libs/filesystem/test/relative_test.cpp

   1 //  filesystem relative_test.cpp  ----------------------------------------------------  //
   2
   3 //  Copyright Beman Dawes 2015
   4
   5 //  Distributed under the Boost Software License, Version 1.0.
   6 //  See http://www.boost.org/LICENSE_1_0.txt
   7
   8 //  Library home page: http://www.boost.org/libs/filesystem
   9
  10 //  ----------------------------------------------------------------------------------  //
  11 //
  12 //  At least initially, development is easier if these tests are in a separate file.
  13 //
  14 //  ----------------------------------------------------------------------------------  //
  15
  16 #include <boost/config/warning_disable.hpp>
  17 #include <boost/filesystem/path.hpp>
  18 #include <boost/detail/lightweight_test_report.hpp>
  19 #include <iostream>
  20
  21 using boost::filesystem::path;
  22 using std::cout;
  23 using std::endl;
  24
  25 namespace
  26 {
  27   void lexically_relative_test()
  28   {
  29     cout << "lexically_relative_test..." << endl;
  30
  31     BOOST_TEST(path("").lexically_relative("") == "");
  32     BOOST_TEST(path("").lexically_relative("/foo") == "");
  33     BOOST_TEST(path("/foo").lexically_relative("") == "");
  34     BOOST_TEST(path("/foo").lexically_relative("/foo") == ".");
  35     BOOST_TEST(path("").lexically_relative("foo") == "");
  36     BOOST_TEST(path("foo").lexically_relative("") == "");
  37     BOOST_TEST(path("foo").lexically_relative("foo") == ".");
  38
  39     BOOST_TEST(path("a/b/c").lexically_relative("a") == "b/c");
  40     BOOST_TEST(path("a//b//c").lexically_relative("a") == "b/c");
  41     BOOST_TEST(path("a/b/c").lexically_relative("a/b") == "c");
  42     BOOST_TEST(path("a///b//c").lexically_relative("a//b") == "c");
  43     BOOST_TEST(path("a/b/c").lexically_relative("a/b/c") == ".");
  44     BOOST_TEST(path("a/b/c").lexically_relative("a/b/c/x") == "..");
  45     BOOST_TEST(path("a/b/c").lexically_relative("a/b/c/x/y") == "../..");
  46     BOOST_TEST(path("a/b/c").lexically_relative("a/x") == "../b/c");
  47     BOOST_TEST(path("a/b/c").lexically_relative("a/b/x") == "../c");
  48     BOOST_TEST(path("a/b/c").lexically_relative("a/x/y") == "../../b/c");
  49     BOOST_TEST(path("a/b/c").lexically_relative("a/b/x/y") == "../../c");
  50     BOOST_TEST(path("a/b/c").lexically_relative("a/b/c/x/y/z") == "../../..");
  51     BOOST_TEST(path("a/b/c").lexically_relative("a/") == "b/c");
  52     BOOST_TEST(path("a/b/c").lexically_relative("a/.") == "b/c");
  53     BOOST_TEST(path("a/b/c").lexically_relative("a/./") == "b/c");
  54     BOOST_TEST(path("a/b/c").lexically_relative("a/b/..") == "");
  55     BOOST_TEST(path("a/b/c").lexically_relative("a/b/../") == "");
  56     BOOST_TEST(path("a/b/c").lexically_relative("a/b/d/..") == "c");
  57     BOOST_TEST(path("a/b/c").lexically_relative("a/b/d/../") == "c");
  58
  59     // paths unrelated except first element, and first element is root directory
  60     BOOST_TEST(path("/a/b/c").lexically_relative("/x") == "../a/b/c");
  61     BOOST_TEST(path("/a/b/c").lexically_relative("/x/y") == "../../a/b/c");
  62     BOOST_TEST(path("/a/b/c").lexically_relative("/x/y/z") == "../../../a/b/c");
  63
  64     // paths unrelated
  65     BOOST_TEST(path("a/b/c").lexically_relative("x") == "");
  66     BOOST_TEST(path("a/b/c").lexically_relative("x/y") == "");
  67     BOOST_TEST(path("a/b/c").lexically_relative("x/y/z") == "");
  68     BOOST_TEST(path("a/b/c").lexically_relative("/x") == "");
  69     BOOST_TEST(path("a/b/c").lexically_relative("/x/y") == "");
  70     BOOST_TEST(path("a/b/c").lexically_relative("/x/y/z") == "");
  71     BOOST_TEST(path("a/b/c").lexically_relative("/a/b/c") == "");
  72
  73     // TODO: add some Windows-only test cases that probe presence or absence of
  74     // drive specifier-and root-directory
  75
  76     //  Some tests from Jamie Allsop's paper
  77     BOOST_TEST(path("/a/d").lexically_relative("/a/b/c") == "../../d");
  78     BOOST_TEST(path("/a/b/c").lexically_relative("/a/d") == "../b/c");
  79   #ifdef BOOST_WINDOWS_API
  80     BOOST_TEST(path("c:\\y").lexically_relative("c:\\x") == "../y");
  81   #else
  82     BOOST_TEST(path("c:\\y").lexically_relative("c:\\x") == "");
  83   #endif
  84     BOOST_TEST(path("d:\\y").lexically_relative("c:\\x") == "");
  85
  86     //  From issue #1976
  87     BOOST_TEST(path("/foo/new").lexically_relative("/foo/bar") == "../new");
  88   }
  89
  90   void lexically_proximate_test()
  91   {
  92     cout << "lexically_proximate_test..." << endl;
  93     // paths unrelated
  94     BOOST_TEST(path("a/b/c").lexically_proximate("x") == "a/b/c");
  95   }
  96 }  // unnamed namespace
  97
  98 //--------------------------------------------------------------------------------------//
  99 //                                                                                      //
 100 //                                     main                                             //
 101 //                                                                                      //
 102 //--------------------------------------------------------------------------------------//
 103
 104 int test_main(int, char*[])
 105 {
 106 // document state of critical macros
 107 #ifdef BOOST_POSIX_API
 108   cout << "BOOST_POSIX_API" << endl;
 109 #endif
 110 #ifdef BOOST_WINDOWS_API
 111   cout << "BOOST_WINDOWS_API" << endl;
 112 #endif
 113
 114   lexically_relative_test();
 115   lexically_proximate_test();
 116
 117   return ::boost::report_errors();
 118 }