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 // void rename(const path& old_p, const path& new_p);
15 // void rename(const path& old_p, const path& new_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_rename_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::rename(p, p)), void);
32 ASSERT_SAME_TYPE(decltype(fs::rename(p, p, ec)), void);
33
34 ASSERT_NOT_NOEXCEPT(fs::rename(p, p));
35 ASSERT_NOEXCEPT(fs::rename(p, p, ec));
36 }
37
TEST_CASE(test_error_reporting)38 TEST_CASE(test_error_reporting)
39 {
40 auto checkThrow = [](path const& f, path const& t, const std::error_code& ec)
41 {
42 #ifndef TEST_HAS_NO_EXCEPTIONS
43 try {
44 fs::rename(f, t);
45 return false;
46 } catch (filesystem_error const& err) {
47 return err.path1() == f
48 && err.path2() == t
49 && err.code() == ec;
50 }
51 #else
52 ((void)f); ((void)t); ((void)ec);
53 return true;
54 #endif
55 };
56 scoped_test_env env;
57 const path dne = env.make_env_path("dne");
58 const path file = env.create_file("file1", 42);
59 const path dir = env.create_dir("dir1");
60 struct TestCase {
61 path from;
62 path to;
63 } cases[] = {
64 {dne, dne},
65 {file, dir},
66 {dir, file}
67 };
68 for (auto& TC : cases) {
69 auto from_before = status(TC.from);
70 auto to_before = status(TC.to);
71 std::error_code ec;
72 rename(TC.from, TC.to, ec);
73 TEST_REQUIRE(ec);
74 TEST_CHECK(from_before.type() == status(TC.from).type());
75 TEST_CHECK(to_before.type() == status(TC.to).type());
76 TEST_CHECK(checkThrow(TC.from, TC.to, ec));
77 }
78 }
79
TEST_CASE(basic_rename_test)80 TEST_CASE(basic_rename_test)
81 {
82 scoped_test_env env;
83
84 const std::error_code set_ec = std::make_error_code(std::errc::address_in_use);
85 const path file = env.create_file("file1", 42);
86 { // same file
87 std::error_code ec = set_ec;
88 rename(file, file, ec);
89 TEST_CHECK(!ec);
90 TEST_CHECK(is_regular_file(file));
91 TEST_CHECK(file_size(file) == 42);
92 }
93 const path sym = env.create_symlink(file, "sym");
94 { // file -> symlink
95 std::error_code ec = set_ec;
96 rename(file, sym, ec);
97 TEST_CHECK(!ec);
98 TEST_CHECK(!exists(file));
99 TEST_CHECK(is_regular_file(symlink_status(sym)));
100 TEST_CHECK(file_size(sym) == 42);
101 }
102 const path file2 = env.create_file("file2", 42);
103 const path file3 = env.create_file("file3", 100);
104 { // file -> file
105 std::error_code ec = set_ec;
106 rename(file2, file3, ec);
107 TEST_CHECK(!ec);
108 TEST_CHECK(!exists(file2));
109 TEST_CHECK(is_regular_file(file3));
110 TEST_CHECK(file_size(file3) == 42);
111 }
112 const path dne = env.make_env_path("dne");
113 const path bad_sym = env.create_symlink(dne, "bad_sym");
114 const path bad_sym_dest = env.make_env_path("bad_sym2");
115 { // bad-symlink
116 std::error_code ec = set_ec;
117 rename(bad_sym, bad_sym_dest, ec);
118 TEST_CHECK(!ec);
119 TEST_CHECK(!exists(symlink_status(bad_sym)));
120 TEST_CHECK(is_symlink(bad_sym_dest));
121 TEST_CHECK(read_symlink(bad_sym_dest) == dne);
122 }
123 }
124
125 TEST_SUITE_END()
126