1 /*
2 * Copyright (C) 2016, Christian Halstrick <christian.halstrick@sap.com>
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.assertNull;
47 import static org.junit.Assert.assertTrue;
48
49 import org.junit.Test;
50
51 public class RevWalkCarryFlagsTest extends RevWalkTestCase {
52 /**
53 * Test that the uninteresting flag is carried over correctly. Every commit
54 * should have the uninteresting flag resulting in a RevWalk returning no
55 * commit.
56 *
57 * @throws Exception
58 */
59 @Test
60 public void testRevWalkCarryUninteresting_fastClock() throws Exception {
61 final RevCommit a = commit();
62 final RevCommit b = commit(a);
63 final RevCommit c = commit(a);
64 final RevCommit d = commit(c);
65 final RevCommit e = commit(b, d);
66
67 markStart(d);
68 markUninteresting(e);
69 assertNull("Found an unexpected commit", rw.next());
70 }
71
72 /**
73 * Similar to {@link #testRevWalkCarryUninteresting_fastClock()} but the
74 * last merge commit is created so fast that he has the same creationdate as
75 * the previous commit. This will cause the underlying {@link DateRevQueue}
76 * is not able to sort the commits in a way matching the topology. A parent
77 * (one of the commits which are merged) is handled before the child (the
78 * merge commit). This makes carrying over flags more complicated
79 *
80 * @throws Exception
81 */
82 @Test
83 public void testRevWalkCarryUninteresting_SlowClock() throws Exception {
84 final RevCommit a = commit();
85 final RevCommit b = commit(a);
86 final RevCommit c = commit(a);
87 final RevCommit d = commit(c);
88 final RevCommit e = commit(0, b, d);
89
90 markStart(d);
91 markUninteresting(e);
92 assertNull("Found an unexpected commit", rw.next());
93 }
94
95 /**
96 * Similar to {@link #testRevWalkCarryUninteresting_SlowClock()} but the
97 * last merge commit is created with a inconsistent creationdate. The merge
98 * commit has a older creationdate then one of the commits he is merging.
99 *
100 * @throws Exception
101 */
102 @Test
103 public void testRevWalkCarryUninteresting_WrongClock() throws Exception {
104 final RevCommit a = commit();
105 final RevCommit b = commit(a);
106 final RevCommit c = commit(a);
107 final RevCommit d = commit(c);
108 final RevCommit e = commit(-1, b, d);
109
110 markStart(d);
111 markUninteresting(e);
112 assertNull("Found an unexpected commit", rw.next());
113 }
114
115 /**
116 * Same as {@link #testRevWalkCarryUninteresting_SlowClock()} but this time
117 * we focus on the carrying over a custom flag.
118 *
119 * @throws Exception
120 */
121 @Test
122 public void testRevWalkCarryCustom_SlowClock() throws Exception {
123 final RevCommit a = commit();
124 final RevCommit b = commit(a);
125 final RevCommit c = commit(a);
126 final RevCommit d = commit(c);
127 final RevCommit e = commit(0, b, d);
128
129 markStart(d);
130 markStart(e);
131 RevFlag customFlag = rw.newFlag("CUSTOM");
132 e.flags |= customFlag.mask;
133 rw.carry(customFlag);
134
135 // the merge commit has the flag and it should be carried over -> every
136 // commit should have this flag
137 int count = 0;
138 for (RevCommit cm : rw) {
139 assertTrue(
140 "Found a commit which doesn't have the custom flag: " + cm,
141 cm.has(customFlag));
142 count++;
143 }
144 assertTrue("Didn't walked over all commits", count == 5);
145 }
146 }