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 copy_symlink(const path& existing_symlink, const path& new_symlink);
15 // void copy_symlink(const path& existing_symlink, const path& new_symlink,
16 // error_code& ec) noexcept;
17
18 #include "filesystem_include.hpp"
19 #include <type_traits>
20 #include <cassert>
21
22 #include "test_macros.h"
23 #include "rapid-cxx-test.hpp"
24 #include "filesystem_test_helper.hpp"
25
26 using namespace fs;
27
28 TEST_SUITE(filesystem_copy_symlink_test_suite)
29
TEST_CASE(test_signatures)30 TEST_CASE(test_signatures)
31 {
32 const path p; ((void)p);
33 std::error_code ec; ((void)ec);
34 ASSERT_NOT_NOEXCEPT(fs::copy_symlink(p, p));
35 ASSERT_NOEXCEPT(fs::copy_symlink(p, p, ec));
36 }
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::copy_symlink(f, t);
46 return true;
47 } catch (filesystem_error const& err) {
48 return err.path1() == f
49 && err.code() == ec;
50 }
51 #else
52 ((void)f); ((void)t); ((void)ec);
53 return true;
54 #endif
55 };
56
57 scoped_test_env env;
58 const path file = env.create_file("file1", 42);
59 const path file2 = env.create_file("file2", 55);
60 const path sym = env.create_symlink(file, "sym");
61 const path dir = env.create_dir("dir");
62 const path dne = env.make_env_path("dne");
63 { // from is a file, not a symlink
64 std::error_code ec;
65 fs::copy_symlink(file, dne, ec);
66 TEST_REQUIRE(ec);
67 TEST_CHECK(checkThrow(file, dne, ec));
68 }
69 { // from is a file, not a symlink
70 std::error_code ec;
71 fs::copy_symlink(dir, dne, ec);
72 TEST_REQUIRE(ec);
73 TEST_CHECK(checkThrow(dir, dne, ec));
74 }
75 { // destination exists
76 std::error_code ec;
77 fs::copy_symlink(sym, file2, ec);
78 TEST_REQUIRE(ec);
79 }
80 }
81
TEST_CASE(copy_symlink_basic)82 TEST_CASE(copy_symlink_basic)
83 {
84 scoped_test_env env;
85 const path dir = env.create_dir("dir");
86 const path dir_sym = env.create_symlink(dir, "dir_sym");
87 const path file = env.create_file("file", 42);
88 const path file_sym = env.create_symlink(file, "file_sym");
89 { // test for directory symlinks
90 const path dest = env.make_env_path("dest1");
91 std::error_code ec;
92 fs::copy_symlink(dir_sym, dest, ec);
93 TEST_REQUIRE(!ec);
94 TEST_CHECK(is_symlink(dest));
95 TEST_CHECK(equivalent(dest, dir));
96 }
97 { // test for file symlinks
98 const path dest = env.make_env_path("dest2");
99 std::error_code ec;
100 fs::copy_symlink(file_sym, dest, ec);
101 TEST_REQUIRE(!ec);
102 TEST_CHECK(is_symlink(dest));
103 TEST_CHECK(equivalent(dest, file));
104 }
105 }
106
107
108 TEST_SUITE_END()
109