1 //===----------------------------------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 
9 // UNSUPPORTED: c++03
10 
11 // <filesystem>
12 
13 // class path
14 
15 // 8.4.9 path decomposition [path.decompose]
16 //------------------------------------------
17 // path root_name() const;
18 // path root_directory() const;
19 // path root_path() const;
20 // path relative_path() const;
21 // path parent_path() const;
22 // path filename() const;
23 // path stem() const;
24 // path extension() const;
25 //-------------------------------
26 // 8.4.10 path query [path.query]
27 //-------------------------------
28 // bool empty() const noexcept;
29 // bool has_root_path() const;
30 // bool has_root_name() const;
31 // bool has_root_directory() const;
32 // bool has_relative_path() const;
33 // bool has_parent_path() const;
34 // bool has_filename() const;
35 // bool has_stem() const;
36 // bool has_extension() const;
37 // bool is_absolute() const;
38 // bool is_relative() const;
39 //-------------------------------
40 // 8.5 path iterators [path.itr]
41 //-------------------------------
42 // iterator begin() const;
43 // iterator end() const;
44 
45 
46 #include "filesystem_include.h"
47 #include <algorithm>
48 #include <cassert>
49 #include <cstddef>
50 #include <iterator>
51 #include <type_traits>
52 #include <vector>
53 
54 #include "test_macros.h"
55 #include "test_iterators.h"
56 #include "count_new.h"
57 #include "filesystem_test_helper.h"
58 
59 struct ComparePathExact {
60   bool operator()(fs::path const& LHS, std::string const& RHS) const {
61     return LHS.string() == RHS;
62   }
63 };
64 
65 struct PathDecomposeTestcase
66 {
67     std::string raw;
68     std::vector<std::string> elements;
69     std::string root_path;
70     std::string root_name;
71     std::string root_directory;
72     std::string relative_path;
73     std::string parent_path;
74     std::string filename;
75 };
76 
77 const PathDecomposeTestcase PathTestCases[] =
78   {
79       {"", {}, "", "", "", "", "", ""}
80     , {".", {"."}, "", "", "", ".", "", "."}
81     , {"..", {".."}, "", "", "", "..", "", ".."}
82     , {"foo", {"foo"}, "", "", "", "foo", "", "foo"}
83     , {"/", {"/"}, "/", "", "/", "", "/", ""}
84     , {"/foo", {"/", "foo"}, "/", "", "/", "foo", "/", "foo"}
85     , {"foo/", {"foo", ""}, "", "", "", "foo/", "foo", ""}
86     , {"/foo/", {"/", "foo", ""}, "/", "", "/", "foo/", "/foo", ""}
87     , {"foo/bar", {"foo","bar"}, "",  "", "",  "foo/bar", "foo", "bar"}
88     , {"/foo//bar", {"/","foo","bar"}, "/", "", "/", "foo/bar", "/foo", "bar"}
89     , {"//net", {"/", "net"}, "/", "", "/", "net", "/", "net"}
90     , {"//net/foo", {"/", "net", "foo"}, "/", "", "/", "net/foo", "/net", "foo"}
91     , {"///foo///", {"/", "foo", ""}, "/", "", "/", "foo///", "///foo", ""}
92     , {"///foo///bar", {"/", "foo", "bar"}, "/", "", "/", "foo///bar", "///foo", "bar"}
93     , {"/.", {"/", "."}, "/", "", "/", ".", "/", "."}
94     , {"./", {".", ""}, "", "", "", "./", ".", ""}
95     , {"/..", {"/", ".."}, "/", "", "/", "..", "/", ".."}
96     , {"../", {"..", ""}, "", "", "", "../", "..", ""}
97     , {"foo/.", {"foo", "."}, "", "", "", "foo/.", "foo", "."}
98     , {"foo/..", {"foo", ".."}, "", "", "", "foo/..", "foo", ".."}
99     , {"foo/./", {"foo", ".", ""}, "", "", "", "foo/./", "foo/.", ""}
100     , {"foo/./bar", {"foo", ".", "bar"}, "", "", "", "foo/./bar", "foo/.", "bar"}
101     , {"foo/../", {"foo", "..", ""}, "", "", "", "foo/../", "foo/..", ""}
102     , {"foo/../bar", {"foo", "..", "bar"}, "", "", "", "foo/../bar", "foo/..", "bar"}
103     , {"c:", {"c:"}, "", "", "", "c:", "", "c:"}
104     , {"c:/", {"c:", ""}, "", "", "", "c:/", "c:", ""}
105     , {"c:foo", {"c:foo"}, "", "", "", "c:foo", "", "c:foo"}
