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
|
/*
* Copyright 2013 Google Inc.
*
* 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.common.jimfs;
import static org.junit.Assert.assertEquals;
import com.google.common.collect.ImmutableSet;
import java.nio.file.FileSystem;
import java.nio.file.FileSystems;
import java.nio.file.PathMatcher;
import java.util.regex.Pattern;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
/**
* Tests for {@link PathMatcher} instances created by {@link GlobToRegex}.
*
* @author Colin Decker
*/
@RunWith(JUnit4.class)
public class RegexGlobMatcherTest extends AbstractGlobMatcherTest {
@Override
protected PathMatcher matcher(String pattern) {
return PathMatchers.getPathMatcher(
"glob:" + pattern, "/", ImmutableSet.<PathNormalization>of());
}
@Override
protected PathMatcher realMatcher(String pattern) {
FileSystem defaultFileSystem = FileSystems.getDefault();
if ("/".equals(defaultFileSystem.getSeparator())) {
return defaultFileSystem.getPathMatcher("glob:" + pattern);
}
return null;
}
@Test
public void testRegexTranslation() {
assertGlobRegexIs("foo", "foo");
assertGlobRegexIs("/", "/");
assertGlobRegexIs("?", "[^/]");
assertGlobRegexIs("*", "[^/]*");
assertGlobRegexIs("**", ".*");
assertGlobRegexIs("/foo", "/foo");
assertGlobRegexIs("?oo", "[^/]oo");
assertGlobRegexIs("*oo", "[^/]*oo");
assertGlobRegexIs("**/*.java", ".*/[^/]*\\.java");
assertGlobRegexIs("[a-z]", "[[^/]&&[a-z]]");
assertGlobRegexIs("[!a-z]", "[[^/]&&[^a-z]]");
assertGlobRegexIs("[-a-z]", "[[^/]&&[-a-z]]");
assertGlobRegexIs("[!-a-z]", "[[^/]&&[^-a-z]]");
assertGlobRegexIs("{a,b,c}", "(a|b|c)");
assertGlobRegexIs("{?oo,[A-Z]*,foo/**}", "([^/]oo|[[^/]&&[A-Z]][^/]*|foo/.*)");
}
@Test
public void testRegexEscaping() {
assertGlobRegexIs("(", "\\(");
assertGlobRegexIs(".", "\\.");
assertGlobRegexIs("^", "\\^");
assertGlobRegexIs("$", "\\$");
assertGlobRegexIs("+", "\\+");
assertGlobRegexIs("\\\\", "\\\\");
assertGlobRegexIs("]", "\\]");
assertGlobRegexIs(")", "\\)");
assertGlobRegexIs("}", "\\}");
}
@Test
public void testRegexTranslationWithMultipleSeparators() {
assertGlobRegexIs("?", "[^\\\\/]", "\\/");
assertGlobRegexIs("*", "[^\\\\/]*", "\\/");
assertGlobRegexIs("/", "[\\\\/]", "\\/");
assertGlobRegexIs("\\\\", "[\\\\/]", "\\/");
}
private static void assertGlobRegexIs(String glob, String regex) {
assertGlobRegexIs(glob, regex, "/");
}
private static void assertGlobRegexIs(String glob, String regex, String separators) {
assertEquals(regex, GlobToRegex.toRegex(glob, separators));
Pattern.compile(regex); // ensure the regex syntax is valid
}
}
|
