );
+
+        $diff = $differ->diff("A\n", "A\n");
+        $this->assertSame(
+            '',
+            $diff
+        );
+    }
+
+    public function testEmptyDiff(): void
+    {
+        $builder = new StrictUnifiedDiffOutputBuilder([
+            'fromFile' => 'input.txt',
+            'toFile'   => 'output.txt',
+        ]);
+
+        $this->assertSame(
+            '',
+            $builder->getDiff([])
+        );
+    }
+
+    /**
+     * @param array  $options
+     * @param string $message
+     *
+     * @dataProvider provideInvalidConfiguration
+     */
+    public function testInvalidConfiguration(array $options, string $message): void
+    {
+        $this->expectException(ConfigurationException::class);
+        $this->expectExceptionMessageRegExp(\sprintf('#^%s$#', \preg_quote($message, '#')));
+
+        new StrictUnifiedDiffOutputBuilder($options);
+    }
+
+    public function provideInvalidConfiguration(): array
+    {
+        $time = \time();
+
+        return [
+            [
+                ['collapseRanges' => 1],
+                'Option "collapseRanges" must be a bool, got "integer#1".',
+            ],
+            [
+                ['contextLines' => 'a'],
+                'Option "contextLines" must be an int >= 0, got "string#a".',
+            ],
+            [
+                ['commonLineThreshold' => -2],
+                'Option "commonLineThreshold" must be an int > 0, got "integer#-2".',
+            ],
+            [
+                ['commonLineThreshold' => 0],
+                'Option "commonLineThreshold" must be an int > 0, got "integer#0".',
+            ],
+            [
+                ['fromFile' => new \SplFileInfo(__FILE__)],
+                'Option "fromFile" must be a string, got "SplFileInfo".',
+            ],
+            [
+                ['fromFile' => null],
+                'Option "fromFile" must be a string, got "<null>".',
+            ],
+            [
+                [
+                    'fromFile' => __FILE__,
+                    'toFile'   => 1,
+                ],
+                'Option "toFile" must be a string, got "integer#1".',
+            ],
+            [
+                [
+                    'fromFile'   => __FILE__,
+                    'toFile'     => __FILE__,
+                    'toFileDate' => $time,
+                ],
+                'Option "toFileDate" must be a string or <null>, got "integer#' . $time . '".',
+            ],
+            [
+                [],
+                'Option "fromFile" must be a string, got "<null>".',
+            ],
+        ];
+    }
+
+    /**
+     * @param string $expected
+     * @param string $from
+     * @param string $to
+     * @param int    $threshold
+     *
+     * @dataProvider provideCommonLineThresholdCases
+     */
+    public function testCommonLineThreshold(string $expected, string $from, string $to, int $threshold): void
+    {
+        $diff = $this->getDiffer([
+            'fromFile'            => 'input.txt',
+            'toFile'              => 'output.txt',
+            'commonLineThreshold' => $threshold,
+            'contextLines'        => 0,
