= WebTestClient Security Setup The basic setup looks like this: [tabs] ====== Java:: + [source,java,role="primary"] ---- import static org.springframework.security.test.web.reactive.server.SecurityMockServerConfigurers.springSecurity; import static org.springframework.web.reactive.function.client.ExchangeFilterFunctions.basicAuthentication; @ExtendWith(SpringExtension.class) @ContextConfiguration(classes = HelloWebfluxMethodApplication.class) public class HelloWebfluxMethodApplicationTests { @Autowired ApplicationContext context; WebTestClient rest; @BeforeEach public void setup() { this.rest = WebTestClient .bindToApplicationContext(this.context) // add Spring Security test Support .apply(springSecurity()) .configureClient() .filter(basicAuthentication("user", "password")) .build(); } // ... } ---- Kotlin:: + [source,kotlin,role="secondary"] ---- import org.springframework.security.test.web.reactive.server.SecurityMockServerConfigurers.springSecurity import org.springframework.web.reactive.function.client.ExchangeFilterFunctions.basicAuthentication @ExtendWith(SpringExtension::class) @ContextConfiguration(classes = [HelloWebfluxMethodApplication::class]) class HelloWebfluxMethodApplicationTests { @Autowired lateinit var context: ApplicationContext lateinit var rest: WebTestClient @BeforeEach fun setup() { this.rest = WebTestClient .bindToApplicationContext(this.context) // add Spring Security test Support .apply(springSecurity()) .configureClient() .filter(basicAuthentication("user", "password")) .build() } // ... } ---- ======