
2/11/2026 · Mark Harman
What this post added
This post introduces Just-in-Time Tests (JiTTests) as a novel approach to software testing, leveraging LLMs to automatically generate tests on-the-fly for specific code changes. It highlights how JiTTests address the limitations of traditional testing in the context of agentic development by eliminating maintenance overhead, reducing false positives, and focusing on catching critical bugs just before production.