BabisSt/bookstore-spring

AI Summary: Implement a comprehensive suite of unit and integration tests for the Spring Boot bookstore application, including setting up a testing framework (JUnit), writing tests for services, controllers, and utility classes, adding test data (e.g., using H2), incorporating test coverage reporting (e.g., JaCoCo), and integrating the tests into a CI/CD pipeline (e.g., GitHub Actions). The tests should cover major functionality and pass when running the test command.