During March 2026, Mamadou Diatta enhanced the OHIF/Viewers repository by developing end-to-end tests for contour segmentation navigation. Focusing on improving QA coverage and release confidence, Mamadou used React and TypeScript to build automated UI tests that validate in-viewport contour interactions. The work integrated these tests into the existing CI workflow, enabling faster feedback on UI changes and supporting maintainable test automation. Although no bugs were fixed during this period, the contribution deepened the project’s testing framework, providing structured test commits and documentation that improved reliability and maintainability for contour-related workflows within the OHIF/Viewers codebase.