Worked on enhancing the test infrastructure for the facebook/igl repository by developing unit tests for the TinyRenderable class targeting the Metal backend. Focused on improving CI reliability, the approach included implementing conditional test execution to gracefully skip tests when the Metal backend is unavailable, thereby reducing flaky failures and supporting safer refactoring. Utilized C++ for both graphics programming and unit testing, demonstrating backend awareness and adherence to standard code review workflows. The work did not involve bug fixes but contributed to a more robust and maintainable test suite, streamlining developer workflows and enabling more confident changes to Metal-backed rendering components.