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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 // bool is_symlink(file_status s) noexcept
15 // bool is_symlink(path const& p);
16 // bool is_symlink(path const& p, std::error_code& ec) noexcept;
17 
18 #include <experimental/filesystem>
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 std::experimental::filesystem;
27 
28 TEST_SUITE(is_symlink_test_suite)
29 
TEST_CASE(signature_test)30 TEST_CASE(signature_test)
31 {
32     file_status s; ((void)s);
33     const path p; ((void)p);
34     std::error_code ec; ((void)ec);
35     ASSERT_NOEXCEPT(is_symlink(s));
36     ASSERT_NOEXCEPT(is_symlink(p, ec));
37     ASSERT_NOT_NOEXCEPT(is_symlink(p));
38 }
39 
TEST_CASE(is_symlink_status_test)40 TEST_CASE(is_symlink_status_test)
41 {
42     struct TestCase {
43         file_type type;
44         bool expect;
45     };
46     const TestCase testCases[] = {
47         {file_type::none, false},
48         {file_type::not_found, false},
49         {file_type::regular, false},
50         {file_type::directory, false},
51         {file_type::symlink, true},
52         {file_type::block, false},
53         {file_type::character, false},
54         {file_type::fifo, false},
55         {file_type::socket, false},
56         {file_type::unknown, false}
57     };
58     for (auto& TC : testCases) {
59         file_status s(TC.type);
60         TEST_CHECK(is_symlink(s) == TC.expect);
61     }
62 }
63 
TEST_CASE(static_env_test)64 TEST_CASE(static_env_test)
65 {
66     struct TestCase {
67         path p;
68         bool expect;
69     };
70     const TestCase testCases[] = {
71         {StaticEnv::File, false},
72         {StaticEnv::Dir, false},
73         {StaticEnv::SymlinkToFile, true},
74         {StaticEnv::SymlinkToDir, true},
75         {StaticEnv::BadSymlink, true}
76     };
77     for (auto& TC : testCases) {
78         TEST_CHECK(is_symlink(TC.p) == TC.expect);
79     }
80 }
81 
TEST_CASE(test_exist_not_found)82 TEST_CASE(test_exist_not_found)
83 {
84     const path p = StaticEnv::DNE;
85     TEST_CHECK(is_symlink(p) == false);
86     std::error_code ec;
87     TEST_CHECK(is_symlink(p, ec) == false);
88     TEST_CHECK(ec);
89 }
90 
TEST_CASE(test_is_symlink_fails)91 TEST_CASE(test_is_symlink_fails)
92 {
93     scoped_test_env env;
94     const path dir = env.create_dir("dir");
95     const path file = env.create_file("dir/file", 42);
96     permissions(dir, perms::none);
97 
98     std::error_code ec;
99     TEST_CHECK(is_symlink(file, ec) == false);
100     TEST_CHECK(ec);
101 
102     TEST_CHECK_THROW(filesystem_error, is_symlink(file));
103 }
104 
105 TEST_SUITE_END()
106