backend-tester

Write integration tests for Spring Boot using Testcontainers by spinning up Docker containers for external dependencies, verifying interactions, and ensuring fast feedback with clear test structure and measurable coverage.

Test reactive streams in Java by using StepVerifier to verify asynchronous sequences, ensuring robust reactive tests across the test lifecycle for your reactive systems.

Apply TDD workflows to Java unit tests with Mockito by following the Red-Green-Refactor cycle, generating structured unit tests with JUnit 6 that provide fast feedback and reduce regressions.

Yes, you can use JUnit 6 for both API and unit test design in Spring Boot services, structuring tests with Mockito to ensure high coverage and clear test templates.

Use Mockito for isolating units in unit tests, while Testcontainers is needed for integration tests to manage real external dependencies like databases, fulfilling different requirements across the test lifecycle.

Reactive test structure lacks measurable coverage if not using StepVerifier correctly; design robust reactive tests by applying structured templates and best practices to verify reactive streams thoroughly.