使用MockMvc测试异步控制器

Question

我有一个返回DeferredResult的控制器，它是一个POST。

控制器：

@RequestMapping(value = "/{customerId}/cards", method = RequestMethod.POST)
    @ResponseBody
    public DeferredResult<CardSummaryQuery> createCard(
            @PathVariable String customerId,
            @RequestBody CustomerDto payload) {

        DeferredResult<CardSummaryQuery> deferred = new DeferredResult<>();

        Observable<CardSummaryQuery> observable =
                cardService.registerCardObservable(customerId, payload);
        observable.subscribe(deferred::setResult, deferred::setErrorResult);
        return deferred;
    }

我正在尝试测试它，但收到以下错误：“java.lang.AssertionError：Content type not set”

MvcResult result = mockMvc
                .perform(post("/customers/55e5d-4df4r-v4fgt/cards").content(payload)
                        .contentType(MediaType.APPLICATION_JSON))
                .andExpect(status().isOk()).andExpect(request().asyncStarted())
                .andExpect(request().asyncResult("Deferred result")).andReturn();

        mockMvc.perform(asyncDispatch(result)).andExpect(jsonPath("$.success").value(true));

我该怎么做才能解决？

Answer 1

查看描述该主题的https://sdqali.in/blog/2015/11/24/testing-async-responses-using-mockmvc/。