common/util/src/test/java/org/opendaylight/yangtools/util/concurrent/TrackingLinkedBlockingQueueTest.java

   1 /*
   2  * Copyright (c) 2014 Brocade Communications Systems, Inc. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8 package org.opendaylight.yangtools.util.concurrent;
   9
  10 import static org.junit.Assert.assertEquals;
  11 import static org.junit.Assert.assertFalse;
  12 import static org.junit.Assert.assertThrows;
  13 import static org.junit.Assert.assertTrue;
  14
  15 import java.util.Arrays;
  16 import java.util.concurrent.TimeUnit;
  17 import org.junit.Test;
  18
  19 /**
  20  * Unit tests for TrackingLinkedBlockingQueue.
  21  *
  22  * @author Thomas Pantelis
  23  */
  24 public class TrackingLinkedBlockingQueueTest {
  25
  26     @Test
  27     public void testOffer() throws InterruptedException {
  28         TrackingLinkedBlockingQueue<String> queue = new TrackingLinkedBlockingQueue<>(2);
  29
  30         assertTrue("offer", queue.offer("1"));
  31         assertEquals("getLargestQueueSize", 1, queue.getLargestQueueSize());
  32         assertEquals("size", 1, queue.size());
  33
  34         assertTrue("offer", queue.offer("2", 1, TimeUnit.MILLISECONDS));
  35         assertEquals("getLargestQueueSize", 2, queue.getLargestQueueSize());
  36         assertEquals("size", 2, queue.size());
  37
  38         assertFalse("offer", queue.offer("3"));
  39         assertEquals("getLargestQueueSize", 2, queue.getLargestQueueSize());
  40         assertEquals("size", 2, queue.size());
  41
  42         assertFalse("offer", queue.offer("4", 1, TimeUnit.MILLISECONDS));
  43         assertEquals("getLargestQueueSize", 2, queue.getLargestQueueSize());
  44         assertEquals("size", 2, queue.size());
  45     }
  46
  47     @Test
  48     public void testPut() throws InterruptedException {
  49         TrackingLinkedBlockingQueue<String> queue = new TrackingLinkedBlockingQueue<>();
  50
  51         queue.put("1");
  52         assertEquals("getLargestQueueSize", 1, queue.getLargestQueueSize());
  53         assertEquals("size", 1, queue.size());
  54
  55         queue.put("2");
  56         assertEquals("getLargestQueueSize", 2, queue.getLargestQueueSize());
  57         assertEquals("size", 2, queue.size());
  58     }
  59
  60     @Test
  61     public void testAdd() {
  62         TrackingLinkedBlockingQueue<String> queue = new TrackingLinkedBlockingQueue<>(2);
  63
  64         assertTrue("add", queue.add("1"));
  65         assertEquals("getLargestQueueSize", 1, queue.getLargestQueueSize());
  66         assertEquals("size", 1, queue.size());
  67
  68         assertTrue("add", queue.add("2"));
  69         assertEquals("getLargestQueueSize", 2, queue.getLargestQueueSize());
  70         assertEquals("size", 2, queue.size());
  71
  72         assertThrows(IllegalStateException.class, () -> queue.add("3"));
  73         assertEquals("getLargestQueueSize", 2, queue.getLargestQueueSize());
  74         assertEquals("size", 2, queue.size());
  75     }
  76
  77     @Test
  78     public void testAddAll() {
  79         TrackingLinkedBlockingQueue<String> queue = new TrackingLinkedBlockingQueue<>(3);
  80
  81         queue.addAll(Arrays.asList("1", "2"));
  82         assertEquals("getLargestQueueSize", 2, queue.getLargestQueueSize());
  83         assertEquals("size", 2, queue.size());
  84
  85         assertThrows(IllegalStateException.class, () -> queue.addAll(Arrays.asList("3", "4")));
  86         assertEquals("getLargestQueueSize", 3, queue.getLargestQueueSize());
  87         assertEquals("size", 3, queue.size());
  88     }
  89 }