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
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
|
// Copyright 2017 The Bazel Authors. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package com.google.devtools.build.lib.vfs;
import static com.google.common.truth.Truth.assertThat;
import static java.util.stream.Collectors.toList;
import com.google.common.collect.Lists;
import com.google.common.testing.EqualsTester;
import com.google.devtools.build.lib.clock.BlazeClock;
import com.google.devtools.build.lib.vfs.inmemoryfs.InMemoryFileSystem;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.util.Collections;
import java.util.List;
import org.junit.Before;
import org.junit.Test;
/** Tests for {@link Path}. */
public abstract class PathAbstractTest {
private FileSystem fileSystem;
private boolean isCaseSensitive;
@Before
public void setup() {
fileSystem = new InMemoryFileSystem(BlazeClock.instance(), DigestHashFunction.MD5);
isCaseSensitive = OsPathPolicy.getFilePathOs().isCaseSensitive();
}
@Test
public void testStripsTrailingSlash() {
// compare string forms
assertThat(create("/foo/bar/").getPathString()).isEqualTo("/foo/bar");
// compare fragment forms
assertThat(create("/foo/bar/")).isEqualTo(create("/foo/bar"));
}
@Test
public void testBasename() throws Exception {
assertThat(create("/foo/bar").getBaseName()).isEqualTo("bar");
assertThat(create("/foo/").getBaseName()).isEqualTo("foo");
assertThat(create("/foo").getBaseName()).isEqualTo("foo");
assertThat(create("/").getBaseName()).isEmpty();
}
@Test
public void testNormalStringsDoNotAllocate() {
String normal1 = "/a/b/hello.txt";
assertThat(create(normal1).getPathString()).isSameAs(normal1);
// Sanity check our testing strategy
String notNormal = "/a/../b";
assertThat(create(notNormal).getPathString()).isNotSameAs(notNormal);
}
@Test
public void testComparableSortOrder() {
List<Path> list =
Lists.newArrayList(
create("/zzz"),
create("/ZZZ"),
create("/ABC"),
create("/aBc"),
create("/AbC"),
create("/abc"));
Collections.sort(list);
List<String> result = list.stream().map(Path::getPathString).collect(toList());
if (isCaseSensitive) {
assertThat(result).containsExactly("/ABC", "/AbC", "/ZZZ", "/aBc", "/abc", "/zzz").inOrder();
} else {
// Partial ordering among case-insensitive items guaranteed by Collections.sort stability
assertThat(result).containsExactly("/ABC", "/aBc", "/AbC", "/abc", "/zzz", "/ZZZ").inOrder();
}
}
@Test
public void testSerialization() throws Exception {
FileSystem oldFileSystem = Path.getFileSystemForSerialization();
try {
Path.setFileSystemForSerialization(fileSystem);
Path root = fileSystem.getPath("/");
Path p1 = fileSystem.getPath("/foo");
Path p2 = fileSystem.getPath("/foo/bar");
ByteArrayOutputStream bos = new ByteArrayOutputStream();
ObjectOutputStream oos = new ObjectOutputStream(bos);
oos.writeObject(root);
oos.writeObject(p1);
oos.writeObject(p2);
ByteArrayInputStream bis = new ByteArrayInputStream(bos.toByteArray());
ObjectInputStream ois = new ObjectInputStream(bis);
Path dsRoot = (Path) ois.readObject();
Path dsP1 = (Path) ois.readObject();
Path dsP2 = (Path) ois.readObject();
new EqualsTester()
.addEqualityGroup(root, dsRoot)
.addEqualityGroup(p1, dsP1)
.addEqualityGroup(p2, dsP2)
.testEquals();
assertThat(p2.startsWith(p1)).isTrue();
assertThat(p2.startsWith(dsP1)).isTrue();
assertThat(dsP2.startsWith(p1)).isTrue();
assertThat(dsP2.startsWith(dsP1)).isTrue();
// Regression test for a very specific bug in compareTo involving our incorrect usage of
// reference equality rather than logical equality.
String relativePathStringA = "child/grandchildA";
String relativePathStringB = "child/grandchildB";
assertThat(
p1.getRelative(relativePathStringA).compareTo(dsP1.getRelative(relativePathStringB)))
.isEqualTo(
p1.getRelative(relativePathStringA).compareTo(p1.getRelative(relativePathStringB)));
} finally {
Path.setFileSystemForSerialization(oldFileSystem);
}
}
protected Path create(String path) {
return Path.create(path, fileSystem);
}
}
|