+        ])->diff($from, $to);
+
+        $this->assertValidDiffFormat($diff);
+        $this->assertSame($expected, $diff);
+    }
+
+    public function provideCommonLineThresholdCases(): array
+    {
+        return [
+            [
+'--- input.txt
++++ output.txt
+@@ -2,3 +2,3 @@
+-X
++B
+ C12
+-Y
++D
+@@ -7 +7 @@
+-X
++Z
+',
+                "A\nX\nC12\nY\nA\nA\nX\n",
+                "A\nB\nC12\nD\nA\nA\nZ\n",
+                2,
+            ],
+            [
+'--- input.txt
++++ output.txt
+@@ -2 +2 @@
+-X
++B
+@@ -4 +4 @@
+-Y
++D
+',
+                "A\nX\nV\nY\n",
+                "A\nB\nV\nD\n",
+                1,
+            ],
+        ];
+    }
+
+    /**
+     * @param string $expected
+     * @param string $from
+     * @param string $to
+     * @param int    $contextLines
+     * @param int    $commonLineThreshold
+     *
+     * @dataProvider provideContextLineConfigurationCases
+     */
+    public function testContextLineConfiguration(string $expected, string $from, string $to, int $contextLines, int $commonLineThreshold = 6): void
+    {
+        $diff = $this->getDiffer([
+            'fromFile'            => 'input.txt',
+            'toFile'              => 'output.txt',
+            'contextLines'        => $contextLines,
+            'commonLineThreshold' => $commonLineThreshold,
+        ])->diff($from, $to);
+
+        $this->assertValidDiffFormat($diff);
+        $this->assertSame($expected, $diff);
+    }
+
+    public function provideContextLineConfigurationCases(): array
+    {
+        $from = "A\nB\nC\nD\nE\nF\nX\nG\nH\nI\nJ\nK\nL\nM\n";
+        $to   = "A\nB\nC\nD\nE\nF\nY\nG\nH\nI\nJ\nK\nL\nM\n";
+
+        return [
+            'EOF 0' => [
+                "--- input.txt\n+++ output.txt\n@@ -3 +3 @@
+-X
+\\ No newline at end of file
++Y
+\\ No newline at end of file
+",
+                "A\nB\nX",
+                "A\nB\nY",
+                0,
+            ],
+            'EOF 1' => [
+                "--- input.txt\n+++ output.txt\n@@ -2,2 +2,2 @@
+ B
+-X
+\\ No newline at end of file
++Y
+\\ No newline at end of file
+",
+                "A\nB\nX",
+                "A\nB\nY",
+                1,
+],
+            'EOF 2' => [
+                "--- input.txt\n+++ output.txt\n@@ -1,3 +1,3 @@
+ A
+ B
+-X
+\\ No newline at end of file
++Y
+\\ No newline at end of file
+",
+                "A\nB\nX",
+                "A\nB\nY",
+                2,
+            ],
+            'EOF 200' => [
+                "--- input.txt\n+++ output.txt\n@@ -1,3 +1,3 @@
+ A
+ B
+-X
+\\ No newline at end of file
++Y
+\\ No newline at end of file
+",
+                "A\nB\nX",
+                "A\nB\nY",
+                200,
+            ],
+            'n/a 0' => [
+                "--- input.txt\n+++ output.txt\n@@ -7 +7 @@\n-X\n+Y\n",
+                $from,
+                $to,
+                0,
+            ],
+            'G' => [
+                "--- input.txt\n+++ output.txt\n@@ -6,3 +6,3 @@\n F\n-X\n+Y\n G\n",
+                $from,
+                $to,
+                1,
+            ],
+            'H' => [
