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 // class directory_iterator
15 
16 // directory_iterator begin(directory_iterator iter) noexcept;
17 // directory_iterator end(directory_iterator iter) noexcept;
18 
19 #include "filesystem_include.hpp"
20 #include <type_traits>
21 #include <set>
22 #include <cassert>
23 
24 #include "test_macros.h"
25 #include "rapid-cxx-test.hpp"
26 #include "filesystem_test_helper.hpp"
27 #include <iostream>
28 
29 using namespace fs;
30 
31 TEST_SUITE(directory_iterator_begin_end_tests)
32 
TEST_CASE(test_function_signatures)33 TEST_CASE(test_function_signatures)
34 {
35     directory_iterator d; ((void)d);
36 
37     ASSERT_SAME_TYPE(decltype(begin(d)), directory_iterator);
38     ASSERT_NOEXCEPT(begin(std::move(d)));
39 
40     ASSERT_SAME_TYPE(decltype(end(d)), directory_iterator);
41     ASSERT_NOEXCEPT(end(std::move(d)));
42 }
43 
TEST_CASE(test_ranged_for_loop)44 TEST_CASE(test_ranged_for_loop)
45 {
46     const path testDir = StaticEnv::Dir;
47     std::set<path> dir_contents(std::begin(StaticEnv::DirIterationList),
48                                       std::end(  StaticEnv::DirIterationList));
49 
50     std::error_code ec;
51     directory_iterator it(testDir, ec);
52     TEST_REQUIRE(!ec);
53 
54     for (auto& elem : it) {
55         TEST_CHECK(dir_contents.erase(elem) == 1);
56     }
57     TEST_CHECK(dir_contents.empty());
58 }
59 
60 TEST_SUITE_END()
61