testevo-bench-b7c04384·1 events·first seen Aliases: TestEvo-Bench
Researchers introduce TestEvo-Bench, a benchmark of 1,255 tasks (746 test generation, 509 test update) mined from 152 open-source Java projects, designed to evaluate whether AI agents can correctly propagate code changes into test suites. Each task is anchored to a real commit and packaged with execution environments, enabling pass rate, coverage, and mutation score metrics. The benchmark is 'live' — new tasks are periodically mined and timestamped to allow evaluation restricted to post-training-cutoff data, reducing leakage risk. Experiments with Claude Code, Gemini CLI, and SWE-Agent paired with Claude Opus 4.7 and Gemini 3.1 Pro show up to 77.5% success on test generation, but performance drops notably on the most recent tasks and under cost constraints.