diff --git a/app/tests/unit/src/ObjectHasMethodTrait.php b/app/tests/unit/src/ObjectHasMethodTrait.php
new file mode 100644
index 0000000..d7f38e5
--- /dev/null
+++ b/app/tests/unit/src/ObjectHasMethodTrait.php
@@ -0,0 +1,10 @@
+<?php
+namespace ProVM\Unit;
+
+trait ObjectHasMethodTrait
+{
+    public function assertObjectHasMethod(string $method, object $object): void
+    {
+        $this->assertTrue(method_exists($object, $method), sprintf('The object %s does not have the method %s', get_class($object), $method));
+    }
+}
\ No newline at end of file