Software Architecture with Spring 5.0

Testing

Testing is crucial to our applications. When we use Spring MVC, we can count on the spring-test module to add support for unit and integration tests that are context-aware, which means that we can rely on annotations to wire dependencies. We can also use the @Autowired annotation to test a specific component.

The following is an example of how simple it is to write a test that is context-aware:

@RunWith(SpringRunner.class)@SpringBootTestpublic class ContextAwareTest {    @Autowired    ClassUnderTest classUnderTest;    @Test    public void validateAutowireWorks() throws Exception {        Assert.assertNotNull(classUnderTest);    }}

Let's review the code in bold, in order to understand how it works:

• The first two annotations do all of the work for us; ...