spring-service-test

Writes the service layer tests of a use case (UC-XXX) in a Spring Boot application: every business rule with its allowed and its rejected case, every alternative flow the service decides, and the main success scenario, called on the @Service directly. Uses @SpringBootTest with the real persistence layer and a Testcontainers database, or plain unit tests with an in-memory fake of the outbound port in the business module of a hexagonal project. Classes are named UC001<Name>ServiceTest and every method carries @UseCase. Use when the user asks to "test the service layer", "test the business rules", "write service tests", "unit test the business logic", or mentions @SpringBootTest service tests, Testcontainers, domain exceptions, or business rule tests for a Spring Boot use case. Run by /use-case-test as the integration layer of a Hilla stack or a stack without an entry layer, or when the service layer is named; below a Vaadin Flow UI or a REST entry layer their tests cover the service. Can also be run directly.