就集成测试而言，Wiremock确实非常强大。我喜欢Wiremock在不改变beans的情况下处理< code>URL响应的方式(我们在mockito或powermock中进行单元测试的方式)。
@Mock
SomeRepository someRepository; //Zombie mutation
@Mock
AnotherComponent anotherComponent; //mutation
@InjectMocks
SomeService someService; //mutation - This is the class we are unit testing
在集成测试中，我希望所有3个层都得到测试并模拟外部依赖
+---> Repository -----> MySQL (I managed this with in-memory h2 database)
|
controller---> service
|
+---> Proxy ---------> Another REST service (some way to mock the call???)
是否可以对 Spring 启动测试、mockito 或 powermock 做同样的事情（因为我已经在使用它们，只是不想向项目添加新库）
以下是我们如何在Wiresck中进行存根。
service.stubFor(get(urlEqualTo("/another/service/call"))
.willReturn(jsonResponse(toJson(objResponse))));
上面的代码意味着，在我们的测试中，每当调用外部服务（http://example.com/another/service/call）时，它都会被拦截并注入示例响应——并且外部调用不会离开系统
示例代码
@SpringBootTest
@AutoConfigureMockMvc
public class StubTest {
@Autowired
private MockMvc mockMvc;
private MockRestServiceServer server;
@BeforeEach
public void init() {
RestTemplate restTemplate = new RestTemplate();
server = MockRestServiceServer.bindTo(restTemplate).build();
}
@Test
public void testFakeLogin() throws Exception {
String sampleResponse = stubSampleResponse();
//Actual URL to test
String result = mockMvc.perform(get("/s1/method1")
.contentType("application/json"))
.andExpect(status().isOk()).andReturn().getResponse().getContentAsString();
assertThat(result).isNotNull();
assertThat(result).isEqualTo(sampleResponse);
}
private String stubSampleResponse() {
String response = "Here is response";
//URL to stub (this is in another service)
server.expect(requestTo("/v1/s2/dependent-method"))
.andExpect(method(HttpMethod.GET))
.andRespond(withSuccess(response, MediaType.APPLICATION_JSON));
return response;
}
}
Feign客户
@FeignClient(value = "service-s2", url = "http://localhost:8888/")
public interface S2Api {
@GetMapping("/v1/s2/dependent-method")
public String dependentMethod();
}
但我得到了以下错误，这意味着这个url没有被存根。
feign.RetryableException: Connection refused: connect executing GET http://localhost:8888/v1/s2/dependent-method
at feign.FeignException.errorExecuting(FeignException.java:213) ~[feign-core-10.4.0.jar:na]
是的，使用< code > MockRestServiceServer 是可能的。
例子：
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpMethod;
import org.springframework.http.MediaType;
import org.springframework.test.context.junit4.SpringRunner;
import static org.springframework.test.web.client.match.MockRestRequestMatchers.*;
import static org.springframework.test.web.client.response.MockRestResponseCreators.withSuccess;
import org.springframework.test.web.client.MockRestServiceServer;
import org.springframework.boot.test.autoconfigure.web.client.AutoConfigureWebClient;
import org.springframework.boot.test.autoconfigure.web.client.RestClientTest;
@RunWith(SpringRunner.class)
@RestClientTest(MyRestClient.class)
@AutoConfigureWebClient(registerRestTemplate = true)
public class MyRestClientTest {
@Autowired
private MockRestServiceServer server;
@Test
public void getInfo() {
String response = "response";
server.expect(requestTo("http://localhost:8090" + "/another/service/call"))
.andExpect(method(HttpMethod.GET))
.andRespond(withSuccess(response,MediaType.APPLICATION_JSON));
}
}
