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
   9 package org.opendaylight.yangtools.util.concurrent;
  10
  11 import static org.junit.Assert.assertEquals;
  12 import static org.junit.Assert.assertFalse;
  13 import static org.junit.Assert.assertTrue;
  14 import static org.junit.Assert.fail;
  15
  16 import java.util.Arrays;
  17 import java.util.concurrent.TimeUnit;
  18 import org.junit.Test;
  19
  20 /**
  21  * Unit tests for TrackingLinkedBlockingQueue.
  22  *
  23  * @author Thomas Pantelis
  24  */
  25 public class TrackingLinkedBlockingQueueTest {
  26
  27     @Test
  28     public void testOffer() throws InterruptedException {
  29         TrackingLinkedBlockingQueue<String> queue = new TrackingLinkedBlockingQueue<>(2);
  30
  31         assertTrue("offer", queue.offer("1"));
  32         assertEquals("getLargestQueueSize", 1, queue.getLargestQueueSize());
  33         assertEquals("size", 1, queue.size());
  34
  35         assertTrue("offer", queue.offer("2", 1, TimeUnit.MILLISECONDS));
  36         assertEquals("getLargestQueueSize", 2, queue.getLargestQueueSize());
  37         assertEquals("size", 2, queue.size());
  38
  39         assertFalse("offer", queue.offer("3"));
  40         assertEquals("getLargestQueueSize", 2, queue.getLargestQueueSize());
  41         assertEquals("size", 2, queue.size());
  42
  43         assertFalse("offer", queue.offer("4", 1, TimeUnit.MILLISECONDS));
  44         assertEquals("getLargestQueueSize", 2, queue.getLargestQueueSize());
  45         assertEquals("size", 2, queue.size());
  46     }
  47
  48     @Test
  49     public void testPut() throws InterruptedException {
  50         TrackingLinkedBlockingQueue<String> queue = new TrackingLinkedBlockingQueue<>();
  51
  52         queue.put("1");
  53         assertEquals("getLargestQueueSize", 1, queue.getLargestQueueSize());
  54         assertEquals("size", 1, queue.size());
  55
  56         queue.put("2");
  57         assertEquals("getLargestQueueSize", 2, queue.getLargestQueueSize());
  58         assertEquals("size", 2, queue.size());
  59     }
  60
  61     @Test
  62     public void testAdd() {
  63         TrackingLinkedBlockingQueue<String> queue = new TrackingLinkedBlockingQueue<>(2);
  64
  65         assertTrue("add", queue.add("1"));
  66         assertEquals("getLargestQueueSize", 1, queue.getLargestQueueSize());
  67         assertEquals("size", 1, queue.size());
  68
  69         assertTrue("add", queue.add("2"));
  70         assertEquals("getLargestQueueSize", 2, queue.getLargestQueueSize());
  71         assertEquals("size", 2, queue.size());
  72
  73         try {
  74             queue.add("3");
  75             fail("Expected IllegalStateException");
  76         } catch (IllegalStateException e) {
  77             // Expected
  78             assertEquals("getLargestQueueSize", 2, queue.getLargestQueueSize());
  79             assertEquals("size", 2, queue.size());
  80         }
  81     }
  82
  83     @Test
  84     public void testAddAll() {
  85         TrackingLinkedBlockingQueue<String> queue = new TrackingLinkedBlockingQueue<>(3);
  86
  87         queue.addAll(Arrays.asList("1", "2"));
  88         assertEquals("getLargestQueueSize", 2, queue.getLargestQueueSize());
  89         assertEquals("size", 2, queue.size());
  90
  91         try {
  92             queue.addAll(Arrays.asList("3", "4"));
  93             fail("Expected IllegalStateException");
  94         } catch (IllegalStateException e) {
  95             // Expected
  96             assertEquals("getLargestQueueSize", 3, queue.getLargestQueueSize());
  97             assertEquals("size", 3, queue.size());
  98         }
  99     }
 100 }