+                "--- input.txt\n+++ output.txt\n@@ -5,5 +5,5 @@\n E\n F\n-X\n+Y\n G\n H\n",
+                $from,
+                $to,
+                2,
+            ],
+            'I' => [
+                "--- input.txt\n+++ output.txt\n@@ -4,7 +4,7 @@\n D\n E\n F\n-X\n+Y\n G\n H\n I\n",
+                $from,
+                $to,
+                3,
+            ],
+            'J' => [
+                "--- input.txt\n+++ output.txt\n@@ -3,9 +3,9 @@\n C\n D\n E\n F\n-X\n+Y\n G\n H\n I\n J\n",
+                $from,
+                $to,
+                4,
+            ],
+            'K' => [
+                "--- input.txt\n+++ output.txt\n@@ -2,11 +2,11 @@\n B\n C\n D\n E\n F\n-X\n+Y\n G\n H\n I\n J\n K\n",
+                $from,
+                $to,
+                5,
+            ],
+            'L' => [
+                "--- input.txt\n+++ output.txt\n@@ -1,13 +1,13 @@\n A\n B\n C\n D\n E\n F\n-X\n+Y\n G\n H\n I\n J\n K\n L\n",
+                $from,
+                $to,
+                6,
+            ],
+            'M' => [
+                "--- input.txt\n+++ output.txt\n@@ -1,14 +1,14 @@\n A\n B\n C\n D\n E\n F\n-X\n+Y\n G\n H\n I\n J\n K\n L\n M\n",
+                $from,
+                $to,
+                7,
+            ],
+            'M no linebreak EOF .1' => [
+                "--- input.txt\n+++ output.txt\n@@ -1,14 +1,14 @@\n A\n B\n C\n D\n E\n F\n-X\n+Y\n G\n H\n I\n J\n K\n L\n-M\n+M\n\\ No newline at end of file\n",
+                $from,
+                \substr($to, 0, -1),
+                7,
+            ],
+            'M no linebreak EOF .2' => [
+                "--- input.txt\n+++ output.txt\n@@ -1,14 +1,14 @@\n A\n B\n C\n D\n E\n F\n-X\n+Y\n G\n H\n I\n J\n K\n L\n-M\n\\ No newline at end of file\n+M\n",
+                \substr($from, 0, -1),
+                $to,
+                7,
+            ],
+            'M no linebreak EOF .3' => [
+                "--- input.txt\n+++ output.txt\n@@ -1,14 +1,14 @@\n A\n B\n C\n D\n E\n F\n-X\n+Y\n G\n H\n I\n J\n K\n L\n M\n",
+                \substr($from, 0, -1),
+                \substr($to, 0, -1),
+                7,
+            ],
+            'M no linebreak EOF .4' => [
+                "--- input.txt\n+++ output.txt\n@@ -1,14 +1,14 @@\n A\n B\n C\n D\n E\n F\n-X\n+Y\n G\n H\n I\n J\n K\n L\n M\n\\ No newline at end of file\n",
+                \substr($from, 0, -1),
+                \substr($to, 0, -1),
+                10000,
+                10000,
+            ],
+            'M+1' => [
+                "--- input.txt\n+++ output.txt\n@@ -1,14 +1,14 @@\n A\n B\n C\n D\n E\n F\n-X\n+Y\n G\n H\n I\n J\n K\n L\n M\n",
+                $from,
+                $to,
+                8,
+            ],
+            'M+100' => [
+                "--- input.txt\n+++ output.txt\n@@ -1,14 +1,14 @@\n A\n B\n C\n D\n E\n F\n-X\n+Y\n G\n H\n I\n J\n K\n L\n M\n",
+                $from,
+                $to,
+                107,
+            ],
+            '0 II' => [
+                "--- input.txt\n+++ output.txt\n@@ -12 +12 @@\n-X\n+Y\n",
+                "A\nB\nC\nD\nE\nF\nG\nH\nI\nJ\nK\nX\nM\n",
+                "A\nB\nC\nD\nE\nF\nG\nH\nI\nJ\nK\nY\nM\n",
