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99dee823 | 1 | // Copyright (C) 2015-2021 Free Software Foundation, Inc. |
641cb5a6 JW |
2 | // |
3 | // This file is part of the GNU ISO C++ Library. This library is free | |
4 | // software; you can redistribute it and/or modify it under the | |
5 | // terms of the GNU General Public License as published by the | |
6 | // Free Software Foundation; either version 3, or (at your option) | |
7 | // any later version. | |
8 | ||
9 | // This library is distributed in the hope that it will be useful, | |
10 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | // GNU General Public License for more details. | |
13 | ||
14 | // You should have received a copy of the GNU General Public License along | |
15 | // with this library; see the file COPYING3. If not see | |
16 | // <http://www.gnu.org/licenses/>. | |
17 | ||
de4db54f | 18 | // { dg-options "-std=gnu++17" } |
641cb5a6 JW |
19 | // { dg-do run { target c++17 } } |
20 | // { dg-require-filesystem-ts "" } | |
21 | ||
22 | #include <filesystem> | |
23 | #include <testsuite_hooks.h> | |
24 | #include <testsuite_fs.h> | |
25 | ||
26 | namespace fs = std::filesystem; | |
27 | ||
28 | void | |
29 | test01() | |
30 | { | |
31 | const std::error_code bad_ec = make_error_code(std::errc::invalid_argument); | |
32 | std::error_code ec; | |
33 | ||
34 | // Test non-existent path. | |
35 | const auto p = __gnu_test::nonexistent_path(); | |
36 | fs::recursive_directory_iterator iter(p, ec); | |
37 | VERIFY( ec ); | |
38 | VERIFY( iter == end(iter) ); | |
39 | ||
40 | // Test empty directory. | |
41 | ec = bad_ec; | |
42 | create_directory(p, fs::current_path(), ec); | |
43 | VERIFY( !ec ); | |
44 | ec = bad_ec; | |
45 | iter = fs::recursive_directory_iterator(p, ec); | |
46 | VERIFY( !ec ); | |
47 | VERIFY( iter == end(iter) ); | |
48 | ||
49 | // Test non-empty directory. | |
50 | ec = bad_ec; | |
51 | create_directories(p / "d1/d2", ec); | |
52 | VERIFY( !ec ); | |
53 | ec = bad_ec; | |
54 | iter = fs::recursive_directory_iterator(p, ec); | |
55 | VERIFY( !ec ); | |
56 | VERIFY( iter != end(iter) ); | |
57 | VERIFY( iter->path() == p/"d1" ); | |
58 | ++iter; | |
59 | VERIFY( iter->path() == p/"d1/d2" ); | |
60 | ++iter; | |
61 | VERIFY( iter == end(iter) ); | |
62 | ||
9534a5e6 | 63 | #if ! (defined (__MINGW32__) || defined(__MINGW64__)) |
641cb5a6 JW |
64 | // Test inaccessible directory. |
65 | ec = bad_ec; | |
66 | permissions(p, fs::perms::none, ec); | |
67 | VERIFY( !ec ); | |
68 | iter = fs::recursive_directory_iterator(p, ec); | |
69 | VERIFY( ec ); | |
70 | VERIFY( iter == end(iter) ); | |
71 | ||
72 | // Test inaccessible directory, skipping permission denied. | |
73 | const auto opts = fs::directory_options::skip_permission_denied; | |
74 | iter = fs::recursive_directory_iterator(p, opts, ec); | |
75 | VERIFY( !ec ); | |
76 | VERIFY( iter == end(iter) ); | |
77 | ||
78 | // Test inaccessible sub-directory. | |
79 | ec = bad_ec; | |
80 | permissions(p, fs::perms::owner_all, ec); | |
81 | VERIFY( !ec ); | |
82 | ec = bad_ec; | |
83 | permissions(p/"d1/d2", fs::perms::none, ec); | |
84 | VERIFY( !ec ); | |
85 | ec = bad_ec; | |
86 | iter = fs::recursive_directory_iterator(p, ec); | |
87 | VERIFY( !ec ); | |
88 | VERIFY( iter != end(iter) ); | |
89 | VERIFY( iter->path() == p/"d1" ); | |
90 | ++iter; // should recurse into d1 | |
4e6c4298 | 91 | VERIFY( iter != end(iter) ); |
641cb5a6 JW |
