BAEL-3242: Use random port for test execution in spring-vertx module

spring-vertx/src/test/java/com/baeldung/vertxspring/VertxSpringApplicationIntegrationTest.java

@@ -1,27 +1,33 @@
 package com.baeldung.vertxspring;
 
-import static org.junit.Assert.assertEquals;
-
 import org.junit.Test;
 import org.junit.runner.RunWith;
+import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.context.SpringBootTest;
 import org.springframework.boot.test.web.client.TestRestTemplate;
 import org.springframework.http.ResponseEntity;
+import org.springframework.test.context.ActiveProfiles;
 import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
 
+import static org.junit.Assert.assertEquals;
+
 @RunWith(SpringJUnit4ClassRunner.class)
 @SpringBootTest
+@ActiveProfiles("test")
 public class VertxSpringApplicationIntegrationTest {
 
+    @Autowired
+    private Integer port;
+
     private TestRestTemplate restTemplate = new TestRestTemplate();
 
     @Test
     public void givenUrl_whenReceivedArticles_thenSuccess() throws InterruptedException {
-        ResponseEntity<String> responseEntity = restTemplate.getForEntity("http://localhost:8080/api/baeldung/articles", String.class);
+        ResponseEntity<String> responseEntity = restTemplate
+                .getForEntity("http://localhost:" + port + "/api/baeldung/articles", String.class);
 
         assertEquals(200, responseEntity.getStatusCodeValue());
     }
-
 }