+                0,
+                999,
+            ],
+            '0\' II' => [
+                "--- input.txt\n+++ output.txt\n@@ -12 +12 @@\n-X\n+Y\n",
+                "A\nB\nC\nD\nE\nF\nG\nH\nI\nJ\nK\nX\nM\nA\nA\nA\nA\nA\n",
+                "A\nB\nC\nD\nE\nF\nG\nH\nI\nJ\nK\nY\nM\nA\nA\nA\nA\nA\n",
+                0,
+                999,
+            ],
+            '0\'\' II' => [
+                "--- input.txt\n+++ output.txt\n@@ -12,2 +12,2 @@\n-X\n-M\n\\ No newline at end of file\n+Y\n+M\n",
+                "A\nB\nC\nD\nE\nF\nG\nH\nI\nJ\nK\nX\nM",
+                "A\nB\nC\nD\nE\nF\nG\nH\nI\nJ\nK\nY\nM\n",
+                0,
+            ],
+            '0\'\'\' II' => [
+                "--- input.txt\n+++ output.txt\n@@ -12,2 +12,2 @@\n-X\n-X1\n+Y\n+Y2\n",
+                "A\nB\nC\nD\nE\nF\nG\nH\nI\nJ\nK\nX\nX1\nM\nA\nA\nA\nA\nA\n",
+                "A\nB\nC\nD\nE\nF\nG\nH\nI\nJ\nK\nY\nY2\nM\nA\nA\nA\nA\nA\n",
+                0,
+                999,
+            ],
+            '1 II' => [
+                "--- input.txt\n+++ output.txt\n@@ -11,3 +11,3 @@\n K\n-X\n+Y\n M\n",
+                "A\nB\nC\nD\nE\nF\nG\nH\nI\nJ\nK\nX\nM\n",
+                "A\nB\nC\nD\nE\nF\nG\nH\nI\nJ\nK\nY\nM\n",
+                1,
+            ],
+            '5 II' => [
+                "--- input.txt\n+++ output.txt\n@@ -7,7 +7,7 @@\n G\n H\n I\n J\n K\n-X\n+Y\n M\n",
+                "A\nB\nC\nD\nE\nF\nG\nH\nI\nJ\nK\nX\nM\n",
+                "A\nB\nC\nD\nE\nF\nG\nH\nI\nJ\nK\nY\nM\n",
+                5,
+            ],
+            [
+                '--- input.txt
++++ output.txt
+@@ -1,28 +1,28 @@
+ A
+-X
++B
+ V
+-Y
++D
+ 1
+ A
+ 2
+ A
+ 3
+ A
+ 4
+ A
+ 8
+ A
+ 9
+ A
+ 5
+ A
+ A
+ A
+ A
+ A
+ A
+ A
+ A
+ A
+ A
+ A
+',
+                "A\nX\nV\nY\n1\nA\n2\nA\n3\nA\n4\nA\n8\nA\n9\nA\n5\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\n",
+                "A\nB\nV\nD\n1\nA\n2\nA\n3\nA\n4\nA\n8\nA\n9\nA\n5\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\n",
+                9999,
+                99999,
+            ],
+        ];
+    }
+
+    /**
+     * Returns a new instance of a Differ with a new instance of the class (DiffOutputBuilderInterface) under test.
+     *
+     * @param array $options
+     *
+     * @return Differ
+     */
+    private function getDiffer(array $options = []): Differ
+    {
+        return new Differ(new StrictUnifiedDiffOutputBuilder($options));
+    }
+}

vendor/sebastian/diff/tests/Output/UnifiedDiffOutputBuilderDataProvider.php

@@ -0,0 +1,396 @@
+<?php declare(strict_types=1);
+/*
+ * This file is part of sebastian/diff.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace SebastianBergmann\Diff\Output;
+
+final class UnifiedDiffOutputBuilderDataProvider
+{
+    public static function provideDiffWithLineNumbers(): array
+    {
+        return [
+            'diff line 1 non_patch_compat' => [
+'--- Original
++++ New
+@@ -1 +1 @@
+-AA
++BA
+',
+                'AA',
+                'BA',
+            ],
+            'diff line +1 non_patch_compat' => [
+'--- Original
++++ New
+@@ -1 +1,2 @@
+-AZ
++
++B
+',
