springboot-tdd

To practice Test-Driven Development in Spring Boot, you write failing tests first using JUnit 5 and Mockito, implement minimal code to pass, and refactor while verifying coverage with JaCoCo. This workflow covers unit, web, integration, and persistence testing strategies.

You test Spring Boot REST API endpoints using MockMvc by writing failing web layer tests first, implementing the controller logic to pass the tests, and refactoring the code. This TDD workflow ensures the API behaves correctly before integration testing.

Testcontainers is used for Spring Boot integration testing to manage external dependencies like databases in Docker containers. It supports the TDD workflow by providing isolated, reproducible persistence testing environments for verifying data layer interactions.

To achieve over 80% code coverage in a Spring Boot project, you follow a TDD workflow using JUnit 5 and Mockito for tests, and verify your coverage metrics using JaCoCo across unit, web, integration, and persistence layers.

The best way to write unit tests for Spring Boot services with Mockito is to follow the Test-Driven Development workflow: write failing unit tests first, implement the minimal service code to pass, refactor, and verify the results with JUnit 5.

Yes, you can use JUnit 5 for both web and persistence testing in Spring Boot. The TDD workflow integrates JUnit 5 with MockMvc for web layer tests and Testcontainers for persistence tests to ensure comprehensive coverage across all layers.