Architecting Modern Java EE Applications

Technology

These examples again demonstrate plain JUnit and Mockito test approaches. With some code quality practices, it's certainly possible to write maintainable, dense test cases with limited configuration overhead.

Component tests implemented as shown previously are a practical approach to wire up components that use straightforward dependency injection. If the production code makes use of CDI producers and qualifiers, the injection logic of the test components will change accordingly.

Component tests aim to verify the business use case behavior of coherent units. They usually don't verify the technical wiring. It's advisable to use integration tests in order to verify whether CDI injection was used correctly, for example, in terms of ...