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

    @Test
    public void welcomeWithParameter() throws Exception {
      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 pass in the name Buddy.
• .andExpect(content().string(containsString("Hello World, Buddy”))): We expect the response to contain the message with the name.