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 // XFAIL: LIBCXX-WINDOWS-FIXME
12 
13 // <filesystem>
14 
15 // bool remove(const path& p);
16 // bool remove(const path& p, error_code& ec) noexcept;
17 
18 #include "filesystem_include.h"
19 
20 #include "test_macros.h"
21 #include "rapid-cxx-test.h"
22 #include "filesystem_test_helper.h"
23 
24 using namespace fs;
25 
26 TEST_SUITE(filesystem_remove_test_suite)
27 
28 TEST_CASE(test_signatures)
29 {
30     const path p; ((void)p);
31     std::error_code ec; ((void)ec);
32     ASSERT_SAME_TYPE(decltype(fs::remove(p)), bool);
33     ASSERT_SAME_TYPE(decltype(fs::remove(p, ec)), bool);
34 
35     ASSERT_NOT_NOEXCEPT(fs::remove(p));
36     ASSERT_NOEXCEPT(fs::remove(p, ec));
37 }
38 
39 TEST_CASE(test_error_reporting)
40 {
41     auto checkThrow = [](path const& f, const std::error_code& ec)
42     {
43 #ifndef TEST_HAS_NO_EXCEPTIONS
44         try {
45             fs::remove(f);
46             return false;
47         } catch (filesystem_error const& err) {
48             return err.path1() == f
49                 && err.path2() == ""
50                 && err.code() == ec;
51         }
52 #else
53         ((void)f); ((void)ec);
54         return true;
55 #endif
56     };
57     scoped_test_env env;
58     const path non_empty_dir = env.create_dir("dir");
59     env.create_file(non_empty_dir / "file1", 42);
60     const path bad_perms_dir = env.create_dir("bad_dir");
61     const path file_in_bad_dir = env.create_file(bad_perms_dir / "file", 42);
62     permissions(bad_perms_dir, perms::none);
63     const path testCases[] = {
64         non_empty_dir,
65         file_in_bad_dir,
66     };
67     for (auto& p : testCases) {
68         std::error_code ec;
69 
70         TEST_CHECK(!fs::remove(p, ec));
71         TEST_CHECK(ec);
72         TEST_CHECK(checkThrow(p, ec));
73     }
74 
75     // PR#35780
76     const path testCasesNonexistant[] = {
77         "",
78         env.make_env_path("dne")
79     };
80 
81     for (auto& p : testCasesNonexistant) {
82         std::error_code ec;
83 
84         TEST_CHECK(!fs::remove(p, ec));
85         TEST_CHECK(!ec);
86     }
87 }
88 
89 TEST_CASE(basic_remove_test)
90 {
91     scoped_test_env env;
92     const path dne = env.make_env_path("dne");
93     const path link = env.create_symlink(dne, "link");
94     const path nested_link = env.make_env_path("nested_link");
95     create_symlink(link, nested_link);
96     const path testCases[] = {
97         env.create_file("file", 42),
98         env.create_dir("empty_dir"),
99         nested_link,
100         link
101     };
102     for (auto& p : testCases) {
103         std::error_code ec = std::make_error_code(std::errc::address_in_use);
104         TEST_CHECK(remove(p, ec));
105         TEST_CHECK(!ec);
106         TEST_CHECK(!exists(symlink_status(p)));
107     }
108 }
109 
110 TEST_SUITE_END()
111