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copied!<p>Here is one suggestion that should give you some ideas. I assume that you are familiar with the <code>SpringJUnit4ClassRunner</code> and the <code>@ContextConfiguration</code>. Start by creating an test application context that contains <code>PcUserController</code> and a mocked <code>PcUserService</code>. In the example <code>PcUserControllerTest</code> class below, Jackson is used to convert JSON messages and Mockito is used for mocking. </p> <pre><code>@RunWith(SpringJUnit4ClassRunner.class) @ContextConfiguration(/* Insert test application context here */) public class PcUserControllerTest { MockHttpServletRequest requestMock; MockHttpServletResponse responseMock; AnnotationMethodHandlerAdapter handlerAdapter; ObjectMapper mapper; PcUser pcUser; @Autowired PcUserController pcUserController; @Autowired PcUserService pcUserServiceMock; @Before public void setUp() { requestMock = new MockHttpServletRequest(); requestMock.setContentType(MediaType.APPLICATION_JSON_VALUE); requestMock.addHeader(HttpHeaders.ACCEPT, MediaType.APPLICATION_JSON_VALUE); responseMock = new MockHttpServletResponse(); handlerAdapter = new AnnotationMethodHandlerAdapter(); HttpMessageConverter[] messageConverters = {new MappingJacksonHttpMessageConverter()}; handlerAdapter.setMessageConverters(messageConverters); mapper = new ObjectMapper(); pcUser = new PcUser(...); reset(pcUserServiceMock); } } </code></pre> <p>Now, we have all the code needed to create the tests:</p> <pre><code>@Test public void shouldGetUser() throws Exception { requestMock.setMethod("GET"); requestMock.setRequestURI("/pcusers/1"); when(pcUserServiceMock.read(1)).thenReturn(pcUser); handlerAdapter.handle(requestMock, responseMock, pcUserController); assertThat(responseMock.getStatus(), is(HttpStatus.SC_OK)); PcUser actualPcUser = mapper.readValue(responseMock.getContentAsString(), PcUser.class); assertThat(actualPcUser, is(pcUser)); } @Test public void shouldCreateUser() throws Exception { requestMock.setMethod("POST"); requestMock.setRequestURI("/pcusers/create/1"); String jsonPcUser = mapper.writeValueAsString(pcUser); requestMock.setContent(jsonPcUser.getBytes()); handlerAdapter.handle(requestMock, responseMock, pcUserController); verify(pcUserServiceMock).create(pcUser); } </code></pre>

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