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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_block_file(file_status s) noexcept
     15 // bool is_block_file(path const& p);
     16 // bool is_block_file(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_block_file_test_suite)
     29 
     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_block_file(s));
     36     ASSERT_NOEXCEPT(is_block_file(p, ec));
     37     ASSERT_NOT_NOEXCEPT(is_block_file(p));
     38 }
     39 
     40 TEST_CASE(is_block_file_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, false},
     52         {file_type::block, true},
     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_block_file(s) == TC.expect);
     61     }
     62 }
     63 
     64 TEST_CASE(test_exist_not_found)
     65 {
     66     const path p = StaticEnv::DNE;
     67     TEST_CHECK(is_block_file(p) == false);
     68 }
     69 
     70 TEST_CASE(test_is_block_file_fails)
     71 {
     72     scoped_test_env env;
     73     const path dir = env.create_dir("dir");
     74     const path file = env.create_file("dir/file", 42);
     75     permissions(dir, perms::none);
     76 
     77     std::error_code ec;
     78     TEST_CHECK(is_block_file(file, ec) == false);
     79     TEST_CHECK(ec);
     80 
     81     TEST_CHECK_THROW(filesystem_error, is_block_file(file));
     82 }
     83 
     84 TEST_SUITE_END()
     85