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Diffstat (limited to 'jimfs/src/test/java/com/google/common/jimfs/RegexGlobMatcherTest.java')
-rw-r--r-- | jimfs/src/test/java/com/google/common/jimfs/RegexGlobMatcherTest.java | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/jimfs/src/test/java/com/google/common/jimfs/RegexGlobMatcherTest.java b/jimfs/src/test/java/com/google/common/jimfs/RegexGlobMatcherTest.java new file mode 100644 index 0000000..5836e78 --- /dev/null +++ b/jimfs/src/test/java/com/google/common/jimfs/RegexGlobMatcherTest.java @@ -0,0 +1,101 @@ +/* + * 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 + } +} |