Worked on the systemd/systemd repository to enhance test robustness and streamline network management code. Focused on improving the reliability of automated testing by replacing direct assert_se calls with ASSERT_OK and ASSERT_STREQ macros, which provide richer context for test failures and facilitate easier debugging. Additionally, removed an unused D-Bus connection from the networkctl list_links function, reducing unnecessary resource consumption and simplifying the code path. These contributions, implemented in C with a focus on system programming and testing, improved test report clarity, increased CI reliability, and lowered maintenance overhead, reflecting a methodical approach to code quality and resource efficiency.