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 // class filesystem_error 15 16 // filesystem_error(const string& what_arg, error_code ec); 17 // filesystem_error(const string& what_arg, const path& p1, error_code ec); 18 // filesystem_error(const string& what_arg, const path& p1, const path& p2, error_code ec); 19 // const std::error_code& code() const; 20 // const char* what() const noexcept; 21 // const path& path1() const noexcept; 22 // const path& path2() const noexcept; 23 24 #include <experimental/filesystem> 25 #include <type_traits> 26 #include <cassert> 27 28 #include "test_macros.h" 29 30 namespace fs = std::experimental::filesystem; 31 32 void test_constructors() { 33 using namespace fs; 34 35 // The string returned by "filesystem_error::what() must contain runtime_error::what() 36 const std::string what_arg = "Hello World"; 37 const std::string what_contains = std::runtime_error(what_arg).what(); 38 assert(what_contains.find(what_arg) != std::string::npos); 39 auto CheckWhat = [what_contains](filesystem_error const& e) { 40 std::string s = e.what(); 41 assert(s.find(what_contains) != std::string::npos); 42 }; 43 44 std::error_code ec = std::make_error_code(std::errc::file_exists); 45 const path p1("foo"); 46 const path p2("bar"); 47 48 // filesystem_error(const string& what_arg, error_code ec); 49 { 50 ASSERT_NOT_NOEXCEPT(filesystem_error(what_arg, ec)); 51 filesystem_error e(what_arg, ec); 52 CheckWhat(e); 53 assert(e.code() == ec); 54 assert(e.path1().empty() && e.path2().empty()); 55 } 56 // filesystem_error(const string& what_arg, const path&, error_code ec); 57 { 58 ASSERT_NOT_NOEXCEPT(filesystem_error(what_arg, p1, ec)); 59 filesystem_error e(what_arg, p1, ec); 60 CheckWhat(e); 61 assert(e.code() == ec); 62 assert(e.path1() == p1); 63 assert(e.path2().empty()); 64 } 65 // filesystem_error(const string& what_arg, const path&, const path&, error_code ec); 66 { 67 ASSERT_NOT_NOEXCEPT(filesystem_error(what_arg, p1, p2, ec)); 68 filesystem_error e(what_arg, p1, p2, ec); 69 CheckWhat(e); 70 assert(e.code() == ec); 71 assert(e.path1() == p1); 72 assert(e.path2() == p2); 73 } 74 } 75 76 void test_signatures() 77 { 78 using namespace fs; 79 const path p; 80 std::error_code ec; 81 const filesystem_error e("lala", ec); 82 // const path& path1() const noexcept; 83 { 84 ASSERT_SAME_TYPE(path const&, decltype(e.path1())); 85 ASSERT_NOEXCEPT(e.path1()); 86 } 87 // const path& path2() const noexcept 88 { 89 ASSERT_SAME_TYPE(path const&, decltype(e.path2())); 90 ASSERT_NOEXCEPT(e.path2()); 91 } 92 // const char* what() const noexcept 93 { 94 ASSERT_SAME_TYPE(const char*, decltype(e.what())); 95 ASSERT_NOEXCEPT(e.what()); 96 } 97 } 98 99 int main() { 100 static_assert(std::is_base_of<std::system_error, fs::filesystem_error>::value, ""); 101 test_constructors(); 102 test_signatures(); 103 } 104