+                'AZ',
+                "\nB",
+            ],
+            'diff line -1 non_patch_compat' => [
+'--- Original
++++ New
+@@ -1,2 +1 @@
+-
+-AF
++B
+',
+                "\nAF",
+                'B',
+            ],
+            'II non_patch_compat' => [
+'--- Original
++++ New
+@@ -1,4 +1,2 @@
+-
+-
+ A
+ 1
+',
+                "\n\nA\n1",
+                "A\n1",
+            ],
+            'diff last line II - no trailing linebreak non_patch_compat' => [
+'--- Original
++++ New
+@@ -5,4 +5,4 @@
+ ' . '
+ ' . '
+ ' . '
+-E
++B
+',
+                "A\n\n\n\n\n\n\nE",
+                "A\n\n\n\n\n\n\nB",
+            ],
+            [
+                "--- Original\n+++ New\n@@ -1,2 +1 @@\n \n-\n",
+                "\n\n",
+                "\n",
+            ],
+            'diff line endings non_patch_compat' => [
+                "--- Original\n+++ New\n@@ -1 +1 @@\n #Warning: Strings contain different line endings!\n-<?php\r\n+<?php\n",
+                "<?php\r\n",
+                "<?php\n",
+            ],
+        'same non_patch_compat' => [
+'--- Original
++++ New
+',
+                "AT\n",
+                "AT\n",
+            ],
+            [
+'--- Original
++++ New
+@@ -1,4 +1,4 @@
+-b
++a
+ ' . '
+ ' . '
+ ' . '
+',
+                "b\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n",
+                "a\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n",
+            ],
+            'diff line @1' => [
+'--- Original
++++ New
+@@ -1,2 +1,2 @@
+ ' . '
+-AG
++B
+',
+                "\nAG\n",
+                "\nB\n",
+            ],
+            'same multiple lines' => [
+'--- Original
++++ New
+@@ -1,4 +1,4 @@
+ ' . '
+ ' . '
+-V
++B
+ C213
+',
+                "\n\nV\nC213",
+                "\n\nB\nC213",
+            ],
+            'diff last line I' => [
+'--- Original
++++ New
+@@ -5,4 +5,4 @@
+ ' . '
+ ' . '
+ ' . '
+-E
++B
+',
+                "A\n\n\n\n\n\n\nE\n",
+                "A\n\n\n\n\n\n\nB\n",
+            ],
+            'diff line middle' => [
+'--- Original
++++ New
+@@ -5,7 +5,7 @@
+ ' . '
+ ' . '
+ ' . '
+-X
++Z
+ ' . '
+ ' . '
+ ' . '
+',
+                "A\n\n\n\n\n\n\nX\n\n\n\n\n\n\nAY",
+                "A\n\n\n\n\n\n\nZ\n\n\n\n\n\n\nAY",
+            ],
+            'diff last line III' => [
+'--- Original
++++ New
+@@ -12,4 +12,4 @@
+ ' . '
+ ' . '
+ ' . '
+-A
++B
+',
+                "A\n\n\n\n\n\n\nA\n\n\n\n\n\n\nA\n",
+                "A\n\n\n\n\n\n\nA\n\n\n\n\n\n\nB\n",
+            ],
+            [
+'--- Original
++++ New
+@@ -1,8 +1,8 @@
+ A
+-B
++B1
+ D
+ E
+ EE
+ F
+-G
++G1
+ H
+',
+                "A\nB\nD\nE\nEE\nF\nG\nH",
+                "A\nB1\nD\nE\nEE\nF\nG1\nH",
+            ],
+            [
+'--- Original
++++ New
+@@ -1,4 +1,5 @@
+ Z
++
+ a
+ b
+ c
+@@ -7,5 +8,5 @@
+ f
+ g
+ h
+-i
++x
+ j
+',
+'Z
+a
+b
+c
+d
+e
+f
+g
+h
+i
+j
+',
+'Z
+
+a
+b
+c
+d
+e
+f
+g
+h
+x
+j
+',
+            ],
+            [
+'--- Original
++++ New
+@@ -1,7 +1,5 @@
+-
+-a
++b
+ A
+-X
+-
++Y
+ ' . '
+ A
+',
+                "\na\nA\nX\n\n\nA\n",
+                "b\nA\nY\n\nA\n",
+            ],
+            [
+<<<EOF
+--- Original
