1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
|
/*
* Copyright (C) 2021, Tencent.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Distribution License v. 1.0 which is available at
* https://www.eclipse.org/org/documents/edl-v10.php.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
package org.eclipse.jgit.internal.storage.commitgraph;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertThrows;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
import org.eclipse.jgit.errors.MissingObjectException;
import org.eclipse.jgit.internal.storage.file.FileRepository;
import org.eclipse.jgit.junit.RepositoryTestCase;
import org.eclipse.jgit.junit.TestRepository;
import org.eclipse.jgit.lib.NullProgressMonitor;
import org.eclipse.jgit.revwalk.RevCommit;
import org.eclipse.jgit.revwalk.RevWalk;
import org.junit.Before;
import org.junit.Test;
public class GraphCommitsTest extends RepositoryTestCase {
private TestRepository<FileRepository> tr;
@Override
@Before
public void setUp() throws Exception {
super.setUp();
tr = new TestRepository<>(db, new RevWalk(db), mockSystemReader);
}
@Test
public void testEmptyRepo() throws Exception {
try (RevWalk rw = new RevWalk(db)) {
GraphCommits commits = GraphCommits.fromWalk(
NullProgressMonitor.INSTANCE, Collections.emptySet(), rw);
assertEquals(0, commits.size());
assertEquals(0, commits.getExtraEdgeCnt());
assertFalse(commits.iterator().hasNext());
}
}
@Test
public void testRepoWithoutExtraEdges() throws Exception {
try (RevWalk rw = new RevWalk(db)) {
RevCommit root = commit();
RevCommit a = commit(root);
RevCommit b = commit(root);
RevCommit tip = commit(a, b);
GraphCommits commits = GraphCommits.fromWalk(
NullProgressMonitor.INSTANCE, Collections.singleton(tip),
rw);
assertEquals(4, commits.size());
assertEquals(0, commits.getExtraEdgeCnt());
verifyOrderOfLookup(List.of(root, a, b, tip), commits);
}
}
@Test
public void testRepoWithExtraEdges() throws Exception {
try (RevWalk rw = new RevWalk(db)) {
RevCommit root = commit();
RevCommit a = commit(root);
RevCommit b = commit(root);
RevCommit c = commit(root);
RevCommit tip = commit(a, b, c);
GraphCommits commits = GraphCommits.fromWalk(
NullProgressMonitor.INSTANCE, Collections.singleton(tip),
rw);
assertEquals(5, commits.size());
assertEquals(2, commits.getExtraEdgeCnt());
verifyOrderOfLookup(List.of(root, a, b, c, tip), commits);
}
}
@Test
public void testCommitNotInLookup() throws Exception {
try (RevWalk rw = new RevWalk(db)) {
RevCommit a = commit();
RevCommit b = commit(a);
GraphCommits commits = GraphCommits.fromWalk(
NullProgressMonitor.INSTANCE, Collections.singleton(a), rw);
assertEquals(1, commits.size());
assertEquals(0, commits.getExtraEdgeCnt());
Iterator<RevCommit> iterator = commits.iterator();
assertEquals(a, iterator.next());
assertFalse(iterator.hasNext());
assertThrows(MissingObjectException.class,
() -> commits.getOidPosition(b));
}
}
private void verifyOrderOfLookup(List<RevCommit> commits,
GraphCommits graphCommits) {
commits = new ArrayList<>(commits);
Collections.sort(commits);
Iterator<RevCommit> expected = commits.iterator();
Iterator<RevCommit> actual = graphCommits.iterator();
while (expected.hasNext()) {
assertEquals(expected.next(), actual.next());
}
assertFalse(actual.hasNext());
}
RevCommit commit(RevCommit... parents) throws Exception {
return tr.commit(parents);
}
}
|
