Generally, in a Jakarta EE application, there are some tools can be used for testing Jakarta EE components.
- Use JUnit or TestNG to test simple POJOs.
- Use Mockito like mock framework to isolate the dependencies of a component in tests.
- Test Jakarta EE components in a real world environment with JBoss Arquillian.
Besides, there are some existing extensions to help for improving testing productivity.
- AssertJ includes a collection of fluent assertions.
- RestAssured provides BDD like behaviors for testing RESTful APIs.
- JsonPath provides XPath like query for JSON.
- awaitility provides assertions for async invocation.
In this post, we will focus on testing Jakarta EE components on the following Jakarta EE 8 compatible application servers with JBoss Arquillian.