Alilo Ghazali enhanced the testing framework for write(2) and pwrite(2) system calls in the google/gvisor repository, focusing on increasing the reliability of IO path validation. By introducing comprehensive edge case scenarios and robust error handling, Alilo strengthened the test suite’s ability to detect regressions early and ensure consistent behavior across updates. The work involved designing targeted test harnesses and modeling complex error paths, leveraging skills in C++, system programming, and Go-based testing. This contribution improved overall software quality by expanding test coverage for critical IO operations, providing greater confidence in the stability and maintainability of the gVisor IO subsystem.