++++ New
+@@ -1,7 +1,5 @@
+-
+-
+ a
+-b
++p
+ c
+ d
+ e
+@@ -9,5 +7,5 @@
+ g
+ h
+ i
+-j
++w
+ k
+
+EOF
+                ,
+                "\n\na\nb\nc\nd\ne\nf\ng\nh\ni\nj\nk\n",
+                "a\np\nc\nd\ne\nf\ng\nh\ni\nw\nk\n",
+            ],
+            [
+'--- Original
++++ New
+@@ -8,7 +8,7 @@
+ ' . '
+ ' . '
+ ' . '
+-A
++C
+ ' . '
+ ' . '
+ ' . '
+',
+                "E\n\n\n\n\nB\n\n\n\n\nA\n\n\n\n\n\n\n\n\nD1",
+                "E\n\n\n\n\nB\n\n\n\n\nC\n\n\n\n\n\n\n\n\nD1",
+            ],
+            [
+'--- Original
++++ New
+@@ -5,7 +5,7 @@
+ ' . '
+ ' . '
+ ' . '
+-Z
++U
+ ' . '
+ ' . '
+ ' . '
+@@ -12,7 +12,7 @@
+ ' . '
+ ' . '
+ ' . '
+-X
++V
+ ' . '
+ ' . '
+ ' . '
+@@ -19,7 +19,7 @@
+ ' . '
+ ' . '
+ ' . '
+-Y
++W
+ ' . '
+ ' . '
+ ' . '
+@@ -26,7 +26,7 @@
+ ' . '
+ ' . '
+ ' . '
+-W
++X
+ ' . '
+ ' . '
+ ' . '
+@@ -33,7 +33,7 @@
+ ' . '
+ ' . '
+ ' . '
+-V
++Y
+ ' . '
+ ' . '
+ ' . '
+@@ -40,4 +40,4 @@
+ ' . '
+ ' . '
+ ' . '
+-U
++Z
+',
+                "\n\n\n\n\n\n\nZ\n\n\n\n\n\n\nX\n\n\n\n\n\n\nY\n\n\n\n\n\n\nW\n\n\n\n\n\n\nV\n\n\n\n\n\n\nU\n",
+                "\n\n\n\n\n\n\nU\n\n\n\n\n\n\nV\n\n\n\n\n\n\nW\n\n\n\n\n\n\nX\n\n\n\n\n\n\nY\n\n\n\n\n\n\nZ\n",
+            ],
+            [
+<<<EOF
+--- Original
++++ New
+@@ -1,5 +1,5 @@
+ a
+-b
++p
+ c
+ d
+ e
+@@ -7,5 +7,5 @@
+ g
+ h
+ i
+-j
++w
+ k
+
+EOF
+                ,
+                "a\nb\nc\nd\ne\nf\ng\nh\ni\nj\nk\n",
+                "a\np\nc\nd\ne\nf\ng\nh\ni\nw\nk\n",
+            ],
+            [
+<<<EOF
+--- Original
++++ New
+@@ -1,4 +1,4 @@
+-A
++B
+ 1
+ 2
+ 3
+
+EOF
+                ,
+                "A\n1\n2\n3\n4\n5\n6\n1\n1\n1\n1\n1\n1\n1\n1\n1\n1\n1\n1\n1\n1\n1",
+                "B\n1\n2\n3\n4\n5\n6\n1\n1\n1\n1\n1\n1\n1\n1\n1\n1\n1\n1\n1\n1\n1",
+            ],
+            [
+                "--- Original\n+++ New\n@@ -4,7 +4,7 @@\n D\n E\n F\n-X\n+Y\n G\n H\n I\n",
+                "A\nB\nC\nD\nE\nF\nX\nG\nH\nI\nJ\nK\nL\nM\n",
+                "A\nB\nC\nD\nE\nF\nY\nG\nH\nI\nJ\nK\nL\nM\n",
+            ],
+        ];
+    }
+}

vendor/sebastian/diff/tests/Output/UnifiedDiffOutputBuilderTest.php

@@ -0,0 +1,90 @@
+<?php declare(strict_types=1);
+/*
+ * This file is part of sebastian/diff.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace SebastianBergmann\Diff\Output;
+
+use PHPUnit\Framework\TestCase;
+use SebastianBergmann\Diff\Differ;
+
+/**
+ * @covers SebastianBergmann\Diff\Output\UnifiedDiffOutputBuilder
+ *
+ * @uses SebastianBergmann\Diff\Differ
+ * @uses SebastianBergmann\Diff\Output\AbstractChunkOutputBuilder
+ * @uses SebastianBergmann\Diff\TimeEfficientLongestCommonSubsequenceCalculator
+ */
+final class UnifiedDiffOutputBuilderTest extends TestCase
+{
+    /**
+     * @param string $expected
+     * @param string $from
+     * @param string $to
+     * @param string $header
+     *
+     * @dataProvider headerProvider
+     */
+    public function testCustomHeaderCanBeUsed(string $expected, string $from, string $to, string $header): void
+    {
+        $differ = new Differ(new UnifiedDiffOutputBuilder($header));
+
+        $this->assertSame(
+            $expected,
