ceph/src/boost/libs/core/test/sv_substr_test.cpp

   1 // Copyright 2021 Peter Dimov
   2 // Distributed under the Boost Software License, Version 1.0.
   3 // https://www.boost.org/LICENSE_1_0.txt
   4
   5 #include <boost/core/detail/string_view.hpp>
   6 #include <boost/core/lightweight_test.hpp>
   7 #include <stdexcept>
   8 #include <cstddef>
   9
  10 int main()
  11 {
  12     {
  13         boost::core::string_view sv;
  14
  15         {
  16             boost::core::string_view sv2 = sv.substr();
  17
  18             BOOST_TEST_EQ( sv2.data(), sv.data() );
  19             BOOST_TEST_EQ( sv2.size(), sv.size() );
  20         }
  21
  22         {
  23             boost::core::string_view sv2 = sv.substr( 0 );
  24
  25             BOOST_TEST_EQ( sv2.data(), sv.data() );
  26             BOOST_TEST_EQ( sv2.size(), sv.size() );
  27         }
  28
  29         BOOST_TEST_THROWS( sv.substr( 1 ), std::out_of_range );
  30         BOOST_TEST_THROWS( sv.substr( boost::core::string_view::npos ), std::out_of_range );
  31
  32         {
  33             boost::core::string_view sv2 = sv.substr( 0, 1 );
  34
  35             BOOST_TEST_EQ( sv2.data(), sv.data() );
  36             BOOST_TEST_EQ( sv2.size(), sv.size() );
  37         }
  38
  39         {
  40             boost::core::string_view sv2 = sv.substr( 0, 0 );
  41
  42             BOOST_TEST_EQ( sv2.data(), sv.data() );
  43             BOOST_TEST_EQ( sv2.size(), sv.size() );
  44         }
  45
  46         BOOST_TEST_THROWS( sv.substr( 1, 0 ), std::out_of_range );
  47         BOOST_TEST_THROWS( sv.substr( boost::core::string_view::npos, 0 ), std::out_of_range );
  48     }
  49
  50     {
  51         boost::core::string_view sv( "12345" );
  52
  53         {
  54             boost::core::string_view sv2 = sv.substr();
  55
  56             BOOST_TEST_EQ( sv2.data(), sv.data() );
  57             BOOST_TEST_EQ( sv2.size(), sv.size() );
  58         }
  59
  60         {
  61             boost::core::string_view sv2 = sv.substr( 0 );
  62
  63             BOOST_TEST_EQ( sv2.data(), sv.data() );
  64             BOOST_TEST_EQ( sv2.size(), sv.size() );
  65         }
  66
  67         {
  68             boost::core::string_view sv2 = sv.substr( 2 );
  69
  70             BOOST_TEST_EQ( sv2.data(), sv.data() + 2 );
  71             BOOST_TEST_EQ( sv2.size(), sv.size() - 2 );
  72         }
  73
  74         {
  75             boost::core::string_view sv2 = sv.substr( 5 );
  76
  77             BOOST_TEST_EQ( sv2.data(), sv.data() + 5 );
  78             BOOST_TEST_EQ( sv2.size(), sv.size() - 5 );
  79         }
  80
  81         BOOST_TEST_THROWS( sv.substr( 6 ), std::out_of_range );
  82         BOOST_TEST_THROWS( sv.substr( boost::core::string_view::npos ), std::out_of_range );
  83
  84         {
  85             boost::core::string_view sv2 = sv.substr( 0, 0 );
  86
  87             BOOST_TEST_EQ( sv2.data(), sv.data() );
  88             BOOST_TEST_EQ( sv2.size(), 0 );
  89         }
  90
  91         {
  92             boost::core::string_view sv2 = sv.substr( 2, 0 );
  93
  94             BOOST_TEST_EQ( sv2.data(), sv.data() + 2 );
  95             BOOST_TEST_EQ( sv2.size(), 0 );
  96         }
  97
  98         {
  99             boost::core::string_view sv2 = sv.substr( 5, 0 );
 100
 101             BOOST_TEST_EQ( sv2.data(), sv.data() + 5 );
 102             BOOST_TEST_EQ( sv2.size(), 0 );
