content: /*
   * Licensed to the Apache Software Foundation (ASF) under one or more
   * contributor license agreements. See the NOTICE file distributed with
   * this work for additional information regarding copyright ownership.
   * The ASF licenses this file to You under the Apache License, Version 2.0
   * (the "License"); you may not use this file except in compliance with
   * the License. You may obtain a copy of the License at
   *
   *    http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package org.apache.kafka.common.test.api;
  
  import org.junit.jupiter.api.Test;
  
  import static org.junit.jupiter.api.Assertions.assertFalse;
  import static org.junit.jupiter.api.Assertions.assertTrue;
  
  public class DetectThreadLeakTest {
  
      private static class LeakThread implements Runnable {
          @Override
          public void run() {
              try {
                  Thread.sleep(20000);
              } catch (InterruptedException e) {
                  // this can be neglected
              }
          }
      }
  
      @Test
      public void testThreadLeak() throws InterruptedException {
          DetectThreadLeak detectThreadLeak = DetectThreadLeak.of(thread -> true);
          Thread leakThread = new Thread(new LeakThread());
          try {
              leakThread.start();
              assertTrue(detectThreadLeak.newThreads().contains(leakThread));
              leakThread.interrupt();
          } finally {
              leakThread.join();
          }
          assertFalse(leakThread.isAlive(), "Can't interrupt the thread");
          assertFalse(detectThreadLeak.newThreads().contains(leakThread));
      }
  
      @Test
      public void testDetectThreadLeakWithOverrideExpectedThreadNames() throws InterruptedException {
          String threadName = "test-thread";
          DetectThreadLeak detectThreadLeak = DetectThreadLeak.of(thread -> !thread.getName().equals(threadName));
          Thread leakThread = new Thread(new LeakThread(), threadName);
          try {
              leakThread.start();
              assertFalse(detectThreadLeak.newThreads().contains(leakThread));
              leakThread.interrupt();
          } finally {
              leakThread.join();
          }
          assertFalse(leakThread.isAlive(), "Can't interrupt the thread");
      }
  }
  