Cant autowire `WebTestClient` - no auto configuration

Question

We are using spring framework 5 and spring boot 2.0.0.M6 and we are also using WebClient for reactive programming. We created test methods for our reactive rest endpoints and so I looked up for some example on how to do it. I found this one or this and many others which where all the same. They just autowire a WebTestClient. So I tried the same:

@Log @RunWith(SpringRunner.class) @SpringBootTest(webEnvironment = WebEnvironment.RANDOM_PORT) public class MyControllerTest {      @Autowired     private WebTestClient webClient;      @Test     public void getItems() throws Exception {         log.info("Test: '/items/get'");          Parameters params = new Parameters("#s23lkjslökjh12", "2015-09-20/2015-09-27");          this.webClient.post().uri("/items/get")                 .accept(MediaType.APPLICATION_STREAM_JSON)                 .contentType(MediaType.APPLICATION_STREAM_JSON)                 .body(BodyInserters.fromPublisher(Mono.just(params), Parameters.class))                 .exchange()                 .expectStatus().isOk()                 .expectHeader().contentType(MediaType.APPLICATION_STREAM_JSON)                 .expectBody(Basket.class);     } } 

I cannot run this because I get the error:

Could not autowire. No beans of 'WebTestClient' type found. 

So it does not seem that there is a auto configuration existing. Do I use the wrong version or what is the matter here?

Answer 1

Annotate your MyControllerTest test class with @AutoConfigureWebTestClient annotation. That should solve the issue.

Answer 2

The accepted answer keeps throwing that error for me, instead I had to add the webflux starter in addition to the test starter in Spring Boot 2.0.3:

<dependency>     <groupId>org.springframework.boot</groupId>     <artifactId>spring-boot-starter-webflux</artifactId>     <scope>test</scope> </dependency>  <dependency>     <groupId>org.springframework.boot</groupId>     <artifactId>spring-boot-starter-test</artifactId>     <scope>test</scope> </dependency> 

Then use the standard web test annotations:

@RunWith(SpringRunner.class) @SpringBootTest(webEnvironment = WebEnvironment.RANDOM_PORT) public class IntegrationTest {      @Autowired     private WebTestClient webClient;      @Test     public void test() {         this.webClient.get().uri("/ui/hello.xhtml")           .exchange().expectStatus().isOk();     }  }