 103         }
 104
 105         BOOST_TEST_THROWS( sv.substr( 6, 0 ), std::out_of_range );
 106         BOOST_TEST_THROWS( sv.substr( boost::core::string_view::npos, 0 ), std::out_of_range );
 107
 108         {
 109             boost::core::string_view sv2 = sv.substr( 0, 3 );
 110
 111             BOOST_TEST_EQ( sv2.data(), sv.data() );
 112             BOOST_TEST_EQ( sv2.size(), 3 );
 113         }
 114
 115         {
 116             boost::core::string_view sv2 = sv.substr( 2, 3 );
 117
 118             BOOST_TEST_EQ( sv2.data(), sv.data() + 2 );
 119             BOOST_TEST_EQ( sv2.size(), 3 );
 120         }
 121
 122         {
 123             boost::core::string_view sv2 = sv.substr( 4, 3 );
 124
 125             BOOST_TEST_EQ( sv2.data(), sv.data() + 4 );
 126             BOOST_TEST_EQ( sv2.size(), 1 );
 127         }
 128
 129         {
 130             boost::core::string_view sv2 = sv.substr( 5, 3 );
 131
 132             BOOST_TEST_EQ( sv2.data(), sv.data() + 5 );
 133             BOOST_TEST_EQ( sv2.size(), 0 );
 134         }
 135
 136         BOOST_TEST_THROWS( sv.substr( 6, 3 ), std::out_of_range );
 137         BOOST_TEST_THROWS( sv.substr( boost::core::string_view::npos, 3 ), std::out_of_range );
 138
 139         {
 140             boost::core::string_view sv2 = sv.substr( 0, 5 );
 141
 142             BOOST_TEST_EQ( sv2.data(), sv.data() );
 143             BOOST_TEST_EQ( sv2.size(), 5 );
 144         }
 145
 146         {
 147             boost::core::string_view sv2 = sv.substr( 2, 5 );
 148
 149             BOOST_TEST_EQ( sv2.data(), sv.data() + 2 );
 150             BOOST_TEST_EQ( sv2.size(), 3 );
 151         }
 152
 153         {
 154             boost::core::string_view sv2 = sv.substr( 4, 5 );
 155
 156             BOOST_TEST_EQ( sv2.data(), sv.data() + 4 );
 157             BOOST_TEST_EQ( sv2.size(), 1 );
 158         }
 159
 160         {
 161             boost::core::string_view sv2 = sv.substr( 5, 5 );
 162
 163             BOOST_TEST_EQ( sv2.data(), sv.data() + 5 );
 164             BOOST_TEST_EQ( sv2.size(), 0 );
 165         }
 166
 167         BOOST_TEST_THROWS( sv.substr( 6, 5 ), std::out_of_range );
 168         BOOST_TEST_THROWS( sv.substr( boost::core::string_view::npos, 5 ), std::out_of_range );
 169
 170         {
 171             boost::core::string_view sv2 = sv.substr( 0, 8 );
 172
 173             BOOST_TEST_EQ( sv2.data(), sv.data() );
 174             BOOST_TEST_EQ( sv2.size(), 5 );
 175         }
 176
 177         {
 178             boost::core::string_view sv2 = sv.substr( 2, 8 );
 179
 180             BOOST_TEST_EQ( sv2.data(), sv.data() + 2 );
 181             BOOST_TEST_EQ( sv2.size(), 3 );
 182         }
 183
 184         {
 185             boost::core::string_view sv2 = sv.substr( 4, 8 );
 186
 187             BOOST_TEST_EQ( sv2.data(), sv.data() + 4 );
 188             BOOST_TEST_EQ( sv2.size(), 1 );
 189         }
 190
 191         {
 192             boost::core::string_view sv2 = sv.substr( 5, 8 );
 193
 194             BOOST_TEST_EQ( sv2.data(), sv.data() + 5 );
 195             BOOST_TEST_EQ( sv2.size(), 0 );
 196         }
 197
 198         BOOST_TEST_THROWS( sv.substr( 6, 8 ), std::out_of_range );
 199         BOOST_TEST_THROWS( sv.substr( boost::core::string_view::npos, 8 ), std::out_of_range );
 200     }
 201
 202     return boost::report_errors();
 203 }