WebFlux with WebTestClient

You can work with WebFlux by using WebTestClient. The following listing shows how to configure WebTestClient as the test mode:

Maven

<plugin>
    <groupId>org.springframework.cloud</groupId>
    <artifactId>spring-cloud-contract-maven-plugin</artifactId>
    <version>${spring-cloud-contract.version}</version>
    <extensions>true</extensions>
    <configuration>
        <testMode>WEBTESTCLIENT</testMode>
    </configuration>
</plugin>

Gradle

contracts {
		testMode = 'WEBTESTCLIENT'
}

The following example shows how to set up a WebTestClient base class and RestAssured for WebFlux:

import io.restassured.module.webtestclient.RestAssuredWebTestClient;
import org.junit.Before;

public abstract class BeerRestBase {

	@Before
	public void setup() {
		RestAssuredWebTestClient.standaloneSetup(
		new ProducerController(personToCheck -> personToCheck.age >= 20));
	}
}
}

The WebTestClient mode is faster than the EXPLICIT mode.