java - Spring Boot单元测试断言错误

Question

在基于 Spring Boot 的 Rest 项目上工作我有一个像这样的 Controller 其中调用service，service层调用dao层。现在我正在为 Controller 编写单元测试代码。当我运行这个错误时显示

java.lang.AssertionError: expected:<201> but was:<415>

我不知道我哪里做错了:

    public class CustomerController {
        private static final Logger LOGGER = LogManager.getLogger(CustomerController.class);
        @Autowired
        private CustomerServices customerServices;
        @Autowired
        private Messages MESSAGES;
        @Autowired
        private LMSAuthenticationService authServices;
        @RequestMapping(value = "/CreateCustomer", method = RequestMethod.POST)
        public Status createCustomer(@RequestBody @Valid Customer customer, BindingResult bindingResult) {
            LOGGER.info("createCustomer call is initiated");
            if (bindingResult.hasErrors()) {
                throw new BusinessException(bindingResult);
            }
            Status status = new Status();
            try {
                int rows = customerServices.create(customer);
                if (rows > 0) {
                    status.setCode(ErrorCodeConstant.ERROR_CODE_SUCCESS);
                    status.setMessage(MESSAGES.CUSTOMER_CREATED_SUCCESSFULLY);
                } else {
                    status.setCode(ErrorCodeConstant.ERROR_CODE_FAILED);
                    status.setMessage(MESSAGES.CUSTOMER_CREATION_FAILED);
                }
            } catch (Exception e) {
                LOGGER.info("Cannot Create the Customer:", e);
                status.setCode(ErrorCodeConstant.ERROR_CODE_FAILED);
                status.setMessage(MESSAGES.CUSTOMER_CREATION_FAILED);
            }
            return status;
        }
              }

CustomerController 的测试。

    public class CustomerControllerTest extends ApplicationTest {

        private static final Logger LOGGER = LogManager.getLogger(CustomerControllerTest.class);


        @Autowired
        private WebApplicationContext webApplicationContext;

        private MockMvc mockMvc;

        @MockBean
        private CustomerController customerController;

        @Before
        public void setup() {
            this.mockMvc = MockMvcBuilders.webAppContextSetup(webApplicationContext).build();
        }

        Status status = new Status(200,"customer created successfully","success");

        String customer = "{\"customerFullName\":\"trial8900\",\"customerPhoneNumber\": \"trial8900\", \"customerEmailID\": \"trial8900@g.com\",\"alternateNumber\": \"trial8900\",\"city\": \"trial8900\",\"address\":\"hsr\"}";

        @Test   
        public void testCreateCustomer() throws Exception {

            String URL = "http://localhost:8080/lms/customer/CreateCustomer";
            Mockito.when(customerController.createCustomer(Mockito.any(Customer.class),(BindingResult) Mockito.any(Object.class))).thenReturn(status);
            // execute
            MvcResult result = mockMvc.perform(MockMvcRequestBuilders.post(URL)
                    .contentType(MediaType.APPLICATION_JSON_UTF8)
                    .accept(MediaType.APPLICATION_JSON_UTF8)
                    .content(TestUtils.convertObjectToJsonBytes(customer))).andReturn();
            LOGGER.info(TestUtils.convertObjectToJsonBytes(customer));

            // verify
            MockHttpServletResponse response = result.getResponse();
            LOGGER.info(response);
            int status = result.getResponse().getStatus();

            LOGGER.info(status);

            assertEquals(HttpStatus.CREATED.value(), status);
        }

    }

Answer 1

HTTP 状态 415 是“不支持的媒体类型”。您的端点应使用 @Consumes (也可能是 @Produces)注释进行标记，指定它期望从客户端获得什么类型的媒体类型，以及它返回给客户端的媒体类型类型。

由于我看到您的测试代码使用 MediaType.APPLICATION_JSON_UTF8 来执行您的生产代码，因此您可能应该将您的端点标记为使用和生成 APPLICATION_JSON_UTF8。

然后你还需要确保你的错误处理中没有发生任何严重错误，因为在捕获生产代码生成的异常并生成 HTTP 响应的过程中，你的错误处理代码可能会生成不同的东西，例如生成错误状态响应，其负载包含 HTML 格式的错误消息，其内容类型为“text/html”，需要 json 的测试代码无法理解该消息。