WebTestClient throws "No qualifying bean ... as autowire candidate"

Question

I currently wrote a put request I wanted to test via WebTestClient. I followed some tutorials and adapted my case to it. Testing the request results in an error:

"NOSuchBeanDefinitionException: No qualifying bean of type 'org.springframework.test.web.reactive.server.WebTestClient' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}"

I looked up some solutions on SO like this one: Cant autowire `WebTestClient` - no auto configuration but couldn't make it work, despite of the hints there.

Here is the test code:

@SpringBootTest
@AutoConfigureWebTestClient
public class DemonstratorApplicationTests {

private P4uServiceImpl p4uService = new P4uServiceImpl();

@Autowired
WebTestClient webTestClient;

@MockBean
ReqP4uAccount account;

@Test
void testPutAccount(){

    ReqP4uAccount request = p4uService.buildRequest("testAccount");

    this.webTestClient.put()
            .uri("/account")
            .contentType(MediaType.APPLICATION_JSON)
            .body(request, ReqP4uAccount.class)
            .exchange()
            .expectStatus().isOk()
            .expectBody(P4uAccount.class);
}
}

Has anyone an idea what's wrong with the test setup? Thx in advance

Did you validate that your pom.xml has the same dependencies (TEST) dependencies as the SO link you pasted? — JCompetence, Jan 07 '22 at 14:25
Dependencies I included are: spring-boot-starter-web, spring-boot-starter-test, spring-boot-starter-webflux @SMA — letsgetraw, Jan 07 '22 at 14:28

JCompetence · Accepted Answer · 2022-01-07T15:13:43.357

The following works:

<dependencies>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-webflux</artifactId>
    </dependency>

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

@SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
@AutoConfigureWebTestClient
public class DemoApplicationTests {

    @Autowired
    WebTestClient webTestClient;

If you remove (webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT), it will fail.

If you look at the WebTestClientAutoConfiguration , you can see that it has @ConditionalOnClass({ WebClient.class, WebTestClient.class }) and that could be why it wont work, unless Springboot starts up the web application context during (webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)

/**
 * Auto-configuration for {@link WebTestClient}.
 *
 * @author Stephane Nicoll
 * @author Andy Wilkinson
 * @since 2.0.0
 */
@Configuration(proxyBeanMethods = false)
@ConditionalOnClass({ WebClient.class, WebTestClient.class })
@AutoConfigureAfter({ CodecsAutoConfiguration.class, WebFluxAutoConfiguration.class })
@Import(WebTestClientSecurityConfiguration.class)
@EnableConfigurationProperties
public class WebTestClientAutoConfiguration {

WebTestClient throws "No qualifying bean ... as autowire candidate"

1 Answers1