1/*
2 * Copyright (C) 2012 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#include <gtest/gtest.h>
18
19#include <sys/types.h>
20#include <regex.h>
21
22TEST(regex, smoke) {
23  // A quick test of all the regex functions.
24  regex_t re;
25  ASSERT_EQ(0, regcomp(&re, "ab*c", 0));
26  ASSERT_EQ(0, regexec(&re, "abbbc", 0, NULL, 0));
27  ASSERT_EQ(REG_NOMATCH, regexec(&re, "foo", 0, NULL, 0));
28
29  char buf[80];
30  regerror(REG_NOMATCH, &re, buf, sizeof(buf));
31#if defined(__BIONIC__)
32  ASSERT_STREQ("regexec() failed to match", buf);
33#else
34  ASSERT_STREQ("No match", buf);
35#endif
36
37  regfree(&re);
38}
39
40TEST(regex, match_offsets) {
41  regex_t re;
42  regmatch_t matches[1];
43  ASSERT_EQ(0, regcomp(&re, "b", 0));
44  ASSERT_EQ(0, regexec(&re, "abc", 1, matches, 0));
45  ASSERT_EQ(1, matches[0].rm_so);
46  ASSERT_EQ(2, matches[0].rm_eo);
47  regfree(&re);
48}
49
50TEST(regex, regerror_NULL_0) {
51  regex_t re;
52  int error = regcomp(&re, "*", REG_EXTENDED);
53  ASSERT_NE(0, error);
54
55  // Passing a null pointer and a size of 0 is a legitimate way to ask
56  // how large a buffer we would need for the error message.
57  int error_length = regerror(error, &re, nullptr, 0);
58  ASSERT_GT(error_length, 0);
59}
60