Spring Boot Testing

This is a comprehensive testing guide for Spring Boot 4 applications that cuts through the noise with a clear decision tree: use @WebMvcTest for controllers, @DataJpaTest for repositories, and plain JUnit for business logic. It emphasizes modern tools like MockMvcTester and RestTestClient over legacy alternatives, pairs everything with AssertJ for readable assertions, and includes practical references for each test slice. The best practices section is pragmatic, recommending 80% coverage with Jacoco and suggesting refactoring when a method needs more than 5-7 test cases. It's opinionated about the test pyramid and context caching, which is exactly what you want when learning a testing stack this deep.

Install to Claude Code

npx -y skills add github/awesome-copilot --skill spring-boot-testing --agent claude-code