springboot-tdd

Test-driven development in Spring Boot services involves writing failing tests first, implementing minimal code, and refactoring for green tests. You configure JUnit 5, Mockito, MockMvc, Testcontainers, and JaCoCo to enforce coverage and code quality across unit and integration testing scenarios.

Unit and integration testing in Spring Boot requires a structured workflow using JUnit 5 for test execution, Mockito for mocking dependencies, MockMvc for web layer testing, and Testcontainers for integration tests with real dependencies to reduce regressions and improve maintainability.

Yes, Testcontainers and MockMvc can be configured together in Spring Boot testing. Testcontainers handles integration testing with real database environments, while MockMvc tests web layer requests and responses, enabling comprehensive coverage across different testing layers.

Spring Boot TDD applies to feature development, bug fixes, and refactoring scenarios. By driving development with tests, teams can refactor existing code with confidence, reducing regressions and improving service maintainability while meeting JaCoCo coverage goals.

Testcontainers provides real dependency environments for Spring Boot integration testing, ensuring tests reflect production behavior accurately. Unlike mocks, it validates actual database interactions and service integrations, reducing false positives and improving test reliability for complex services.

JaCoCo is required to enforce code coverage and quality goals in Spring Boot TDD. It measures test coverage metrics across unit and integration tests, ensuring that development driven by tests maintains comprehensive code validation and reduces regression risks.