JUnit 测试错误地通过了错误的参数

JUnit Test wrongly pass with wrong parameters

我尝试测试控制器的方法并获得正确的异常。它仅针对 ConstraintViolationException (javax.validation) 失败,而其他测试如 MissingServletRequestParameterException 或 MethodArgumentTypeMismatchException 测试按预期工作。

下面是我的代码的一部分,在控制器 (@Validated) 中,在我添加这些注释的方法中。 还有 ControllerAdvice 和测试。 邮递员,当我输入错误的参数 returns 时,正确的响应是: {"value":500,"name":"ConstraintViolationException","message":"param1 错误"},但由于某些奇怪的原因,JUnit 要求 200 而不是 500。

控制器

    @ResponseBody
    public Board method(@Min(value = 0) @Max(value = 5)  @RequestParam(value = "param1", required = true) int param1,
                     @Min(value = 0) @Max(value = 1)  @RequestParam(value = "param2", required = true) int param3){
        return service.meth(param1, param2);
    }

控制器建议

    @ExceptionHandler(value = ConstraintViolationException.class)
    public ErrorResponse handleInternalServerErrors(HttpServletRequest request, Exception ex) {
        String message = "";
        if(ex instanceof ConstraintViolationException) {
            Map<String, Collection<String>> errors = new LinkedHashMap<>();
            final String[] queryParam = {""};
            ((ConstraintViolationException) ex).getConstraintViolations().forEach(constraintViolation -> {
                String queryParamPath = constraintViolation.getPropertyPath().toString();
                queryParam[0] = queryParamPath.contains(".") ?
                        queryParamPath.substring(queryParamPath.indexOf(".") + 1) :
                        queryParamPath;
            });
            message = "The " + queryParam[0] + " is wrong";
        }

        return new ErrorResponse(
                HttpStatus.INTERNAL_SERVER_ERROR.value(),
                ex.getClass().getSimpleName(),
                message);
    }

测试

 @Test
    void TryToGetException() throws Exception {
        given(service.meth(1231,1231)).willReturn(new CustObj());
        MockHttpServletResponse response = mvc.perform(get("/endpoint")
                .param("param1", "1231")
                .param("param2", "1231")

        ).andReturn().getResponse();

        assertEquals(response.getStatus(), HttpStatus.INTERNAL_SERVER_ERROR.value());
    }

预期:200 实际:500

我应该更改什么才能在测试中获得异常?

提前致谢!

private MockMvc mvcContext;
@Autowired
private WebApplicationContext context;
@BeforeEach
public void setUp() {
    mvcContext = MockMvcBuilders
            .webAppContextSetup(context)
            .build();
}

通过使用webAppContextSetup,问题解决了。 它考虑了@Min、@Max(在我的例子中,通常是@Valid 注释) 所以我可以有例外来测试它!

@Test
void testConstraintViolationException() throws Exception {
   MockHttpServletResponse response = mvcContext.perform(get("/endpoint")
            .param("param1", "1231")
            .param("param2", "1231")
    assertEquals(response.getStatus(), HttpStatus.INTERNAL_SERVER_ERROR.value());
}