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 exists(file_status s) noexcept
15 // bool exists(path const& p);
16 // bool exists(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(exists_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(exists(s));
36 ASSERT_NOEXCEPT(exists(p, ec));
37 ASSERT_NOT_NOEXCEPT(exists(p));
38 }
39
TEST_CASE(exists_status_test)40 TEST_CASE(exists_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, true},
50 {file_type::directory, true},
51 {file_type::symlink, true},
52 {file_type::block, true},
53 {file_type::character, true},
54 {file_type::fifo, true},
55 {file_type::socket, true},
56 {file_type::unknown, true}
57 };
58 for (auto& TC : testCases) {
59 file_status s(TC.type);
60 TEST_CHECK(exists(s) == TC.expect);
61 }
62 }
63
TEST_CASE(test_exist_not_found)64 TEST_CASE(test_exist_not_found)
65 {
66 const path p = StaticEnv::DNE;
67 TEST_CHECK(exists(p) == false);
68
69 std::error_code ec = GetTestEC();
70 TEST_CHECK(exists(p, ec) == false);
71 TEST_CHECK(!ec);
72 }
73
TEST_CASE(test_exists_fails)74 TEST_CASE(test_exists_fails)
75 {
76 scoped_test_env env;
77 const path dir = env.create_dir("dir");
78 const path file = env.create_file("dir/file", 42);
79 permissions(dir, perms::none);
80
81 std::error_code ec;
82 TEST_CHECK(exists(file, ec) == false);
83 TEST_CHECK(ec);
84
85 TEST_CHECK_THROW(filesystem_error, exists(file));
86 }
87
TEST_CASE(test_name_too_long)88 TEST_CASE(test_name_too_long) {
89 std::string long_name(2500, 'a');
90 const path file(long_name);
91
92 std::error_code ec;
93 TEST_CHECK(exists(file, ec) == false);
94 TEST_CHECK(ec);
95 }
96
97 TEST_SUITE_END()
98