JUnit 6 Expert

Use this skill for unit tests, integration tests, regression-first fixes, deterministic fixtures, and test placement in Java projects that use JUnit 6.

Authoritative Sources

Read, when present:

• root AGENTS.md
• root QUALITY.md
• build files that define the Java and JUnit versions
• existing tests near the affected code
• project-specific testing or quality skills under .agents/

Rules