Worked on stabilizing the Product Configurator test suite in the SAP/spartacus repository by delivering a targeted fix for test isolation issues. Refactored test data initialization and mock configurations to ensure that unit and integration tests for add-to-cart button and group menu components run independently and reliably. This approach reduced test flakiness, improved continuous integration feedback, and enhanced overall release readiness. Collaborated closely with QA and development teams to refine test strategy and coverage. Utilized Angular, JavaScript, and TypeScript to implement reusable test data patterns and helpers, supporting long-term quality and productivity in front-end development and automated testing workflows.