libgen_test.cpp revision 58b575485c446f9d76ee00f67516ed42cf017769 
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 <libgen.h>
20
21#include <errno.h>
22
23static void TestBasename(const char* in, const char* expected_out) {
24  char* writable_in = (in != NULL) ? strdup(in) : NULL;
25  errno = 0;
26  const char* out = basename(&writable_in[0]);
27  ASSERT_STREQ(expected_out, out) << in;
28  ASSERT_EQ(0, errno) << in;
29  free(writable_in);
30}
31
32static void TestDirname(const char* in, const char* expected_out) {
33  char* writable_in = (in != NULL) ? strdup(in) : NULL;
34  errno = 0;
35  const char* out = dirname(&writable_in[0]);
36  ASSERT_STREQ(expected_out, out) << in;
37  ASSERT_EQ(0, errno) << in;
38  free(writable_in);
39}
40
41TEST(libgen, basename) {
42  TestBasename(NULL, ".");
43  TestBasename("", ".");
44  TestBasename("/usr/lib", "lib");
45  TestBasename("/usr/", "usr");
46  TestBasename("usr", "usr");
47  TestBasename("/", "/");
48  TestBasename(".", ".");
49  TestBasename("..", "..");
50  TestBasename("///", "/");
51  TestBasename("//usr//lib//", "lib");
52}
53
54TEST(libgen, dirname) {
55  TestDirname(NULL, ".");
56  TestDirname("", ".");
57  TestDirname("/usr/lib", "/usr");
58  TestDirname("/usr/", "/");
59  TestDirname("usr", ".");
60  TestDirname(".", ".");
61  TestDirname("..", ".");
62  TestDirname("/", "/");
63}
64
65#if __BIONIC__
66
67static void TestBasename(const char* in, const char* expected_out, int expected_rc,
68                         char* buf, size_t buf_size, int expected_errno) {
69  errno = 0;
70  int rc = basename_r(in, buf, buf_size);
71  ASSERT_EQ(expected_rc, rc) << in;
72  if (rc != -1 && buf != NULL) {
73    ASSERT_STREQ(expected_out, buf) << in;
74  }
75  ASSERT_EQ(expected_errno, errno) << in;
76}
77
78static void TestDirname(const char* in, const char* expected_out, int expected_rc,
79                        char* buf, size_t buf_size, int expected_errno) {
80  errno = 0;
81  int rc = dirname_r(in, buf, buf_size);
82  ASSERT_EQ(expected_rc, rc) << in;
83  if (rc != -1 && buf != NULL) {
84    ASSERT_STREQ(expected_out, buf) << in;
85  }
86  ASSERT_EQ(expected_errno, errno) << in;
87}
88
89TEST(libgen, basename_r) {
90  char buf[256];
91  TestBasename("", ".",  1, NULL, 0, 0);
92  TestBasename("", ".", -1, buf, 0, ERANGE);
93  TestBasename("", ".", -1, buf, 1, ERANGE);
94  TestBasename("", ".", 1, buf, 2, 0);
95  TestBasename("", ".", 1, buf, sizeof(buf), 0);
96  TestBasename("/usr/lib", "lib", 3, buf, sizeof(buf), 0);
97  TestBasename("/usr/", "usr", 3, buf, sizeof(buf), 0);
98  TestBasename("usr", "usr", 3, buf, sizeof(buf), 0);
99  TestBasename("/", "/", 1, buf, sizeof(buf), 0);
100  TestBasename(".", ".", 1, buf, sizeof(buf), 0);
101  TestBasename("..", "..", 2, buf, sizeof(buf), 0);
102}
103
104TEST(libgen, dirname_r) {
105  char buf[256];
106  TestDirname("", ".",  1, NULL, 0, 0);
107  TestDirname("", ".", -1, buf, 0, ERANGE);
108  TestDirname("", ".", -1, buf, 1, ERANGE);
109  TestDirname("", ".", 1, buf, 2, 0);
110  TestDirname("/usr/lib", "/usr", 4, buf, sizeof(buf), 0);
111  TestDirname("/usr/", "/", 1, buf, sizeof(buf), 0);
112  TestDirname("usr", ".", 1, buf, sizeof(buf), 0);
113  TestDirname(".", ".", 1, buf, sizeof(buf), 0);
114  TestDirname("..", ".", 1, buf, sizeof(buf), 0);
115}
116
117#endif
118