Snippet

Verifying REST Endpoints with MockMvc Assertions

MockMvc enables fast and isolated testing of Spring MVC controller endpoints without spinning up a full HTTP web server, allowing developers to assert HTTP status codes and responses directly.

snippet.java

java

@WebMvcTest(UserController.class)
class UserControllerTest {
 
    @Autowired
    private MockMvc mockMvc;
 
    @Test
    void shouldReturnOkStatus() throws Exception {
        mockMvc.perform(get("/api/users/1"))
                .andExpect(status().isOk());
    }
}

spring

Breakdown

@WebMvcTest(UserController.class)

Bootstraps a slice of the Spring ApplicationContext focusing solely on Spring MVC components for UserController.

private MockMvc mockMvc;

Injects the main entry point for server-side Spring MVC testing support.

mockMvc.perform(get("/api/users/1"))

Constructs and executes a simulated HTTP GET request to the specified endpoint path.

.andExpect(status().isOk());

Asserts that the simulated response status matches HTTP 200 OK.

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Verifying REST Endpoints with MockMvc Assertions

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