During June 2025, Nigri enhanced the reliability of eBPF execution on Windows by expanding unit test coverage in the microsoft/ebpf-for-windows repository. Focusing on Libbpf’s inner map key lookup functionality, Nigri developed new C++ unit tests to verify that lookups using non-zero and nonexistent keys correctly fail and set errno as expected. This work addressed potential regression risks by ensuring that error handling in inner map operations is robust and detectable during continuous integration. By leveraging expertise in unit testing and eBPF, Nigri improved the maintainability of the test suite and enabled earlier detection of issues related to inner map behavior.