[JAVA-9450] Fix Timeout integration tests

spring-web-modules/spring-rest-http-2/src/main/java/com/baeldung/requesttimeout/configuration/WebClientConfiguration.java

@@ -1,5 +1,6 @@
 package com.baeldung.requesttimeout.configuration;
 
+import org.springframework.beans.factory.annotation.Value;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.http.client.reactive.ReactorClientHttpConnector;
@@ -11,10 +12,13 @@ import java.time.Duration;
 @Configuration
 public class WebClientConfiguration {
 
+    @Value("${server.port}")
+    private int serverPort;
+
     @Bean
     public WebClient webClient() {
         return WebClient.builder()
-          .baseUrl("http://localhost:8080")
+          .baseUrl("http://localhost:" + serverPort)
           .clientConnector(new ReactorClientHttpConnector(HttpClient.create().responseTimeout(Duration.ofMillis(250))))
           .build();
     }

spring-web-modules/spring-rest-http-2/src/main/java/com/baeldung/requesttimeout/domain/BookRepository.java

@@ -1,14 +1,21 @@
 package com.baeldung.requesttimeout.domain;
 
+import com.google.common.base.Stopwatch;
 import org.springframework.data.jpa.repository.JpaRepository;
 
+import static java.util.concurrent.TimeUnit.SECONDS;
+
 public interface BookRepository extends JpaRepository<Book, String> {
 
-    default int wasteTime() {
+    default void wasteTime() {
+        Stopwatch watch = Stopwatch.createStarted();
+
+        // delay for 2 seconds
+        while (watch.elapsed(SECONDS) < 2) {
             int i = Integer.MIN_VALUE;
             while (i < Integer.MAX_VALUE) {
                 i++;
             }
-        return i;
+        }
     }
 }

spring-web-modules/spring-rest-http-2/src/test/java/com/baeldung/requesttimeout/RequestTimeoutIntegrationTest.java

@@ -1,40 +1,53 @@
 package com.baeldung.requesttimeout;
 
+import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.boot.test.context.SpringBootTest.WebEnvironment;
+import org.springframework.boot.web.server.LocalServerPort;
 import org.springframework.test.context.junit4.SpringRunner;
 import org.springframework.web.reactive.function.client.WebClient;
-import org.springframework.web.reactive.function.client.WebClientRequestException;
+import org.springframework.web.reactive.function.client.WebClientResponseException;
 
-@SpringBootTest
+@SpringBootTest(webEnvironment = WebEnvironment.RANDOM_PORT)
 @RunWith(SpringRunner.class)
 public class RequestTimeoutIntegrationTest {
 
-    private static final WebClient WEB_CLIENT = WebClient.builder().baseUrl("http://localhost:8080").build();
+    @LocalServerPort
+    private int port;
 
-    @Test(expected = WebClientRequestException.class)
+    private WebClient webClient;
+
+    @Before
+    public void setUp() {
+        webClient = WebClient.builder()
+          .baseUrl("http://localhost:" + port)
+          .build();
+    }
+
+    @Test(expected = WebClientResponseException.InternalServerError.class)
     public void givenTransactionTimeout_whenTimeExpires_thenReceiveException() {
         getAuthor("transactional");
     }
 
-    @Test(expected = WebClientRequestException.class)
+    @Test(expected = WebClientResponseException.InternalServerError.class)
     public void givenResilience4jTimeLimiter_whenTimeExpires_thenReceiveException() {
         getAuthor("resilience4j");
     }
 
-    @Test(expected = WebClientRequestException.class)
+    @Test(expected = WebClientResponseException.ServiceUnavailable.class)
     public void givenMvcRequestTimeout_whenTimeExpires_thenReceiveException() {
         getAuthor("mvc-request-timeout");
     }
 
-    @Test(expected = WebClientRequestException.class)
+    @Test(expected = WebClientResponseException.InternalServerError.class)
     public void givenWebClientTimeout_whenTimeExpires_thenReceiveException() {
         getAuthor("webclient");
     }
 
     private void getAuthor(String authorPath) {
-        WEB_CLIENT.get()
+        webClient.get()
           .uri(uriBuilder -> uriBuilder
             .path("/author/" + authorPath)
             .queryParam("title", "title")
@@ -43,4 +56,5 @@ public class RequestTimeoutIntegrationTest {
           .bodyToMono(String.class)
           .block();
     }
+
 }