+            $differ->diff($from, $to)
+        );
+    }
+
+    public function headerProvider(): array
+    {
+        return [
+            [
+                "CUSTOM HEADER\n@@ @@\n-a\n+b\n",
+                'a',
+                'b',
+                'CUSTOM HEADER',
+            ],
+            [
+                "CUSTOM HEADER\n@@ @@\n-a\n+b\n",
+                'a',
+                'b',
+                "CUSTOM HEADER\n",
+            ],
+            [
+                "CUSTOM HEADER\n\n@@ @@\n-a\n+b\n",
+                'a',
+                'b',
+                "CUSTOM HEADER\n\n",
+            ],
+            [
+                "@@ @@\n-a\n+b\n",
+                'a',
+                'b',
+                '',
+            ],
+        ];
+    }
+
+    /**
+     * @param string $expected
+     * @param string $from
+     * @param string $to
+     *
+     * @dataProvider provideDiffWithLineNumbers
+     */
+    public function testDiffWithLineNumbers($expected, $from, $to): void
+    {
+        $differ = new Differ(new UnifiedDiffOutputBuilder("--- Original\n+++ New\n", true));
+        $this->assertSame($expected, $differ->diff($from, $to));
+    }
+
+    public function provideDiffWithLineNumbers(): array
+    {
+        return UnifiedDiffOutputBuilderDataProvider::provideDiffWithLineNumbers();
+    }
+}

vendor/sebastian/diff/tests/ParserTest.php

@@ -0,0 +1,170 @@
+<?php declare(strict_types=1);
+/*
+ * This file is part of sebastian/diff.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace SebastianBergmann\Diff;
+
+use PHPUnit\Framework\TestCase;
+use SebastianBergmann\Diff\Utils\FileUtils;
+
+/**
+ * @covers SebastianBergmann\Diff\Parser
+ *
+ * @uses SebastianBergmann\Diff\Chunk
+ * @uses SebastianBergmann\Diff\Diff
+ * @uses SebastianBergmann\Diff\Line
+ */
+final class ParserTest extends TestCase
+{
+    /**
+     * @var Parser
+     */
+    private $parser;
+
+    protected function setUp(): void
+    {
+        $this->parser = new Parser;
+    }
+
+    public function testParse(): void
+    {
+        $content = FileUtils::getFileContent(__DIR__ . '/fixtures/patch.txt');
+
+        $diffs = $this->parser->parse($content);
+
+        $this->assertContainsOnlyInstancesOf(Diff::class, $diffs);
+        $this->assertCount(1, $diffs);
+
+        $chunks = $diffs[0]->getChunks();
+        $this->assertContainsOnlyInstancesOf(Chunk::class, $chunks);
+
+        $this->assertCount(1, $chunks);
+
+        $this->assertSame(20, $chunks[0]->getStart());
+
+        $this->assertCount(4, $chunks[0]->getLines());
+    }
+
+    public function testParseWithMultipleChunks(): void
+    {
+        $content = FileUtils::getFileContent(__DIR__ . '/fixtures/patch2.txt');
+
+        $diffs = $this->parser->parse($content);
+
+        $this->assertCount(1, $diffs);
+
+        $chunks = $diffs[0]->getChunks();
+        $this->assertCount(3, $chunks);
+
+        $this->assertSame(20, $chunks[0]->getStart());
+        $this->assertSame(320, $chunks[1]->getStart());
+        $this->assertSame(600, $chunks[2]->getStart());
+
+        $this->assertCount(5, $chunks[0]->getLines());
+        $this->assertCount(5, $chunks[1]->getLines());
