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1   /*
2    * Copyright (C) 2009-2010, Google Inc.
3    * and other copyright owners as documented in the project's IP log.
4    *
5    * This program and the accompanying materials are made available
6    * under the terms of the Eclipse Distribution License v1.0 which
7    * accompanies this distribution, is reproduced below, and is
8    * available at http://www.eclipse.org/org/documents/edl-v10.php
9    *
10   * All rights reserved.
11   *
12   * Redistribution and use in source and binary forms, with or
13   * without modification, are permitted provided that the following
14   * conditions are met:
15   *
16   * - Redistributions of source code must retain the above copyright
17   *   notice, this list of conditions and the following disclaimer.
18   *
19   * - Redistributions in binary form must reproduce the above
20   *   copyright notice, this list of conditions and the following
21   *   disclaimer in the documentation and/or other materials provided
22   *   with the distribution.
23   *
24   * - Neither the name of the Eclipse Foundation, Inc. nor the
25   *   names of its contributors may be used to endorse or promote
26   *   products derived from this software without specific prior
27   *   written permission.
28   *
29   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
30   * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
31   * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
32   * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
33   * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
34   * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
35   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
36   * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
37   * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
38   * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
39   * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
40   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
41   * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
42   */
43  
44  package org.eclipse.jgit.revwalk;
45  
46  import static org.junit.Assert.assertEquals;
47  import static org.junit.Assert.assertFalse;
48  import static org.junit.Assert.assertNull;
49  
50  import org.junit.Test;
51  
52  public class DateRevQueueTest extends RevQueueTestCase<DateRevQueue> {
53  	@Override
54  	protected DateRevQueue create() {
55  		return new DateRevQueue();
56  	}
57  
58  	@Override
59  	@Test
60  	public void testEmpty() throws Exception {
61  		super.testEmpty();
62  		assertNull(q.peek());
63  		assertEquals(Generator.SORT_COMMIT_TIME_DESC, q.outputType());
64  	}
65  
66  	@Test
67  	public void testCloneEmpty() throws Exception {
68  		q = new DateRevQueue(AbstractRevQueue.EMPTY_QUEUE);
69  		assertNull(q.next());
70  	}
71  
72  	@Test
73  	public void testInsertOutOfOrder() throws Exception {
74  		final RevCommit a = parseBody(commit());
75  		final RevCommit b = parseBody(commit(10, a));
76  		final RevCommit c1 = parseBody(commit(5, b));
77  		final RevCommit c2 = parseBody(commit(-50, b));
78  
79  		q.add(c2);
80  		q.add(a);
81  		q.add(b);
82  		q.add(c1);
83  
84  		assertCommit(c1, q.next());
85  		assertCommit(b, q.next());
86  		assertCommit(a, q.next());
87  		assertCommit(c2, q.next());
88  		assertNull(q.next());
89  	}
90  
91  	@Test
92  	public void testInsertTie() throws Exception {
93  		final RevCommit a = parseBody(commit());
94  		final RevCommit b = parseBody(commit(0, a));
95  		{
96  			q = create();
97  			q.add(a);
98  			q.add(b);
99  
100 			assertCommit(a, q.next());
101 			assertCommit(b, q.next());
102 			assertNull(q.next());
103 		}
104 		{
105 			q = create();
106 			q.add(b);
107 			q.add(a);
108 
109 			assertCommit(b, q.next());
110 			assertCommit(a, q.next());
111 			assertNull(q.next());
112 		}
113 	}
114 
115 	@Test
116 	public void testCloneFIFO() throws Exception {
117 		final RevCommit a = parseBody(commit());
118 		final RevCommit b = parseBody(commit(200, a));
119 		final RevCommit c = parseBody(commit(200, b));
120 
121 		final FIFORevQueue src = new FIFORevQueue();
122 		src.add(a);
123 		src.add(b);
124 		src.add(c);
125 
126 		q = new DateRevQueue(src);
127 		assertFalse(q.everbodyHasFlag(RevWalk.UNINTERESTING));
128 		assertFalse(q.anybodyHasFlag(RevWalk.UNINTERESTING));
129 		assertCommit(c, q.peek());
130 		assertCommit(c, q.peek());
131 
132 		assertCommit(c, q.next());
133 		assertCommit(b, q.next());
134 		assertCommit(a, q.next());
135 		assertNull(q.next());
136 	}
137 }