Component tests verify coherent business logic in isolated and fast tests. Sophisticated Java EE integration behavior, such as injection, custom qualifiers, CDI events, or scopes are not covered by these tests.

Integration tests aim to verify the technical collaboration of components within the enterprise system. This covers concerns such as configuration of Java EE core components, communication with external systems, or persistence. Are the Java EE components annotated correctly? Does the JSON-B mapping produce the desired JSON format? Is the JPA ORM mapping defined properly?

The idea behind code level integration tests is to provide faster feedback by verifying correct integration without the need to build and deploy the application to a test environment.