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
10
11 // <filesystem>
12
13 // bool remove(const path& p);
14 // bool remove(const path& p, error_code& ec) noexcept;
15
16 #include "filesystem_include.h"
17
18 #include "test_macros.h"
19 #include "rapid-cxx-test.h"
20 #include "filesystem_test_helper.h"
21
22 using namespace fs;
23
24 TEST_SUITE(filesystem_remove_test_suite)
25
TEST_CASE(test_signatures)26 TEST_CASE(test_signatures)
27 {
28 const path p; ((void)p);
29 std::error_code ec; ((void)ec);
30 ASSERT_SAME_TYPE(decltype(fs::remove(p)), bool);
31 ASSERT_SAME_TYPE(decltype(fs::remove(p, ec)), bool);
32
33 ASSERT_NOT_NOEXCEPT(fs::remove(p));
34 ASSERT_NOEXCEPT(fs::remove(p, ec));
35 }
36
TEST_CASE(test_error_reporting)37 TEST_CASE(test_error_reporting)
38 {
39 auto checkThrow = [](path const& f, const std::error_code& ec)
40 {
41 #ifndef TEST_HAS_NO_EXCEPTIONS
42 try {
43 fs::remove(f);
44 return false;
45 } catch (filesystem_error const& err) {
46 return err.path1() == f
47 && err.path2() == ""
48 && err.code() == ec;
49 }
50 #else
51 ((void)f); ((void)ec);
52 return true;
53 #endif
54 };
55 scoped_test_env env;
56 const path non_empty_dir = env.create_dir("dir");
57 env.create_file(non_empty_dir / "file1", 42);
58 const path bad_perms_dir = env.create_dir("bad_dir");
59 const path file_in_bad_dir = env.create_file(bad_perms_dir / "file", 42);
60 permissions(bad_perms_dir, perms::none);
61 const path testCases[] = {
62 non_empty_dir,
63 #ifndef TEST_WIN_NO_FILESYSTEM_PERMS_NONE
64 // Windows doesn't support setting perms::none on a directory to
65 // stop it from being accessed. And a fictional file under
66 // GetWindowsInaccessibleDir() doesn't cause fs::remove() to report
67 // errors, it just returns false cleanly.
68 file_in_bad_dir,
69 #endif
70 };
71 for (auto& p : testCases) {
72 std::error_code ec;
73
74 TEST_CHECK(!fs::remove(p, ec));
75 TEST_CHECK(ec);
76 TEST_CHECK(checkThrow(p, ec));
77 }
78
79 // PR#35780
80 const path testCasesNonexistant[] = {
81 "",
82 env.make_env_path("dne")
83 };
84
85 for (auto& p : testCasesNonexistant) {
86 std::error_code ec;
87
88 TEST_CHECK(!fs::remove(p, ec));
89 TEST_CHECK(!ec);
90 }
91 }
92
TEST_CASE(basic_remove_test)93 TEST_CASE(basic_remove_test)
94 {
95 scoped_test_env env;
96 const path dne = env.make_env_path("dne");
97 const path link = env.create_symlink(dne, "link");
98 const path nested_link = env.make_env_path("nested_link");
99 create_symlink(link, nested_link);
100 const path testCases[] = {
101 env.create_file("file", 42),
102 env.create_dir("empty_dir"),
103 nested_link,
104 link
105 };
106 for (auto& p : testCases) {
107 std::error_code ec = std::make_error_code(std::errc::address_in_use);
108 TEST_CHECK(remove(p, ec));
109 TEST_CHECK(!ec);
110 TEST_CHECK(!exists(symlink_status(p)));
111 }
112 }
113
114 TEST_SUITE_END()
115