Worked on enhancing static analysis capabilities in the PHP-CS-Fixer repository by extending the PhpUnitTestCaseStaticMethodCallsFixer to support the createStub method used in PHPUnit mocks. This addition improved the tool’s ability to analyze and refactor test code, reducing the need for manual intervention when handling mock object creation. The approach focused on code refactoring and static analysis within PHP, ensuring that projects relying on PHP-CS-Fixer benefit from more consistent and reliable test code transformations. By targeting the analysis of PHPUnit test cases, the work enabled safer refactoring practices and contributed to higher reliability in automated code quality workflows.