92 | VERIFY( iter->path() == p/"d1/d2" ); |
93 | iter.increment(ec); // should fail to recurse into p/d1/d2 | |
94 | VERIFY( ec ); | |
95 | VERIFY( iter == end(iter) ); | |
96 | ||
97 | // Test inaccessible sub-directory, skipping permission denied. | |
98 | ec = bad_ec; | |
99 | iter = fs::recursive_directory_iterator(p, opts, ec); | |
100 | VERIFY( !ec ); | |
101 | VERIFY( iter != end(iter) ); | |
102 | VERIFY( iter->path() == p/"d1" ); | |
103 | ++iter; // should recurse into d1 | |
4e6c4298 | 104 | VERIFY( iter != end(iter) ); |
641cb5a6 JW |
105 | VERIFY( iter->path() == p/"d1/d2" ); |
106 | ec = bad_ec; | |
107 | iter.increment(ec); // should fail to recurse into p/d1/d2, so skip it | |
108 | VERIFY( !ec ); | |
109 | VERIFY( iter == end(iter) ); | |
9534a5e6 | 110 | #endif |
641cb5a6 JW |
111 | |
112 | permissions(p/"d1/d2", fs::perms::owner_all, ec); | |
113 | remove_all(p, ec); | |
114 | } | |
115 | ||
116 | void | |
117 | test02() | |
118 | { | |
119 | const std::error_code bad_ec = make_error_code(std::errc::invalid_argument); | |
120 | std::error_code ec; | |
121 | const auto p = __gnu_test::nonexistent_path(); | |
122 | ec = bad_ec; | |
123 | create_directories(p / "d1/d2", ec); | |
124 | VERIFY( !ec ); | |
125 | ||
126 | // Test post-increment (libstdc++/71005) | |
127 | ec = bad_ec; | |
128 | auto iter = fs::recursive_directory_iterator(p, ec); | |
129 | VERIFY( !ec ); | |
130 | VERIFY( iter != end(iter) ); | |
131 | const auto entry1 = *iter; | |
132 | const auto entry2 = *iter++; | |
133 | VERIFY( entry1 == entry2 ); | |
134 | VERIFY( entry1.path() == p/"d1" ); | |
135 | const auto entry3 = *iter; | |
136 | const auto entry4 = *iter++; | |
137 | VERIFY( entry3 == entry4 ); | |
138 | VERIFY( entry3.path() == p/"d1/d2" ); | |
139 | VERIFY( iter == end(iter) ); | |
140 | ||
141 | remove_all(p, ec); | |
142 | } | |
143 | ||
144 | void | |
145 | test03() | |
146 | { | |
147 | const std::error_code bad_ec = make_error_code(std::errc::invalid_argument); | |
148 | std::error_code ec; | |
149 | const auto p = __gnu_test::nonexistent_path(); | |
150 | ec = bad_ec; | |
151 | create_directories(p / "longer_than_small_string_buffer", ec); | |
152 | VERIFY( !ec ); | |
153 | ||
154 | // Test for no reallocation on each dereference (this is a GNU extension) | |
155 | auto iter = fs::recursive_directory_iterator(p, ec); | |
156 | const auto* s1 = iter->path().c_str(); | |
157 | const auto* s2 = iter->path().c_str(); | |
158 | VERIFY( s1 == s2 ); | |
159 | ||
160 | remove_all(p, ec); | |
161 | } | |
162 | ||
163 | void | |
164 | test04() | |
165 | { | |
166 | // libstdc++/71004 | |
167 | const fs::recursive_directory_iterator it; | |
168 | VERIFY( it == end(it) ); | |
169 | } | |
170 | ||
171 | void | |
172 | test05() | |
173 | { | |
174 | auto p = __gnu_test::nonexistent_path(); | |
175 | create_directory(p); | |
9534a5e6 | 176 | create_directory(p / "x"); |
641cb5a6 JW |
177 | fs::recursive_directory_iterator it(p), endit; |
178 | VERIFY( begin(it) == it ); | |
179 | static_assert( noexcept(begin(it)), "begin is noexcept" ); | |
180 | VERIFY( end(it) == endit ); | |
181 | static_assert( noexcept(end(it)), "end is noexcept" ); | |
7c4979b2 JW |
182 | |
183 | std::error_code ec; | |
184 | remove_all(p, ec); | |
641cb5a6 JW |
185 | } |
186 | ||
187 | int | |
188 | main() | |
189 | { | |
190 | test01(); | |
191 | test02(); | |
192 | test03(); | |
193 | test04(); | |
194 | test05(); | |
195 | } |