Developing Java Applications with Spring and Spring Boot

How it works...

The key difference from our previous test is the absence of the @SpringBootTest annotation, which has been replaced with the @DataJpaTest annotation. The apparent simplicity of the test class itself is possible thanks to the @DataJpaTest annotation doing the bulk of the declarations and workload to configure the test environment. If we look inside the annotation definition, we will see a myriad of different internal annotations configuring all the necessary components. The important ones are the @AutoConfigure* annotations, such as @AutoConfigureDataJpa or @AutoConfigureTestDatabase. Those annotations essentially instruct Spring Boot to import the necessary component configurations when bootstrapping the test. For example, ...