Clash Royale CLAN TAG#URR8PPP

Spring-boot testing a rest controller with pageable

I'm trying to test the following controller:

@GetMapping("movies")
public Page<Title> getAllMovies(@PageableDefault(value=2) Pageable pageable)
return this.titleService.getTitleByType("Movie", pageable);



and here's the test class:

@RunWith(SpringRunner.class)
@WebMvcTest(TitleController.class)
@EnableSpringDataWebSupport
public class TitleControllerTest

@Autowired
private MockMvc mockMvc;

@MockBean
private TitleService titleService;

// Test controller method - getAllMovies
@Test
public void getAllMovies() throws Exception
Title title = new Title();
title.setId((short)1);
title.setName("The Godfather");
title.setType("Movie");

List<Title> titles = new ArrayList<>();
titles.add(title);
Page<Title> page = new PageImpl<>(titles);

given(this.titleService.getTitleByType("Movie", PageRequest.of(0,2))).willReturn(page);
mockMvc.perform(MockMvcRequestBuilders.get("/movies"))
.andExpect(status().isOk());




When i run the test it fails and gives me the following message:

java.lang.AssertionError: Status
Expected :200
Actual :500


When i test the url http://localhost:8080/movies it works properly.

http://localhost:8080/movies

1 Answer
1

I think you didn't properly mock/initialize your TitleService that's why you are getting 500 response code.

TitleService

500

You can fix it by mocking the TitleService and passing it to your tested controller:

TitleService

@RunWith(SpringJUnit4ClassRunner.class)
public class TitleControllerTest

private MockMvc mockMvc;

private TitleController underTest;

@Mock
private TitleService titleService;

@Before
public void init()
underTest = new TitleController(titleService);

//DO THE MOCKING ON TITLE SERVICE
// when(titleService.getTitleByType()) etc.

mockMvc = MockMvcBuilders
.standaloneSetup(underTest)
.build();


//your tests





Or:

@RunWith(SpringRunner.class)
@WebMvcTest(TitleController.class)
@EnableSpringDataWebSupport
public class TitleControllerTest

@Autowired
private MockMvc mockMvc;

@Autowired
private TitleController titleController;

@MockBean
private TitleService titleService;

@Before
public void init()
titleController.setTitleService(titleService);

//DO THE MOCKING ON TITLE SERVICE
// when(titleService.getTitleByType()) etc.


//your tests




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