--- ../tests/Unit/AbstractVersionConstraintTest.php	2026-06-27 12:51:47.129281041 +0300
+++ ../tests/Unit/AbstractVersionConstraintTest.php	2026-06-27 12:56:03.012692812 +0300
@@ -16,8 +16,11 @@
  */
 class AbstractVersionConstraintTest extends TestCase {
     public function testAsString(): void {
-        /** @var AbstractVersionConstraint|\PHPUnit_Framework_MockObject_MockObject $constraint */
-        $constraint = $this->getMockForAbstractClass(AbstractVersionConstraint::class, ['foo']);
+    $constraint = new class('foo') extends AbstractVersionConstraint {
+        public function complies(Version $version): bool {
+            return false;
+        }
+    };
 
         $this->assertSame('foo', $constraint->asString());
     }