Mastering Spring 5.0

Unit testing

Let's quickly write a unit test for the preceding method. We will want to pass a name as a part of the URI and check whether the response contains the name. The following code shows how we can do that:

    @Test    fun `GET welcome-with-parameter returns "Hello World, Buddy"`() {      mvc.perform(      MockMvcRequestBuilders.get(      "/welcome-with-parameter/name/Buddy")     .accept(MediaType.APPLICATION_JSON))     .andExpect(status().isOk())     .andExpect(content().string(     containsString("Hello World, Buddy")));    }

A few important things to note are as follows:

• MockMvcRequestBuilders.get("/welcome-with-parameter/name/Buddy"): This matches against the variable template in the URI. We will pass in the name, .
• .andExpect(content().string(containsString("Hello ...