@RunWith(SpringJUnit4ClassRunner.class)

@SpringApplicationConfiguration(classes = MockServletContext.class)

@WebAppConfiguration

public class ApplicationTests { 

	private MockMvc mvc; 

	@Before

	public void setUp() throws Exception {

		mvc = MockMvcBuilders.standaloneSetup(new UserController()).build();

	} 

	@Test

	public void testUserController() throws Exception {

        // 测试UserController

		RequestBuilder request = null; 

		// 1、get查一下user列表，应该为空

		request = get("/users/");

		mvc.perform(request)

				.andExpect(status().isOk())

				.andExpect(content().string(equalTo("[]"))); 

		// 2、post提交一个user

		request = post("/users/")

				.param("id", "1")

				.param("name", "测试大师")

				.param("age", "20");

		mvc.perform(request)

		        .andExpect(content().string(equalTo("success"))); 

		// 3、get获取user列表，应该有刚才插入的数据

		request = get("/users/");

		mvc.perform(request)

				.andExpect(status().isOk())

				.andExpect(content().string(equalTo("[{\"id\":1,\"name\":\"测试大师\",\"age\":20}]"))); 

		// 4、put修改id为1的user

		request = put("/users/1")

				.param("name", "测试终极大师")

				.param("age", "30");

		mvc.perform(request)

				.andExpect(content().string(equalTo("success"))); 

		// 5、get一个id为1的user

		request = get("/users/1");

		mvc.perform(request)

				.andExpect(content().string(equalTo("{\"id\":1,\"name\":\"测试终极大师\",\"age\":30}"))); 

		// 6、del删除id为1的user

		request = delete("/users/1");

		mvc.perform(request)

				.andExpect(content().string(equalTo("success"))); 

		// 7、get查一下user列表，应该为空

		request = get("/users/");

		mvc.perform(request)

				.andExpect(status().isOk())

				.andExpect(content().string(equalTo("[]"))); 

	} 

}