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#ifndef _GNU_SOURCE
18  #define _GNU_SOURCE 1
19#endif
20
21#include <string.h>
22
23#if defined(basename)
24  #error basename should not be defined at this point
25#endif
26
27static const char* gnu_basename(const char* in) {
28  return basename(in);
29}
30
31#include <libgen.h>
32
33#if !defined(basename)
34  #error basename should be defined at this point
35#endif
36
37static char* posix_basename(char* in) {
38  return basename(in);
39}
40
41#include <errno.h>
42#include <gtest/gtest.h>
43
44static void __TestGnuBasename(const char* in, const char* expected_out, int line) {
45  errno = 0;
46  const char* out = gnu_basename(in);
47  ASSERT_STREQ(expected_out, out) << "(" << line << "): " << in << std::endl;
48  ASSERT_EQ(0, errno) << "(" << line << "): " << in << std::endl;
49}
50
51static void __TestPosixBasename(const char* in, const char* expected_out, int line) {
52  char* writable_in = (in != NULL) ? strdup(in) : NULL;
53  errno = 0;
54  const char* out = posix_basename(&writable_in[0]);
55  ASSERT_STREQ(expected_out, out) << "(" << line << "): " << in << std::endl;
56  ASSERT_EQ(0, errno) << "(" << line << "): " << in << std::endl;
57  free(writable_in);
58}
59
60#define TestGnuBasename(in, expected) __TestGnuBasename(in, expected, __LINE__)
61#define TestPosixBasename(in, expected) __TestPosixBasename(in, expected, __LINE__)
62
63TEST(libgen_basename, gnu_basename) {
64  // GNU's basename doesn't accept NULL
65  // TestGnuBasename(NULL, ".");
66  TestGnuBasename("", "");
67  TestGnuBasename("/usr/lib", "lib");
68  TestGnuBasename("/system/bin/sh/", "");
69  TestGnuBasename("/usr/", "");
70  TestGnuBasename("usr", "usr");
71  TestGnuBasename("/", "");
72  TestGnuBasename(".", ".");
73  TestGnuBasename("..", "..");
74  TestGnuBasename("///", "");
75  TestGnuBasename("//usr//lib//", "");
76}
77
78TEST(libgen_basename, posix_basename) {
79  TestPosixBasename(NULL, ".");
80  TestPosixBasename("", ".");
81  TestPosixBasename("/usr/lib", "lib");
82  TestPosixBasename("/system/bin/sh/", "sh");
83  TestPosixBasename("/usr/", "usr");
84  TestPosixBasename("usr", "usr");
85  TestPosixBasename("/", "/");
86  TestPosixBasename(".", ".");
87  TestPosixBasename("..", "..");
88  TestPosixBasename("///", "/");
89  TestPosixBasename("//usr//lib//", "lib");
90}
91