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
|
//===----------------------------------------------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
// UNSUPPORTED: c++03
// <filesystem>
// bool exists(file_status s) noexcept
// bool exists(path const& p);
// bool exists(path const& p, std::error_code& ec) noexcept;
#include "filesystem_include.h"
#include <type_traits>
#include <cassert>
#include "test_macros.h"
#include "rapid-cxx-test.h"
#include "filesystem_test_helper.h"
using namespace fs;
TEST_SUITE(exists_test_suite)
TEST_CASE(signature_test)
{
file_status s; ((void)s);
const path p; ((void)p);
std::error_code ec; ((void)ec);
ASSERT_NOEXCEPT(exists(s));
ASSERT_NOEXCEPT(exists(p, ec));
ASSERT_NOT_NOEXCEPT(exists(p));
}
TEST_CASE(exists_status_test)
{
struct TestCase {
file_type type;
bool expect;
};
const TestCase testCases[] = {
{file_type::none, false},
{file_type::not_found, false},
{file_type::regular, true},
{file_type::directory, true},
{file_type::symlink, true},
{file_type::block, true},
{file_type::character, true},
{file_type::fifo, true},
{file_type::socket, true},
{file_type::unknown, true}
};
for (auto& TC : testCases) {
file_status s(TC.type);
TEST_CHECK(exists(s) == TC.expect);
}
}
TEST_CASE(test_exist_not_found)
{
static_test_env static_env;
const path p = static_env.DNE;
TEST_CHECK(exists(p) == false);
TEST_CHECK(exists(static_env.Dir) == true);
TEST_CHECK(exists(static_env.Dir / "dne") == false);
// Whether <dir>/dne/.. is considered to exist or not is not necessarily
// something we need to define, but the platform specific behaviour
// does affect a few other tests, so clarify the root cause here.
#ifdef _WIN32
TEST_CHECK(exists(static_env.Dir / "dne" / "..") == true);
#else
TEST_CHECK(exists(static_env.Dir / "dne" / "..") == false);
#endif
std::error_code ec = GetTestEC();
TEST_CHECK(exists(p, ec) == false);
TEST_CHECK(!ec);
}
TEST_CASE(test_exists_fails)
{
#ifdef _WIN32
// Windows doesn't support setting perms::none to trigger failures
// reading directories; test using a special inaccessible directory
// instead.
const path p = GetWindowsInaccessibleDir();
if (p.empty())
TEST_UNSUPPORTED();
#else
scoped_test_env env;
const path dir = env.create_dir("dir");
const path p = env.create_file("dir/file", 42);
permissions(dir, perms::none);
#endif
std::error_code ec;
TEST_CHECK(exists(p, ec) == false);
TEST_CHECK(ec);
TEST_CHECK_THROW(filesystem_error, exists(p));
}
#ifndef _WIN32
// Checking for the existence of an invalid long path name doesn't
// trigger errors on windows.
TEST_CASE(test_name_too_long) {
std::string long_name(2500, 'a');
const path file(long_name);
std::error_code ec;
TEST_CHECK(exists(file, ec) == false);
TEST_CHECK(ec);
}
#endif
TEST_SUITE_END()
|