106     , {"c:/foo", {"c:", "foo"}, "", "", "", "c:/foo", "c:", "foo"}
107     , {"c:foo/", {"c:foo", ""}, "", "", "", "c:foo/", "c:foo", ""}
108     , {"c:/foo/", {"c:", "foo", ""}, "", "", "", "c:/foo/",  "c:/foo", ""}
109     , {"c:/foo/bar", {"c:", "foo", "bar"}, "", "", "", "c:/foo/bar", "c:/foo", "bar"}
110     , {"prn:", {"prn:"}, "", "", "", "prn:", "", "prn:"}
111     , {"c:\\", {"c:\\"}, "", "", "", "c:\\", "", "c:\\"}
112     , {"c:\\foo", {"c:\\foo"}, "", "", "", "c:\\foo", "", "c:\\foo"}
113     , {"c:foo\\", {"c:foo\\"}, "", "", "", "c:foo\\", "", "c:foo\\"}
114     , {"c:\\foo\\", {"c:\\foo\\"}, "", "", "", "c:\\foo\\", "", "c:\\foo\\"}
115     , {"c:\\foo/",  {"c:\\foo", ""}, "", "", "", "c:\\foo/", "c:\\foo", ""}
116     , {"c:/foo\\bar", {"c:", "foo\\bar"}, "", "", "", "c:/foo\\bar", "c:", "foo\\bar"}
117     , {"//", {"/"}, "/", "", "/", "", "/", ""}
118   };
119 
120 void decompPathTest()
121 {
122   using namespace fs;
123   for (auto const & TC : PathTestCases) {
124     fs::path p(TC.raw);
125     assert(p == TC.raw);
126 
127     assert(p.root_path() == TC.root_path);
128     assert(p.has_root_path() != TC.root_path.empty());
129 
130     assert(p.root_name().native().empty());
131     assert(p.root_name() == TC.root_name);
132     assert(p.has_root_name() != TC.root_name.empty());
133 
134     assert(p.root_directory() == TC.root_directory);
135     assert(p.has_root_directory() != TC.root_directory.empty());
136 
137     assert(p.relative_path() == TC.relative_path);
138     assert(p.has_relative_path() != TC.relative_path.empty());
139 
140     assert(p.parent_path() == TC.parent_path);
141     assert(p.has_parent_path() != TC.parent_path.empty());
142 
143     assert(p.filename() == TC.filename);
144     assert(p.has_filename() != TC.filename.empty());
145 
146     assert(p.is_absolute() == p.has_root_directory());
147     assert(p.is_relative() != p.is_absolute());
148     if (p.empty())
149       assert(p.is_relative());
150 
151     assert(static_cast<std::size_t>(std::distance(p.begin(), p.end())) == TC.elements.size());
152     assert(std::equal(p.begin(), p.end(), TC.elements.begin(), ComparePathExact()));
153 
154     // check backwards
155     std::vector<fs::path> Parts;
156     for (auto it = p.end(); it != p.begin(); )
157       Parts.push_back(*--it);
158     assert(static_cast<std::size_t>(std::distance(Parts.begin(), Parts.end())) == TC.elements.size());
159     assert(std::equal(Parts.begin(), Parts.end(), TC.elements.rbegin(), ComparePathExact()));
160   }
161 }
162 
163 
164 struct FilenameDecompTestcase
165 {
166   std::string raw;
167   std::string filename;
168   std::string stem;
169   std::string extension;
170 };
171 
172 const FilenameDecompTestcase FilenameTestCases[] =
173 {
174     {"", "", "", ""}
175   , {".", ".", ".", ""}
176   , {"..", "..", "..", ""}
177   , {"/", "", "", ""}
178   , {"foo", "foo", "foo", ""}
179   , {"/foo/bar.txt", "bar.txt", "bar", ".txt"}
180   , {"foo..txt", "foo..txt", "foo.", ".txt"}
181   , {".profile", ".profile", ".profile", ""}
182   , {".profile.txt", ".profile.txt", ".profile", ".txt"}
183 };
184 
185 
186 void decompFilenameTest()
187 {
188   using namespace fs;
189   for (auto const & TC : FilenameTestCases) {
190     fs::path p(TC.raw);
191     assert(p == TC.raw);
192     ASSERT_NOEXCEPT(p.empty());
193 
194     assert(p.filename() == TC.filename);
195     assert(p.has_filename() != TC.filename.empty());
196 
197     assert(p.stem() == TC.stem);
198     assert(p.has_stem() != TC.stem.empty());
199 
200     assert(p.extension() == TC.extension);
201     assert(p.has_extension() != TC.extension.empty());
202   }
203 }
204 
205 int main(int, char**)
206 {
207   decompPathTest();
208   decompFilenameTest();
209 
210   return 0;
211 }
212