test-rest-adapter

This Skill generates unit tests for Spring Boot REST controllers in Kotlin by using @WebMvcTest, MockMvc, and @MockkBean to isolate the web layer and stub use-case dependencies for request mocking and response assertions.

Testing Spring Boot controller endpoints without the full application context is done using @WebMvcTest, which loads only the web layer and uses MockMvc to verify HTTP request and response behavior.

Yes, you can update existing MockMvc tests when a REST controller changes by pointing the generation process to the modified controller file, which adjusts stubbing and verification patterns to match the new logic.

Yes, this testing approach works with MockkBean for mocking Kotlin dependencies in Spring Boot, replacing use-case dependencies in the controller's web layer to isolate and verify controller logic.

To fix a Spring Boot controller test when endpoint logic is updated, you regenerate the test file to match the current controller implementation, resetting the MockMvc request mocking and @MockkBean stubs.

You should not use @WebMvcTest for testing REST controllers when you need to verify integration with real database layers or full application context behavior, as it scopes only to the web layer and mocks dependencies.