@WebMVCTest测试类中的NoSuchBeanDefinitionException

Question

我想在BookRestController中测试我的restendpoint。我用@webmvctest编写了一个测试。

@RunWith(SpringRunner.class)
@WebMvcTest(BookRestController.class)
public class BookRestControllerTest {

    @Autowired
    private MockMvc mockMvc;

    @MockBean
    private CategoryService categoryService;

    private ObjectMapper objectMapper = new ObjectMapper();

    @Test
    public void should_create_new_category_when_try_to_update() throws Exception {

        given(categoryService.getCategoryById(20L)).willReturn(null);
        Category category = new Category("Fantastyka");

        ResultActions resultActions = mockMvc.perform(put("/api/category/10")
        .contentType(MediaType.APPLICATION_JSON)
        .content(objectMapper.writeValueAsString(category)));

        resultActions.andExpect(status().isNoContent());

    }
}

这是我在bookrestcontroller中的方法

@RestController
public class BookRestController {

    @Autowired
    private CategoryService categoryService;

  @RequestMapping(value = "/api/category/{id}", method = RequestMethod.PUT)
    public ResponseEntity<Category> updateCategory(@PathVariable Long id, @RequestBody Category category){

        return ResponseEntity
                .status(HttpStatus.NO_CONTENT)
                .body(categoryService.updateCategory(id, category));
    }
}

现在，当我运行测试时，我得到一个错误

Spring Boot:v2.1.0.发行版

编辑：它起作用了。我怀念我的DemoApplication中的@autowireBookRepository...我删除了这段代码，现在它起作用了

@Autowired
    private ApplicationContext applicationContext;

    private BookRepository bookRepository;

    private CategoryRepository categoryRepository;

    @Autowired
    public DemoApplication(BookRepository bookRepository, CategoryRepository categoryRepository) {
        this.bookRepository = bookRepository;
        this.categoryRepository = categoryRepository;
    }

Answer 1

您的主应用程序类将加载任何定义的bean或通过注释启用的功能。

例如@enableschedling、@componentscan、@import等。

都会在切片测试中加载。