Worked on the denoland/chromium_build repository to enhance test failure diagnostics by updating assertion logic in Python. The feature focused on improving error reporting for tests ending with '#null' by logging both the test name and the expected versus actual result type when failures occurred. This approach provided clearer context for debugging and enabled faster triage of flaky tests, directly supporting more efficient test automation workflows. Emphasizing debugging and test automation skills, the work reduced the mean time required to diagnose issues. Over the course of the month, one primary feature was delivered, with no bugs fixed during this period.