During March 2026, Wajdi Jabbour focused on improving test infrastructure within the jeejeelee/vllm repository by refactoring test utilities for better organization and reusability. He relocated the shuffle_weight utility into a dedicated utils module, streamlining its use across multiple test cases and reducing code duplication. This Python-based effort emphasized modular software engineering practices and laid the foundation for more maintainable and scalable test suites. By enhancing the structure of test utilities, Wajdi enabled faster test authoring and easier future expansion. The work demonstrated a methodical approach to codebase hygiene, though it was limited in scope to a single feature refactor.