1 //===----------------------------------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8
9 // UNSUPPORTED: c++03, c++11, c++14
10 // UNSUPPORTED: no-filesystem
11 // UNSUPPORTED: availability-filesystem-missing
12
13 // <filesystem>
14
15 // bool is_directory(file_status s) noexcept
16 // bool is_directory(path const& p);
17 // bool is_directory(path const& p, std::error_code& ec) noexcept;
18
19 #include <filesystem>
20 #include <type_traits>
21 #include <cassert>
22
23 #include "assert_macros.h"
24 #include "test_macros.h"
25 #include "filesystem_test_helper.h"
26 namespace fs = std::filesystem;
27 using namespace fs;
28
signature_test()29 static void signature_test()
30 {
31 file_status s; ((void)s);
32 const path p; ((void)p);
33 std::error_code ec; ((void)ec);
34 ASSERT_NOEXCEPT(is_directory(s));
35 ASSERT_NOEXCEPT(is_directory(p, ec));
36 ASSERT_NOT_NOEXCEPT(is_directory(p));
37 }
38
is_directory_status_test()39 static void is_directory_status_test()
40 {
41 struct TestCase {
42 file_type type;
43 bool expect;
44 };
45 const TestCase testCases[] = {
46 {file_type::none, false},
47 {file_type::not_found, false},
48 {file_type::regular, false},
49 {file_type::directory, true},
50 {file_type::symlink, false},
51 {file_type::block, false},
52 {file_type::character, false},
53 {file_type::fifo, false},
54 {file_type::socket, false},
55 {file_type::unknown, false}
56 };
57 for (auto& TC : testCases) {
58 file_status s(TC.type);
59 assert(is_directory(s) == TC.expect);
60 }
61 }
62
test_exist_not_found()63 static void test_exist_not_found()
64 {
65 static_test_env static_env;
66 const path p = static_env.DNE;
67 assert(is_directory(p) == false);
68 }
69
static_env_test()70 static void static_env_test()
71 {
72 static_test_env static_env;
73 assert(is_directory(static_env.Dir));
74 assert(is_directory(static_env.SymlinkToDir));
75 assert(!is_directory(static_env.File));
76 }
77
test_is_directory_fails()78 static void test_is_directory_fails()
79 {
80 scoped_test_env env;
81 #ifdef _WIN32
82 // Windows doesn't support setting perms::none to trigger failures
83 // reading directories; test using a special inaccessible directory
84 // instead.
85 const path p = GetWindowsInaccessibleDir();
86 if (p.empty())
87 return;
88 #else
89 const path dir = env.create_dir("dir");
90 const path p = env.create_dir("dir/dir2");
91 permissions(dir, perms::none);
92 #endif
93
94 std::error_code ec;
95 assert(is_directory(p, ec) == false);
96 assert(ec);
97
98 TEST_THROWS_TYPE(filesystem_error, is_directory(p));
99 }
100
main(int,char **)101 int main(int, char**) {
102 signature_test();
103 is_directory_status_test();
104 test_exist_not_found();
105 static_env_test();
106 test_is_directory_fails();
107
108 return 0;
109 }
110