1 //===----------------------------------------------------------------------===//
2 //
3 // The LLVM Compiler Infrastructure
4 //
5 // This file is dual licensed under the MIT and the University of Illinois Open
6 // Source Licenses. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9
10 // UNSUPPORTED: c++98, c++03
11
12 // <filesystem>
13
14 // uintmax_t remove_all(const path& p);
15 // uintmax_t remove_all(const path& p, error_code& ec) noexcept;
16
17 #include "filesystem_include.hpp"
18
19 #include "test_macros.h"
20 #include "rapid-cxx-test.hpp"
21 #include "filesystem_test_helper.hpp"
22
23 using namespace fs;
24
25 TEST_SUITE(filesystem_remove_all_test_suite)
26
TEST_CASE(test_signatures)27 TEST_CASE(test_signatures)
28 {
29 const path p; ((void)p);
30 std::error_code ec; ((void)ec);
31 ASSERT_SAME_TYPE(decltype(fs::remove_all(p)), std::uintmax_t);
32 ASSERT_SAME_TYPE(decltype(fs::remove_all(p, ec)), std::uintmax_t);
33
34 ASSERT_NOT_NOEXCEPT(fs::remove_all(p));
35 ASSERT_NOT_NOEXCEPT(fs::remove_all(p, ec));
36 }
37
TEST_CASE(test_error_reporting)38 TEST_CASE(test_error_reporting)
39 {
40 auto checkThrow = [](path const& f, const std::error_code& ec)
41 {
42 #ifndef TEST_HAS_NO_EXCEPTIONS
43 try {
44 fs::remove_all(f);
45 return false;
46 } catch (filesystem_error const& err) {
47 return err.path1() == f
48 && err.path2() == ""
49 && err.code() == ec;
50 }
51 #else
52 ((void)f); ((void)ec);
53 return true;
54 #endif
55 };
56 scoped_test_env env;
57 const path non_empty_dir = env.create_dir("dir");
58 env.create_file(non_empty_dir / "file1", 42);
59 const path bad_perms_dir = env.create_dir("bad_dir");
60 const path file_in_bad_dir = env.create_file(bad_perms_dir / "file", 42);
61 permissions(bad_perms_dir, perms::none);
62 const path bad_perms_file = env.create_file("file2", 42);
63 permissions(bad_perms_file, perms::none);
64
65 const path testCases[] = {
66 file_in_bad_dir
67 };
68 const auto BadRet = static_cast<std::uintmax_t>(-1);
69 for (auto& p : testCases) {
70 std::error_code ec;
71
72 TEST_CHECK(fs::remove_all(p, ec) == BadRet);
73 TEST_CHECK(ec);
74 TEST_CHECK(checkThrow(p, ec));
75 }
76
77 // PR#35780
78 const path testCasesNonexistant[] = {
79 "",
80 env.make_env_path("dne")
81 };
82 for (auto &p : testCasesNonexistant) {
83 std::error_code ec;
84
85 TEST_CHECK(fs::remove_all(p, ec) == 0);
86 TEST_CHECK(!ec);
87 }
88 }
89
TEST_CASE(basic_remove_all_test)90 TEST_CASE(basic_remove_all_test)
91 {
92 scoped_test_env env;
93 const path dne = env.make_env_path("dne");
94 const path link = env.create_symlink(dne, "link");
95 const path nested_link = env.make_env_path("nested_link");
96 create_symlink(link, nested_link);
97 const path testCases[] = {
98 env.create_file("file", 42),
99 env.create_dir("empty_dir"),
100 nested_link,
101 link
102 };
103 for (auto& p : testCases) {
104 std::error_code ec = std::make_error_code(std::errc::address_in_use);
105 TEST_CHECK(remove(p, ec));
106 TEST_CHECK(!ec);
107 TEST_CHECK(!exists(symlink_status(p)));
108 }
109 }
110
TEST_CASE(symlink_to_dir)111 TEST_CASE(symlink_to_dir)
112 {
113 scoped_test_env env;
114 const path dir = env.create_dir("dir");
115 const path file = env.create_file(dir / "file", 42);
116 const path link = env.create_symlink(dir, "sym");
117
118 {
119 std::error_code ec = std::make_error_code(std::errc::address_in_use);
120 TEST_CHECK(remove_all(link, ec) == 1);
121 TEST_CHECK(!ec);
122 TEST_CHECK(!exists(symlink_status(link)));
123 TEST_CHECK(exists(dir));
124 TEST_CHECK(exists(file));
125 }
126 }
127
128
TEST_CASE(nested_dir)129 TEST_CASE(nested_dir)
130 {
131 scoped_test_env env;
132 const path dir = env.create_dir("dir");
133 const path dir1 = env.create_dir(dir / "dir1");
134 const path out_of_dir_file = env.create_file("file1", 42);
135 const path all_files[] = {
136 dir, dir1,
137 env.create_file(dir / "file1", 42),
138 env.create_symlink(out_of_dir_file, dir / "sym1"),
139 env.create_file(dir1 / "file2", 42),
140 env.create_symlink(dir, dir1 / "sym2")
141 };
142 const std::size_t expected_count = sizeof(all_files) / sizeof(all_files[0]);
143
144 std::error_code ec = std::make_error_code(std::errc::address_in_use);
145 TEST_CHECK(remove_all(dir, ec) == expected_count);
146 TEST_CHECK(!ec);
147 for (auto const& p : all_files) {
148 TEST_CHECK(!exists(symlink_status(p)));
149 }
150 TEST_CHECK(exists(out_of_dir_file));
151 }
152
153 TEST_SUITE_END()
154