Testing Jakarta EE applications

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.

• Glassfish Server
• Payara Server
• WildFly Server
• Open Liberty Server