我有简单的积分测试
@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，我想比较在响应体中接收到的字符串与预期的字符串
我得到的回答是:
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content()， body()的一些技巧，但都不起作用。
@Sotirios Delimanolis回答做的工作，但我正在寻找这个mockMvc断言中的比较字符串
就在这里
.andExpect(content().string("\"Username already taken - please try with different username\""));
当然，我的断言是失败的:
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"
所以这就是它有效的证明!
这是一种更适合生产的方式，如果你可能有大的json响应，那么你不必用json字符串来混乱你的测试文件，只需从静态资源文件夹加载它们并直接断言它们。
@Test
@DisplayName("invalid fields")
void invalidfields() throws Exception {
String request = getResourceFileAsString("test-data/http-request/invalid-fields.json");
String response_file_path = "test-data/http-response/error-messages/invalid-fields.json";
String expected_response = getResourceFileAsString(response_file_path);
mockMvc.perform(evaluateRulesOnData(TRACKING_ID.toString(), request))
.andExpect(status().isBadRequest())
.andExpect(content().json(expected_response));
}
从类路径加载测试文件的助手函数
public static String getResourceFileAsString(String fileName) throws IOException {
Resource resource = new ClassPathResource(fileName);
File file = resource.getFile();
return new String(Files.readAllBytes(file.toPath()));
}
预期的响应有一个包含列表中许多元素的数组，这些元素在每次测试运行期间都是随机顺序匹配的。
下面是一个例子，如何解析JSON响应，甚至如何以JSON形式发送一个bean请求:
@Autowired
protected MockMvc mvc;
private static final ObjectMapper MAPPER = new ObjectMapper()
.configure(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS, false)
.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false)
.registerModule(new JavaTimeModule());
public static String requestBody(Object request) {
try {
return MAPPER.writeValueAsString(request);
} catch (JsonProcessingException e) {
throw new RuntimeException(e);
}
}
public static <T> T parseResponse(MvcResult result, Class<T> responseClass) {
try {
String contentAsString = result.getResponse().getContentAsString();
return MAPPER.readValue(contentAsString, responseClass);
} catch (IOException e) {
throw new RuntimeException(e);
}
}
@Test
public void testUpdate() {
Book book = new Book();
book.setTitle("1984");
book.setAuthor("Orwell");
MvcResult requestResult = mvc.perform(post("http://example.com/book/")
.contentType(MediaType.APPLICATION_JSON)
.content(requestBody(book)))
.andExpect(status().isOk())
.andReturn();
UpdateBookResponse updateBookResponse = parseResponse(requestResult, UpdateBookResponse.class);
assertEquals("1984", updateBookResponse.getTitle());
assertEquals("Orwell", updateBookResponse.getAuthor());
}
正如您在这里看到的，Book是一个请求DTO, UpdateBookResponse是一个从JSON解析的响应对象。您可能想要更改Jackson的ObjectMapper配置。
