Spring Boot Web RestClient 测试

Question

我得到了这样的实现：

@Service
class AbcService {

private final RestClient client;

  public AbcService(@Value("url") final String url) {
    this.restClient = RestClient.builder().baseUrl(url).build();
  }

  String getPlace(String id) {
    return restClient.get()
      .uri("places/{id}", id)
      .retrieve()
      .body(String.class);
  }
}

我尝试使用

MockRestServiceServer

进行测试，但它对我不起作用 - 我有错误

java.lang.IllegalStateException: Unable to use auto-configured MockRestServiceServer since a mock server customizer has not been bound to a RestTemplate or RestClient

测试

@RestClientTest(AbcService.class)
class AbcServiceTest {
  @Autowired
  AbcService instance;

  @Autowired
  MockRestServiceServer server;

  @BeforeEach
  void setup() {
    System.setProperty("url", "server123");
  }

  @Test
  void test() {
    server
      .expect(requestTo("places/id1"))
      .andRespond(withSuccess("string", APPLICATION_JSON));

    assertEquals("string", instance.getPlace("id1"));
  }
}

你能帮我吗？

Answer 1

我建议为 RestClient 客户端创建一个 bean； 当启动应用程序时正确加载 bean 时。

@Bean 
RestClient client() {
return RestClient.builder().baseUrl(url).build();
}

并且直接使用service中的bean，而不是在service类中设置url