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 // <experimental/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 <experimental/filesystem>
18
19 #include "test_macros.h"
20 #include "rapid-cxx-test.hpp"
21 #include "filesystem_test_helper.hpp"
22
23 using namespace std::experimental::filesystem;
24 namespace fs = std::experimental::filesystem;
25
26 TEST_SUITE(filesystem_rename_test_suite)
27
TEST_CASE(test_signatures)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::rename(p, p)), void);
33 ASSERT_SAME_TYPE(decltype(fs::rename(p, p, ec)), void);
34
35 ASSERT_NOT_NOEXCEPT(fs::rename(p, p));
36 ASSERT_NOEXCEPT(fs::rename(p, p, ec));
37 }
38
TEST_CASE(test_error_reporting)39 TEST_CASE(test_error_reporting)
40 {
41 auto checkThrow = [](path const& f, path const& t, const std::error_code& ec)
42 {
43 #ifndef TEST_HAS_NO_EXCEPTIONS
44 try {
45 fs::rename(f, t);
46 return false;
47 } catch (filesystem_error const& err) {
48 return err.path1() == f
49 && err.path2() == t
50 && err.code() == ec;
51 }
52 #else
53 ((void)f); ((void)t); ((void)ec);
54 return true;
55 #endif
56 };
57 scoped_test_env env;
58 const path dne = env.make_env_path("dne");
59 const path file = env.create_file("file1", 42);
60 const path dir = env.create_dir("dir1");
61 struct TestCase {
62 path from;
63 path to;
64 } cases[] = {
65 {dne, dne},
66 {file, dir},
67 {dir, file}
68 };
69 for (auto& TC : cases) {
70 auto from_before = status(TC.from);
71 auto to_before = status(TC.to);
72 std::error_code ec;
73 rename(TC.from, TC.to, ec);
74 TEST_REQUIRE(ec);
75 TEST_CHECK(from_before.type() == status(TC.from).type());
76 TEST_CHECK(to_before.type() == status(TC.to).type());
77 TEST_CHECK(checkThrow(TC.from, TC.to, ec));
78 }
79 }
80
TEST_CASE(basic_rename_test)81 TEST_CASE(basic_rename_test)
82 {
83 scoped_test_env env;
84
85 const std::error_code set_ec = std::make_error_code(std::errc::address_in_use);
86 const path file = env.create_file("file1", 42);
87 { // same file
88 std::error_code ec = set_ec;
89 rename(file, file, ec);
90 TEST_CHECK(!ec);
91 TEST_CHECK(is_regular_file(file));
92 TEST_CHECK(file_size(file) == 42);
93 }
94 const path sym = env.create_symlink(file, "sym");
95 { // file -> symlink
96 std::error_code ec = set_ec;
97 rename(file, sym, ec);
98 TEST_CHECK(!ec);
99 TEST_CHECK(!exists(file));
100 TEST_CHECK(is_regular_file(symlink_status(sym)));
101 TEST_CHECK(file_size(sym) == 42);
102 }
103 const path file2 = env.create_file("file2", 42);
104 const path file3 = env.create_file("file3", 100);
105 { // file -> file
106 std::error_code ec = set_ec;
107 rename(file2, file3, ec);
108 TEST_CHECK(!ec);
109 TEST_CHECK(!exists(file2));
110 TEST_CHECK(is_regular_file(file3));
111 TEST_CHECK(file_size(file3) == 42);
112 }
113 const path dne = env.make_env_path("dne");
114 const path bad_sym = env.create_symlink(dne, "bad_sym");
115 const path bad_sym_dest = env.make_env_path("bad_sym2");
116 { // bad-symlink
117 std::error_code ec = set_ec;
118 rename(bad_sym, bad_sym_dest, ec);
119 TEST_CHECK(!ec);
120 TEST_CHECK(!exists(symlink_status(bad_sym)));
121 TEST_CHECK(is_symlink(bad_sym_dest));
122 TEST_CHECK(read_symlink(bad_sym_dest) == dne);
123 }
124 }
125
126 TEST_SUITE_END()
127