首页 > 解决方案 > WebTestClient 未注入

问题描述

首先,我是 java 堆栈的新手,为我辩护,我可能会问一些愚蠢的问题,感谢您的耐心等待!

我需要的:

集成测试,但没有发出外部请求。这意味着我必须在堆栈中比普通单元测试更深的地方模拟一个依赖项。我也不想在上下文中加载所有堆栈。

预期的:

只能使用 @BeanMock 模拟客户端并通过测试。(从我的试验来看,这只是深入地模拟了第一级)。

实际的:

使用当前设置,我得到

Error creating bean with name 'com.example.demo.SomeControllerTest': Unsatisfied dependency expressed through field 'webClient'

如果我使用@WebFluxTest(SomeController.class)并且ContextConfiguration(...)客户端最终为空。如果我然后添加@TestConfigurationwebflux 抱怨有一些注释冲突@Configuration,例如。

任何想法都非常感谢!

@RestController
public class SomeController {
  private final SomeService someService;

  @Autowired
  public SomeController(SomeService someService) {
    this.someService = someService;
  }


  @GetMapping(value = "/endpoint")
  public Mono<String> endpoint() {
    return someService.get();
  }
}


@Service
public class SomeService {
  private final Client client;

  @Autowired
  public SomeService(Client client) {
    this.client = client;
  }

  public Mono<String> get() {
    return client.build().get().retrieve().bodyToMono(String.class);
  }
}


@Component
public class Client {
  private final HttpServletRequest request;

  @Autowired
  public Client(HttpServletRequest request) {
    this.request = request;
  }

  public WebClient build() {
    return WebClient.builder()
      .baseUrl("https://httpstat.us/200")
      .build();
  }
}

@RunWith(SpringRunner.class)
@TestConfiguration
@SpringBootTest(classes = {
  SomeController.class,
  SomeService.class
})
@AutoConfigureWebTestClient
public class SomeControllerTest {
  @Autowired
  private WebTestClient webClient;

  @MockBean
  private Client client;


  @Before
  public void setUp() {
    when(client.build())
      .thenReturn(WebClient.create("https://httpstat.us/201"));
  }

  @Test
  public void deepMocking() {
    webClient.get()
      .uri("/endpoint")
      .exchange()
      .expectStatus().isOk()
      .expectBody(String.class).isEqualTo("201 Created");
  }
}

标签: springspring-bootmockingintegration-testingspring-webflux

解决方案


@RunWith(SpringRunner.class)
@WebFluxTest(SomeController.class)
@ContextConfiguration(classes = {
   SomeController.class,
   SomeService.class
 })
 public class SomeControllerTest {
   @Autowired
   private WebTestClient webClient;
   // ...
 }

这是必需的组合,但我不明白为什么需要添加SomeController.class到活动上下文中,不@WebFluxTest这样做吗?

或者

@RunWith(SpringRunner.class)
@SpringBootTest(classes = {
  SomeController.class,
  SomeService.class,
})
// @AutoConfigureWebTestClient // does absolutely nothing?
public class SomeControllerTest {
  @Autowired
  private SomeController controller;

  // ...

  @Test
  public void deepMocking() {
    WebTestClient.bindToController(controller)
      .build()
      .get()
      .uri("/endpoint")
      .exchange()
      .expectStatus().isOk()
      .expectBody(String.class).isEqualTo("201 Created");
  }
}

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