Test Doubles

@Before
public void init() throws Exception {
    userService = Mockito.spy(userService);
    ObjectMapper mapper = new ObjectMapper();
    spyData = mapper.readValue(new File(TestConstants.DATA_FILE_ROOT + "user_spy.json"), User.class);
    Mockito.doReturn(spyData).when(userService).getUserInfo(TestConstants.userId);
}

@Test
public void verifySpyUserDetails() throws Exception {
    User user = userService.getUserInfo(TestConstants.userId);
    verify(userService).getUserInfo(TestConstants.userId);
    verify(userService, times(1)).getUserInfo(TestConstants.userId);

    Assert.assertEquals(spyData.getManager(), user.getManager());
    Assert.assertEquals(spyData.getVp(), user.getVp());
    Assert.assertEquals(spyData.getOrganization(), user.getOrganization());
    Assert.assertEquals(spyData.getDirector(), user.getDirector());
}

@After
public void cleanUp() {
    reset(userService);
}