如何使用 mockMvc 检查响应正文中的字符串

2022-08-31 04:55:18

我有简单的集成测试

@Test
public void shouldReturnErrorMessageToAdminWhenCreatingUserWithUsedUserName() throws Exception {
    mockMvc.perform(post("/api/users").header("Authorization", base64ForTestUser).contentType(MediaType.APPLICATION_JSON)
        .content("{\"userName\":\"testUserDetails\",\"firstName\":\"xxx\",\"lastName\":\"xxx\",\"password\":\"xxx\"}"))
        .andDo(print())
        .andExpect(status().isBadRequest())
        .andExpect(?);
}

在最后一行中,我想将响应正文中收到的字符串与预期字符串进行比较

作为回应,我得到:

MockHttpServletResponse:
          Status = 400
   Error message = null
         Headers = {Content-Type=[application/json]}
    Content type = application/json
            Body = "Username already taken"
   Forwarded URL = null
  Redirected URL = null

尝试了一些内容(),body()的技巧,但没有任何效果。


答案 1

您可以调用并使用返回的对象来获取作为 .andReturn()MvcResultString

见下文:

MvcResult result = mockMvc.perform(post("/api/users").header("Authorization", base64ForTestUser).contentType(MediaType.APPLICATION_JSON)
            .content("{\"userName\":\"testUserDetails\",\"firstName\":\"xxx\",\"lastName\":\"xxx\",\"password\":\"xxx\"}"))
            .andDo(MockMvcResultHandlers.print())
            .andExpect(status().isBadRequest())
            .andReturn();

String content = result.getResponse().getContentAsString();
// do what you will 

答案 2

@Sotirios Delimanolis答案完成这项工作,但是我正在寻找比较这个mockMvc断言中的字符串

所以它在这里

.andExpect(content().string("\"Username already taken - please try with different username\""));

当然,我的断言失败了:

java.lang.AssertionError: Response content expected:
<"Username already taken - please try with different username"> but was:<"Something gone wrong">

因为:

  MockHttpServletResponse:
            Body = "Something gone wrong"

所以这证明了它的工作原理!


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