1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
|
/*
* Copyright (C) 2012 The Android Open Source Project
*
* 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.
*/
#include <errno.h>
#include <gtest/gtest.h>
// Defined in string_posix_strerror_r_wrapper.cpp as a wrapper around the posix
// strerror_r to work around an incompatibility between libc++ (required by
// gtest) and !_GNU_SOURCE.
int posix_strerror_r(int errnum, char* buf, size_t buflen);
TEST(string, posix_strerror_r) {
char buf[256];
// Valid.
ASSERT_EQ(0, posix_strerror_r(0, buf, sizeof(buf)));
#if defined(ANDROID_HOST_MUSL)
ASSERT_STREQ("No error information", buf);
#else
ASSERT_STREQ("Success", buf);
#endif
ASSERT_EQ(0, posix_strerror_r(1, buf, sizeof(buf)));
ASSERT_STREQ("Operation not permitted", buf);
#if defined(__BIONIC__) || defined(ANDROID_HOST_MUSL)
// Invalid.
ASSERT_EQ(0, posix_strerror_r(-1, buf, sizeof(buf)));
# if defined(__BIONIC__)
ASSERT_STREQ("Unknown error -1", buf);
# else
ASSERT_STREQ("No error information", buf);
# endif
ASSERT_EQ(0, posix_strerror_r(1234, buf, sizeof(buf)));
# if defined(__BIONIC__)
ASSERT_STREQ("Unknown error 1234", buf);
# else
ASSERT_STREQ("No error information", buf);
# endif
#else
// glibc returns EINVAL for unknown errors
ASSERT_EQ(EINVAL, posix_strerror_r(-1, buf, sizeof(buf)));
ASSERT_EQ(EINVAL, posix_strerror_r(1234, buf, sizeof(buf)));
#endif
// Buffer too small.
errno = 0;
memset(buf, 0, sizeof(buf));
ASSERT_EQ(ERANGE, posix_strerror_r(EPERM, buf, 2));
ASSERT_STREQ("O", buf);
// POSIX strerror_r returns an error without updating errno.
ASSERT_EQ(0, errno);
}
|
