Java Testing Skill

Activation Contract

Use this skill for Java tests: unit tests, JUnit/Mockito/AssertJ examples, characterization tests, Golden Master tests, seams, or dependency-breaking.

Do not use for non-Java projects, generic strategy, frontend/E2E, performance, security, or refactoring without a testing objective.

Responsibility

Own Java test workflow: detect the local stack, choose the smallest safe technique, create or propose tests, and explain seam/dependency tradeoffs. The caller owns product behavior, dependency approval, and running project commands when validation exists.

Required Context

Before writing tests, inspect or ask for: