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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 // class path
     15 
     16 // 8.4.9 path decomposition [path.decompose]
     17 //------------------------------------------
     18 // path root_name() const;
     19 // path root_directory() const;
     20 // path root_path() const;
     21 // path relative_path() const;
     22 // path parent_path() const;
     23 // path filename() const;
     24 // path stem() const;
     25 // path extension() const;
     26 //-------------------------------
     27 // 8.4.10 path query [path.query]
     28 //-------------------------------
     29 // bool empty() const noexcept;
     30 // bool has_root_path() const;
     31 // bool has_root_name() const;
     32 // bool has_root_directory() const;
     33 // bool has_relative_path() const;
     34 // bool has_parent_path() const;
     35 // bool has_filename() const;
     36 // bool has_stem() const;
     37 // bool has_extension() const;
     38 // bool is_absolute() const;
     39 // bool is_relative() const;
     40 //-------------------------------
     41 // 8.5 path iterators [path.itr]
     42 //-------------------------------
     43 // iterator begin() const;
     44 // iterator end() const;
     45 
     46 
     47 #include <experimental/filesystem>
     48 #include <type_traits>
     49 #include <vector>
     50 #include <cassert>
     51 
     52 #include "test_macros.h"
     53 #include "test_iterators.h"
     54 #include "count_new.hpp"
     55 #include "filesystem_test_helper.hpp"
     56 
     57 namespace fs = std::experimental::filesystem;
     58 struct PathDecomposeTestcase
     59 {
     60     std::string raw;
     61     std::vector<std::string> elements;
     62     std::string root_path;
     63     std::string root_name;
     64     std::string root_directory;
     65     std::string relative_path;
     66     std::string parent_path;
     67     std::string filename;
     68 };
     69 
     70 const PathDecomposeTestcase PathTestCases[] =
     71   {
     72       {"", {}, "", "", "", "", "", ""}
     73     , {".", {"."}, "", "", "", ".", "", "."}
     74     , {"..", {".."}, "", "", "", "..", "", ".."}
     75     , {"foo", {"foo"}, "", "", "", "foo", "", "foo"}
     76     , {"/", {"/"}, "/", "", "/", "", "", "/"}
     77     , {"/foo", {"/", "foo"}, "/", "", "/", "foo", "/", "foo"}
     78     , {"foo/", {"foo", "."}, "", "", "", "foo/", "foo", "."}
     79     , {"/foo/", {"/", "foo", "."}, "/", "", "/", "foo/", "/foo", "."}
     80     , {"foo/bar", {"foo","bar"}, "",  "", "",  "foo/bar", "foo", "bar"}
     81     , {"/foo//bar", {"/","foo","bar"}, "/", "", "/", "foo/bar", "/foo", "bar"}
     82     , {"//net", {"//net"}, "//net", "//net", "", "", "", "//net"}
     83     , {"//net/foo", {"//net", "/", "foo"}, "//net/", "//net", "/", "foo", "//net/", "foo"}
     84     , {"///foo///", {"/", "foo", "."}, "/", "", "/", "foo///", "///foo", "."}
     85     , {"///foo///bar", {"/", "foo", "bar"}, "/", "", "/", "foo///bar", "///foo", "bar"}
     86     , {"/.", {"/", "."}, "/", "", "/", ".", "/", "."}
     87     , {"./", {".", "."}, "", "", "", "./", ".", "."}
     88     , {"/..", {"/", ".."}, "/", "", "/", "..", "/", ".."}
     89     , {"../", {"..", "."}, "", "", "", "../", "..", "."}
     90     , {"foo/.", {"foo", "."}, "", "", "", "foo/.", "foo", "."}
     91     , {"foo/..", {"foo", ".."}, "", "", "", "foo/..", "foo", ".."}
     92     , {"foo/./", {"foo", ".", "."}, "", "", "", "foo/./", "foo/.", "."}
     93     , {"foo/./bar", {"foo", ".", "bar"}, "", "", "", "foo/./bar", "foo/.", "bar"}
     94     , {"foo/../", {"foo", "..", "."}, "", "", "", "foo/../", "foo/..", "."}
