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 directory_iterator
15
16// directory_iterator& operator=(directory_iterator const&);
17
18#include <experimental/filesystem>
19#include <type_traits>
20#include <set>
21#include <cassert>
22
23#include "test_macros.h"
24#include "rapid-cxx-test.hpp"
25#include "filesystem_test_helper.hpp"
26
27using namespace std::experimental::filesystem;
28
29TEST_SUITE(directory_iterator_copy_assign_tests)
30
31TEST_CASE(test_assignment_signature)
32{
33    using D = directory_iterator;
34    static_assert(std::is_copy_assignable<D>::value, "");
35}
36
37TEST_CASE(test_copy_to_end_iterator)
38{
39    const path testDir = StaticEnv::Dir;
40
41    const directory_iterator from(testDir);
42    TEST_REQUIRE(from != directory_iterator{});
43    const path entry = *from;
44
45    directory_iterator to{};
46    to = from;
47    TEST_REQUIRE(to == from);
48    TEST_CHECK(*to == entry);
49    TEST_CHECK(*from == entry);
50}
51
52
53TEST_CASE(test_copy_from_end_iterator)
54{
55    const path testDir = StaticEnv::Dir;
56
57    const directory_iterator from{};
58
59    directory_iterator to(testDir);
60    TEST_REQUIRE(to != directory_iterator{});
61
62    to = from;
63    TEST_REQUIRE(to == from);
64    TEST_CHECK(to == directory_iterator{});
65}
66
67TEST_CASE(test_copy_valid_iterator)
68{
69    const path testDir = StaticEnv::Dir;
70    const directory_iterator endIt{};
71
72    directory_iterator it_obj(testDir);
73    const directory_iterator& it = it_obj;
74    TEST_REQUIRE(it != endIt);
75    ++it_obj;
76    TEST_REQUIRE(it != endIt);
77    const path entry = *it;
78
79    directory_iterator it2(testDir);
80    TEST_REQUIRE(it2 != it);
81    const path entry2 = *it2;
82    TEST_CHECK(entry2 != entry);
83
84    it2 = it;
85    TEST_REQUIRE(it2 == it);
86    TEST_CHECK(*it2 == entry);
87}
88
89TEST_CASE(test_returns_reference_to_self)
90{
91    const directory_iterator it;
92    directory_iterator it2;
93    directory_iterator& ref = (it2 = it);
94    TEST_CHECK(&ref == &it2);
95}
96
97
98TEST_SUITE_END()
99