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
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
|
//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// REQUIRES: can-create-symlinks
// UNSUPPORTED: c++03, c++11, c++14
// UNSUPPORTED: no-filesystem
// UNSUPPORTED: availability-filesystem-missing
// Starting in Android N (API 24), SELinux policy prevents the shell user from
// creating a hard link.
// XFAIL: LIBCXX-ANDROID-FIXME && !android-device-api={{21|22|23}}
// <filesystem>
// bool equivalent(path const& lhs, path const& rhs);
// bool equivalent(path const& lhs, path const& rhs, std::error_code& ec) noexcept;
#include <filesystem>
#include <type_traits>
#include <cassert>
#include "assert_macros.h"
#include "test_macros.h"
#include "filesystem_test_helper.h"
namespace fs = std::filesystem;
using namespace fs;
static void signature_test() {
const path p;
((void)p);
std::error_code ec;
((void)ec);
ASSERT_NOEXCEPT(equivalent(p, p, ec));
ASSERT_NOT_NOEXCEPT(equivalent(p, p));
}
static void equivalent_test() {
static_test_env static_env;
struct TestCase {
path lhs;
path rhs;
bool expect;
};
const TestCase testCases[] = {
{static_env.Dir, static_env.Dir, true},
{static_env.File, static_env.Dir, false},
{static_env.Dir, static_env.SymlinkToDir, true},
{static_env.Dir, static_env.SymlinkToFile, false},
{static_env.File, static_env.File, true},
{static_env.File, static_env.SymlinkToFile, true},
};
for (auto& TC : testCases) {
std::error_code ec;
assert(equivalent(TC.lhs, TC.rhs, ec) == TC.expect);
assert(!ec);
}
}
static void equivalent_reports_error_if_input_dne() {
static_test_env static_env;
const path E = static_env.File;
const path DNE = static_env.DNE;
{ // Test that an error is reported when either of the paths don't exist
std::error_code ec = GetTestEC();
assert(equivalent(E, DNE, ec) == false);
assert(ec);
assert(ec != GetTestEC());
}
{
std::error_code ec = GetTestEC();
assert(equivalent(DNE, E, ec) == false);
assert(ec);
assert(ec != GetTestEC());
}
{
TEST_THROWS_TYPE(filesystem_error, equivalent(DNE, E));
TEST_THROWS_TYPE(filesystem_error, equivalent(E, DNE));
}
{ // Test that an exception is thrown if both paths do not exist.
TEST_THROWS_TYPE(filesystem_error, equivalent(DNE, DNE));
}
{
std::error_code ec = GetTestEC();
assert(equivalent(DNE, DNE, ec) == false);
assert(ec);
assert(ec != GetTestEC());
}
}
static void equivalent_hardlink_succeeds() {
scoped_test_env env;
path const file = env.create_file("file", 42);
const path hl1 = env.create_hardlink(file, "hl1");
const path hl2 = env.create_hardlink(file, "hl2");
assert(equivalent(file, hl1));
assert(equivalent(file, hl2));
assert(equivalent(hl1, hl2));
}
#ifndef _WIN32
static void equivalent_is_other_succeeds() {
scoped_test_env env;
path const file = env.create_file("file", 42);
const path fifo1 = env.create_fifo("fifo1");
const path fifo2 = env.create_fifo("fifo2");
// Required to test behavior for inputs where is_other(p) is true.
assert(is_other(fifo1));
assert(!equivalent(file, fifo1));
assert(!equivalent(fifo2, file));
assert(!equivalent(fifo1, fifo2));
assert(equivalent(fifo1, fifo1));
}
#endif // _WIN32
int main(int, char**) {
signature_test();
equivalent_test();
equivalent_reports_error_if_input_dne();
equivalent_hardlink_succeeds();
#ifndef _WIN32
equivalent_is_other_succeeds();
#endif
return 0;
}
|
