1
2
3
4
5
6
7
8
9
10
11 package org.eclipse.jgit.revwalk;
12
13 import static org.junit.Assert.assertEquals;
14 import static org.junit.Assert.assertTrue;
15
16 import java.io.IOException;
17 import java.util.Set;
18
19 import org.eclipse.jgit.internal.storage.dfs.DfsRepositoryDescription;
20 import org.eclipse.jgit.internal.storage.dfs.InMemoryRepository;
21 import org.eclipse.jgit.junit.TestRepository;
22 import org.eclipse.jgit.lib.AnyObjectId;
23 import org.eclipse.jgit.lib.Sets;
24 import org.eclipse.jgit.revwalk.filter.MessageRevFilter;
25 import org.eclipse.jgit.revwalk.filter.NotRevFilter;
26 import org.eclipse.jgit.revwalk.filter.ObjectFilter;
27 import org.junit.After;
28 import org.junit.Before;
29 import org.junit.Test;
30
31 public class ObjectWalkFilterTest {
32 private TestRepository<InMemoryRepository> tr;
33 private ObjectWalk rw;
34
35
36 private static final int OBJECT_COUNT = 12;
37
38 @Before
39 public void setUp() throws Exception {
40 tr = new TestRepository<>(new InMemoryRepository(
41 new DfsRepositoryDescription("test")));
42 rw = new ObjectWalk(tr.getRepository());
43
44 rw.markStart(tr.branch("master").commit()
45 .add("a/a", "1")
46 .add("b/b", "2")
47 .add("c/c", "3")
48 .message("initial commit")
49
50 .child()
51 .rm("a/a")
52 .add("a/A", "1")
53 .message("capitalize a/a")
54
55 .child()
56 .rm("a/A")
57 .add("a/a", "1")
58 .message("make a/A lowercase again")
59 .create());
60 }
61
62 @After
63 public void tearDown() {
64 rw.close();
65 tr.getRepository().close();
66 }
67
68 private static class BlacklistObjectFilter extends ObjectFilter {
69 final Set<AnyObjectId> badObjects;
70
71 BlacklistObjectFilter(Set<AnyObjectId> badObjects) {
72 this.badObjects = badObjects;
73 }
74
75 @Override
76 public boolean include(ObjectWalk walker, AnyObjectId o) {
77 return !badObjects.contains(o);
78 }
79 }
80
81 private AnyObjectId resolve(String revstr) throws Exception {
82 return tr.getRepository().resolve(revstr);
83 }
84
85 private int countObjects() throws IOException {
86 int n = 0;
87 while (rw.next() != null) {
88 n++;
89 }
90 while (rw.nextObject() != null) {
91 n++;
92 }
93 return n;
94 }
95
96 @Test
97 public void testDefaultFilter() throws Exception {
98 assertTrue("filter is ALL",
99 rw.getObjectFilter() == ObjectFilter.ALL);
100 assertEquals(OBJECT_COUNT, countObjects());
101 }
102
103 @Test
104 public void testObjectFilterCanFilterOutBlob() throws Exception {
105 AnyObjectId one = rw.parseAny(resolve("master:a/a"));
106 AnyObjectId two = rw.parseAny(resolve("master:b/b"));
107 rw.setObjectFilter(new BlacklistObjectFilter(Sets.of(one, two)));
108
109
110 assertEquals(OBJECT_COUNT - 2, countObjects());
111 }
112
113 @Test
114 public void testFilteringCommitsHasNoEffect() throws Exception {
115 AnyObjectId initial = rw.parseCommit(resolve("master^^"));
116 rw.setObjectFilter(new BlacklistObjectFilter(Sets.of(initial)));
117 assertEquals(OBJECT_COUNT, countObjects());
118 }
119
120 @Test
121 public void testRevFilterAndObjectFilterCanCombine() throws Exception {
122 AnyObjectId one = rw.parseAny(resolve("master:a/a"));
123 AnyObjectId two = rw.parseAny(resolve("master:b/b"));
124 rw.setObjectFilter(new BlacklistObjectFilter(Sets.of(one, two)));
125 rw.setRevFilter(NotRevFilter.create(
126 MessageRevFilter.create("capitalize")));
127
128
129 assertEquals(OBJECT_COUNT - 5, countObjects());
130 }
131
132 @Test
133 public void testFilteringTreeFiltersSubtrees() throws Exception {
134 AnyObjectId capitalizeTree = rw.parseAny(resolve("master^:"));
135 rw.setObjectFilter(new BlacklistObjectFilter(
136 Sets.of(capitalizeTree)));
137
138
139 assertEquals(OBJECT_COUNT - 2, countObjects());
140 }
141
142 @Test
143 public void testFilteringTreeFiltersReferencedBlobs() throws Exception {
144 AnyObjectId a1 = rw.parseAny(resolve("master:a"));
145 AnyObjectId a2 = rw.parseAny(resolve("master^:a"));
146 rw.setObjectFilter(new BlacklistObjectFilter(Sets.of(a1, a2)));
147
148
149 assertEquals(OBJECT_COUNT - 3, countObjects());
150 }
151 }