fix: add assert/verify to unit test

Author: janweinschenker

client-jetty/src/test/java/de/holisticon/servlet4demo/jettyclient/jetty/JettyClientDemoTest.java

@@ -1,5 +1,19 @@
 package de.holisticon.servlet4demo.jettyclient.jetty;
 
+import static org.junit.Assert.fail;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.anyString;
+import static org.mockito.Mockito.anyLong;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.times;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+import java.util.concurrent.ExecutionException;
+import java.util.concurrent.Phaser;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.TimeoutException;
+
 import org.eclipse.jetty.client.HttpClient;
 import org.eclipse.jetty.client.api.ContentResponse;
 import org.eclipse.jetty.client.api.Request;
@@ -11,16 +25,6 @@
 import org.junit.Before;
 import org.junit.Test;
 
-import java.util.concurrent.ExecutionException;
-import java.util.concurrent.Phaser;
-import java.util.concurrent.TimeUnit;
-import java.util.concurrent.TimeoutException;
-
-import static org.junit.Assert.fail;
-import static org.mockito.ArgumentMatchers.any;
-import static org.mockito.ArgumentMatchers.anyString;
-import static org.mockito.Mockito.*;
-
 public class JettyClientDemoTest {
 
   private JettyClientDemo sut;
@@ -93,6 +97,11 @@ public void testPerformDefaultHttpRequestWithException() {
       fail();
     }
     sut.performDefaultHttpRequest("localhost", 8443, "/some/path");
+    try {
+    verify(httpClient, times(1)).GET(anyString());
+    } catch (InterruptedException | ExecutionException | TimeoutException e) {
+      fail();
+    }
   }
 
   @Test