Mastering Spring 5.0

Setting up the Controller to test

The controller we want to test is BasicController. The convention to create a unit test is a class name with a suffix Test. We will create a test class named BasicControllerTest.

The basic setup is shown as follows:

    public class BasicControllerTest {       private MockMvc mockMvc;       @Before       public void setup() {         this.mockMvc = MockMvcBuilders.standaloneSetup(         new BasicController())         .build();       }      }

A few important things to note are as follows:

• mockMvc: This variable can be used across different tests. So, we define an instance variable of the MockMvc class.
• @Before setup: This method is run before every test in order to initialize MockMvc.
• MockMvcBuilders.standaloneSetup(new BasicController()).build(): This ...