1 // Copyright 2015 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #include "base/strings/pattern.h"
6 #include "base/strings/utf_string_conversions.h"
7 #include "testing/gtest/include/gtest/gtest.h"
8
9 namespace base {
10
TEST(StringUtilTest,MatchPatternTest)11 TEST(StringUtilTest, MatchPatternTest) {
12 EXPECT_TRUE(MatchPattern("www.google.com", "*.com"));
13 EXPECT_TRUE(MatchPattern("www.google.com", "*"));
14 EXPECT_FALSE(MatchPattern("www.google.com", "www*.g*.org"));
15 EXPECT_TRUE(MatchPattern("Hello", "H?l?o"));
16 EXPECT_FALSE(MatchPattern("www.google.com", "http://*)"));
17 EXPECT_FALSE(MatchPattern("www.msn.com", "*.COM"));
18 EXPECT_TRUE(MatchPattern("Hello*1234", "He??o\\*1*"));
19 EXPECT_FALSE(MatchPattern("", "*.*"));
20 EXPECT_TRUE(MatchPattern("", "*"));
21 EXPECT_TRUE(MatchPattern("", "?"));
22 EXPECT_TRUE(MatchPattern("", ""));
23 EXPECT_FALSE(MatchPattern("Hello", ""));
24 EXPECT_TRUE(MatchPattern("Hello*", "Hello*"));
25 EXPECT_TRUE(MatchPattern("abcd", "*???"));
26 EXPECT_FALSE(MatchPattern("abcd", "???"));
27 EXPECT_TRUE(MatchPattern("abcb", "a*b"));
28 EXPECT_FALSE(MatchPattern("abcb", "a?b"));
29
30 // Test UTF8 matching.
31 EXPECT_TRUE(MatchPattern("heart: \xe2\x99\xa0", "*\xe2\x99\xa0"));
32 EXPECT_TRUE(MatchPattern("heart: \xe2\x99\xa0.", "heart: ?."));
33 EXPECT_TRUE(MatchPattern("hearts: \xe2\x99\xa0\xe2\x99\xa0", "*"));
34 // Invalid sequences should be handled as a single invalid character.
35 EXPECT_TRUE(MatchPattern("invalid: \xef\xbf\xbe", "invalid: ?"));
36 // If the pattern has invalid characters, it shouldn't match anything.
37 EXPECT_FALSE(MatchPattern("\xf4\x90\x80\x80", "\xf4\x90\x80\x80"));
38
39 // Test UTF16 character matching.
40 EXPECT_TRUE(MatchPattern(UTF8ToUTF16("www.google.com"),
41 UTF8ToUTF16("*.com")));
42 EXPECT_TRUE(MatchPattern(UTF8ToUTF16("Hello*1234"),
43 UTF8ToUTF16("He??o\\*1*")));
44
45 // Some test cases that might cause naive implementations to exhibit
46 // exponential run time or fail.
47 EXPECT_TRUE(MatchPattern("Hello", "He********************************o"));
48 EXPECT_TRUE(MatchPattern("123456789012345678", "?????????????????*"));
49 EXPECT_TRUE(MatchPattern("aaaaaaaaaaab", "a*a*a*a*a*a*a*a*a*a*a*b"));
50 }
51
52 } // namespace base
53