     95     , {"foo/../bar", {"foo", "..", "bar"}, "", "", "", "foo/../bar", "foo/..", "bar"}
     96     , {"c:", {"c:"}, "", "", "", "c:", "", "c:"}
     97     , {"c:/", {"c:", "."}, "", "", "", "c:/", "c:", "."}
     98     , {"c:foo", {"c:foo"}, "", "", "", "c:foo", "", "c:foo"}
     99     , {"c:/foo", {"c:", "foo"}, "", "", "", "c:/foo", "c:", "foo"}
    100     , {"c:foo/", {"c:foo", "."}, "", "", "", "c:foo/", "c:foo", "."}
    101     , {"c:/foo/", {"c:", "foo", "."}, "", "", "", "c:/foo/",  "c:/foo", "."}
    102     , {"c:/foo/bar", {"c:", "foo", "bar"}, "", "", "", "c:/foo/bar", "c:/foo", "bar"}
    103     , {"prn:", {"prn:"}, "", "", "", "prn:", "", "prn:"}
    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     , {"//", {"//"}, "//", "//", "", "", "", "//"}
    111   };
    112 
    113 void decompPathTest()
    114 {
    115   using namespace fs;
    116   for (auto const & TC : PathTestCases) {
    117     path p(TC.raw);
    118     assert(p == TC.raw);
    119 
    120     assert(p.root_path() == TC.root_path);
    121     assert(p.has_root_path() !=  TC.root_path.empty());
    122 
    123     assert(p.root_name() == TC.root_name);
    124     assert(p.has_root_name() !=  TC.root_name.empty());
    125 
    126     assert(p.root_directory() == TC.root_directory);
    127     assert(p.has_root_directory() !=  TC.root_directory.empty());
    128 
    129     assert(p.relative_path() == TC.relative_path);
    130     assert(p.has_relative_path() !=  TC.relative_path.empty());
    131 
    132     assert(p.parent_path() == TC.parent_path);
    133     assert(p.has_parent_path() !=  TC.parent_path.empty());
    134 
    135     assert(p.filename() == TC.filename);
    136     assert(p.has_filename() !=  TC.filename.empty());
    137 
    138     assert(p.is_absolute() == p.has_root_directory());
    139     assert(p.is_relative() !=  p.is_absolute());
    140 
    141     assert(checkCollectionsEqual(p.begin(), p.end(),
    142                                  TC.elements.begin(), TC.elements.end()));
    143     // check backwards
    144 
    145     std::vector<fs::path> Parts;
    146     for (auto it = p.end(); it != p.begin(); )
    147       Parts.push_back(*--it);
    148     assert(checkCollectionsEqual(Parts.begin(), Parts.end(),
    149                                  TC.elements.rbegin(), TC.elements.rend()));
    150   }
    151 }
    152 
    153 
    154 struct FilenameDecompTestcase
    155 {
    156   std::string raw;
    157   std::string filename;
    158   std::string stem;
    159   std::string extension;
    160 };
    161 
    162 const FilenameDecompTestcase FilenameTestCases[] =
    163 {
    164     {"", "", "", ""}
    165   , {".", ".", ".", ""}
    166   , {"..", "..", "..", ""}
    167   , {"/", "/", "/", ""}
    168   , {"foo", "foo", "foo", ""}
    169   , {"/foo/bar.txt", "bar.txt", "bar", ".txt"}
    170   , {"foo..txt", "foo..txt", "foo.", ".txt"}
    171 };
    172 
    173 
    174 void decompFilenameTest()
    175 {
    176   using namespace fs;
    177   for (auto const & TC : FilenameTestCases) {
    178     path p(TC.raw);
    179     assert(p == TC.raw);
    180 
    181     assert(p.filename() == TC.filename);
    182     assert(p.has_filename() != TC.filename.empty());
    183 
    184     assert(p.stem() == TC.stem);
    185     assert(p.has_stem() != TC.stem.empty());
    186 
    187     assert(p.extension() == TC.extension);
    188     assert(p.has_extension() != TC.extension.empty());
    189   }
    190 }
    191 
    192 int main()
    193 {
    194   decompPathTest();
    195   decompFilenameTest();
    196 }
    197