Worked on enhancing the SDXL refiner testing suite within the tenstorrent/tt-metal repository, focusing on improving test coverage and reliability for production changes. Developed a parameterized test function for the conv2d SDXL refiner and expanded group normalization test coverage, ensuring more comprehensive validation of core operations. Addressed test stability by reverting grid dimension changes, aligning input mask and weight or bias calculations to reduce flaky results and accelerate continuous integration validation. Leveraged Python for both data processing and software testing, applying test-driven development and unit testing methodologies to consolidate and strengthen the overall testing framework for the SDXL refiner component.