+        $this->assertCount(4, $chunks[2]->getLines());
+    }
+
+    public function testParseWithRemovedLines(): void
+    {
+        $content = <<<END
+diff --git a/Test.txt b/Test.txt
+index abcdefg..abcdefh 100644
+--- a/Test.txt
++++ b/Test.txt
+@@ -49,9 +49,8 @@
+ A
+-B
+END;
+        $diffs = $this->parser->parse($content);
+        $this->assertContainsOnlyInstancesOf(Diff::class, $diffs);
+        $this->assertCount(1, $diffs);
+
+        $chunks = $diffs[0]->getChunks();
+
+        $this->assertContainsOnlyInstancesOf(Chunk::class, $chunks);
+        $this->assertCount(1, $chunks);
+
+        $chunk = $chunks[0];
+        $this->assertSame(49, $chunk->getStart());
+        $this->assertSame(49, $chunk->getEnd());
+        $this->assertSame(9, $chunk->getStartRange());
+        $this->assertSame(8, $chunk->getEndRange());
+
+        $lines = $chunk->getLines();
+        $this->assertContainsOnlyInstancesOf(Line::class, $lines);
+        $this->assertCount(2, $lines);
+
+        /** @var Line $line */
+        $line = $lines[0];
+        $this->assertSame('A', $line->getContent());
+        $this->assertSame(Line::UNCHANGED, $line->getType());
+
+        $line = $lines[1];
+        $this->assertSame('B', $line->getContent());
+        $this->assertSame(Line::REMOVED, $line->getType());
+    }
+
+    public function testParseDiffForMulitpleFiles(): void
+    {
+        $content = <<<END
+diff --git a/Test.txt b/Test.txt
+index abcdefg..abcdefh 100644
+--- a/Test.txt
++++ b/Test.txt
+@@ -1,3 +1,2 @@
+ A
+-B
+
+diff --git a/Test123.txt b/Test123.txt
+index abcdefg..abcdefh 100644
+--- a/Test2.txt
++++ b/Test2.txt
+@@ -1,2 +1,3 @@
+ A
++B
+END;
+        $diffs = $this->parser->parse($content);
+        $this->assertCount(2, $diffs);
+
+        /** @var Diff $diff */
+        $diff = $diffs[0];
+        $this->assertSame('a/Test.txt', $diff->getFrom());
+        $this->assertSame('b/Test.txt', $diff->getTo());
+        $this->assertCount(1, $diff->getChunks());
+
+        $diff = $diffs[1];
+        $this->assertSame('a/Test2.txt', $diff->getFrom());
+        $this->assertSame('b/Test2.txt', $diff->getTo());
+        $this->assertCount(1, $diff->getChunks());
+    }
+
+    /**
+     * @param string $diff
+     * @param Diff[] $expected
+     *
+     * @dataProvider diffProvider
+     */
+    public function testParser(string $diff, array $expected): void
+    {
+        $result = $this->parser->parse($diff);
+
+        $this->assertEquals($expected, $result);
+    }
+
+    public function diffProvider(): array
+    {
+        return [
+            [
+                "--- old.txt	2014-11-04 08:51:02.661868729 +0300\n+++ new.txt	2014-11-04 08:51:02.665868730 +0300\n@@ -1,3 +1,4 @@\n+2222111\n 1111111\n 1111111\n 1111111\n@@ -5,10 +6,8 @@\n 1111111\n 1111111\n 1111111\n +1121211\n 1111111\n -1111111\n -1111111\n -2222222\n 2222222\n 2222222\n 2222222\n@@ -17,5 +16,6 @@\n 2222222\n 2222222\n 2222222\n +2122212\n 2222222\n 2222222\n",
+                \unserialize(FileUtils::getFileContent(__DIR__ . '/fixtures/serialized_diff.bin')),
+            ],
+        ];
+    }
+}