【发布时间】:2019-05-29 22:05:40
【问题描述】:
我在控制器类中有以下方法:
@PostMapping("employees")
@ResponseStatus(HttpStatus.CREATED)
public Employee addEmployee(@Valid @RequestBody Employee employee) {
try {
return employeeRepository.save(employee);
} catch (DataIntegrityViolationException e) {
e.printStackTrace();
Optional<Employee> existingEmployee = employeeRepository.findByTagId(employee.getTagId());
if (!existingEmployee.isPresent()) {
//The exception root cause was not due to a unique ID violation then
throw e;
}
throw new DuplicateEntryException(
"An employee named " + existingEmployee.get().getName() + " already uses RFID tagID " + existingEmployee.get().getTagId());
}
}
Employee 类有一个名为tagId 的字符串字段,上面有一个@NaturalId 注释。 (请忽略没有专门的服务层,这是一个小而简单的应用程序)。
这是我的自定义DuplicateEntryException:
@ResponseStatus(HttpStatus.CONFLICT)
public class DuplicateEntryException extends RuntimeException {
public DuplicateEntryException() {
super();
}
public DuplicateEntryException(String message) {
super(message);
}
public DuplicateEntryException(String message, Throwable cause) {
super(message, cause);
}
}
感谢@ResponseStatus(HttpStatus.CONFLICT) 行,当我手动测试该方法时,我得到了带有时间戳、状态、错误、消息和路径字段的默认 Spring Boot REST 消息。
我还在熟悉 Spring 中的测试,我有这个测试:
@Test
public void _02addEmployee_whenDuplicateTagId_thenExceptionIsReturned() throws Exception {
Employee sampleEmployee = new Employee("tagId01", "John Doe");
System.out.println("Employees in the database: " + repository.findAll().size()); //prints 1
// @formatter:off
mvc.perform(post("/employees").contentType(MediaType.APPLICATION_JSON).content(JsonUtil.toJson(sampleEmployee)))
.andExpect(status().isConflict())
.andExpect(content().contentTypeCompatibleWith(MediaType.APPLICATION_JSON))
.andExpect(jsonPath("$.message").value("An employee named John Doe already uses RFID tagID tagId01"));
// @formatter:on
int employeeCount = repository.findAll().size();
Assert.assertEquals(1, employeeCount);
}
您可以猜到,首先运行另一个测试,称为_01addEmployee_whenValidInput_thenCreateEmployee(),它插入一个具有相同 tagID 的员工,这在测试#2 中使用。测试 #1 通过,但测试 #2 没有通过,因为 HTTP 响应如下所示:
MockHttpServletResponse:
Status = 409
Error message = null
Headers = {}
Content type = null
Body =
Forwarded URL = null
Redirected URL = null
Cookies = []
在上述响应之前的控制台中,我看到了这个:
Resolved Exception:
Type = ai.aitia.rfid_employee.exception.DuplicateEntryException
所以我的第二次测试失败了,因为java.lang.AssertionError: Content type not set。
与手动测试相比,是什么导致了不同的行为?为什么不返回?
{
"timestamp": "2019-01-03T09:47:33.371+0000",
"status": 409,
"error": "Conflict",
"message": "An employee named John Doe already uses RFID tagID tagId01",
"path": "/employees"
}
更新:我在使用不同的 REST 端点时也遇到了同样的情况,测试用例生成了我自己的 ResourceNotFoundException,但 MockMvc 对象没有接收到实际的 JSON 错误对象.
Update2:这是我对测试类的类级别注释:
@RunWith(SpringRunner.class)
@SpringBootTest(webEnvironment = WebEnvironment.RANDOM_PORT, classes = RfidEmployeeApplication.class)
@AutoConfigureMockMvc
@AutoConfigureTestDatabase
@FixMethodOrder(MethodSorters.NAME_ASCENDING)
@TestPropertySource(locations = "classpath:application-test.properties")
【问题讨论】:
-
您使用的是@RestController 还是@Controller?
-
是的,前者
-
就像我说的,这是我已经在使用的那个
-
你试过@PostMapping(value="employees",produces = "application/json")吗?
-
我刚试过了,没啥影响
标签: spring-boot spring-mvc spring-test junit5 spring-test-mvc