Worked on stabilizing the test suite for the rhinstaller/anaconda repository, focusing on the Flatpak manager flow. Addressed a bug by fixing unreachable code in the Flatpak manager tests, ensuring that transaction disposal is properly asserted after installation attempts. This targeted change improved test determinism and reduced flaky failures in continuous integration, making the validation of Flatpak-related flows more robust. Employed Python, test-driven development, and unit testing to enhance code hygiene and reliability. The work enabled safer modifications to installer logic and supported faster iteration by clarifying expectations for transaction disposal, ultimately contributing to more reliable end-to-end testing.