我想知道为什么使用这个WebMVCTest的Pageable对象的getBoardList测试不起作用

Question

有一个源代码

@WebMvcTest(BoardController.class)
public class BoardControllerTest {
    
    private MockMvc mvc;

    @Autowired
    private ObjectMapper objectMapper;

    @Autowired
    BoardController boardController;

    @MockBean
    BoardServiceImpl boardService;

    @BeforeEach
    public void setUp() {
        mvc = MockMvcBuilders
                .standaloneSetup(boardController)
                .build();
    }

    @Test
    public void getBoardList() throws Exception {
        PageRequest pageable = PageRequest.of(0,10, Sort.Direction.DESC, "id");

        List<BoardDto> results = new ArrayList<>();
        results.add(new BoardDto(1, "Shown Title1", null, "Mingyeom", 2, LocalDateTime.now(), null));
        results.add(new BoardDto(2, "Shown Title2", null, "Mingyeom", 2, LocalDateTime.now(), null));
        results.add(new BoardDto(3, "Shown Title3", null, "Mingyeom", 2, LocalDateTime.now(), null));

        Page<BoardDto> expectedBoardDto = new PageImpl<>(results,pageable, results.size());

        given(boardService.getBoardList(anyInt(), any())).willReturn(expectedBoardDto);

        // when
        String responseBody = mvc.perform(get("/board/all")
                        .contentType(MediaType.APPLICATION_JSON)
                        .param("menuId", "2")
                        .param("page", "2")
                        .param("size", "1")
                        .param("sort", "ASC")
                        .param("properties", "id"))
                .andExpect(status().isOk())
                .andDo(print())
                .andReturn()
                .getResponse().getContentAsString();

        // then
        assertThat(responseBody).isEqualTo(objectMapper.writeValueAsString(expectedBoardDto));
    }
}

@RestController
@RequestMapping("/board")
@RequiredArgsConstructor
public class BoardController {
  
    private final BoardService boardService;

    @GetMapping("/all")
    public Page<BoardDto> getBoardList(
            Pageable pageable,
            @RequestParam Integer menuId
    ) {
        return boardService.getBoardList(menuId, pageable);
    }
}

基于下面的BoardController，我尝试测试接收pageable对象和接收menuId作为参数的方法，以检索文章的整个内容。

在BoardControlllerTest中创建PageRequest对象后，我创建了BoardDto列表，并使用PageImpl方法创建了Page对象。

（很抱歉没有帖子。）

如果您以相同的方式向web上的地址栏发送请求，它将正常发送，但如果您只是测试它，则会出现错误。下面是错误消息的内容。

请帮忙，，：(

Answer 1

我解决了！

 @BeforeEach
    public void setUp() {
        mvc = MockMvcBuilders
                .standaloneSetup(boardController)
                .setCustomArgumentResolvers(new PageableHandlerMethodArgumentResolver())
                .setViewResolvers(new ViewResolver() {
                    @Override
                    public View resolveViewName(String viewName, Locale locale) throws Exception {
                        return new MappingJackson2JsonView();
                    }
                })
                .build();
    }

我在BoardControllerTest上写了这段代码，它编译成功了。