1 /*
2 * Copyright (C) 2009, 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.assertNull;
48 import static org.junit.Assert.assertSame;
49
50 import java.util.ArrayList;
51
52 import org.junit.Test;
53
54 public class FIFORevQueueTest extends RevQueueTestCase<FIFORevQueue> {
55 @Override
56 protected FIFORevQueue create() {
57 return new FIFORevQueue();
58 }
59
60 @Override
61 @Test
62 public void testEmpty() throws Exception {
63 super.testEmpty();
64 assertEquals(0, q.outputType());
65 }
66
67 @Test
68 public void testCloneEmpty() throws Exception {
69 q = new FIFORevQueue(AbstractRevQueue.EMPTY_QUEUE);
70 assertNull(q.next());
71 }
72
73 @Test
74 public void testAddLargeBlocks() throws Exception {
75 final ArrayList<RevCommit> lst = new ArrayList<>();
76 for (int i = 0; i < 3 * BlockRevQueue.Block.BLOCK_SIZE; i++) {
77 final RevCommit c = commit();
78 lst.add(c);
79 q.add(c);
80 }
81 for (int i = 0; i < lst.size(); i++)
82 assertSame(lst.get(i), q.next());
83 }
84
85 @Test
86 public void testUnpopAtFront() throws Exception {
87 final RevCommit a = commit();
88 final RevCommit b = commit();
89 final RevCommit c = commit();
90
91 q.add(a);
92 q.unpop(b);
93 q.unpop(c);
94
95 assertSame(c, q.next());
96 assertSame(b, q.next());
97 assertSame(a, q.next());
98 }
99 }