Line data    Source code

       1              : // Copyright (c) 2018-2025  Made to Order Software Corp.  All Rights Reserved
       2              : //
       3              : // https://snapwebsites.org/project/snapdev
       4              : // contact@m2osw.com
       5              : //
       6              : // This program is free software: you can redistribute it and/or modify
       7              : // it under the terms of the GNU General Public License as published by
       8              : // the Free Software Foundation, either version 3 of the License, or
       9              : // (at your option) any later version.
      10              : //
      11              : // This program is distributed in the hope that it will be useful,
      12              : // but WITHOUT ANY WARRANTY; without even the implied warranty of
      13              : // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      14              : // GNU General Public License for more details.
      15              : //
      16              : // You should have received a copy of the GNU General Public License
      17              : // along with this program.  If not, see <https://www.gnu.org/licenses/>.
      18              : 
      19              : /** \file
      20              :  * \brief Verify that the memsearch() function works.
      21              :  *
      22              :  * This file implements tests for the memsearch() function.
      23              :  */
      24              : 
      25              : // self
      26              : //
      27              : #include    <snapdev/memsearch.h>
      28              : 
      29              : #include    "catch_main.h"
      30              : 
      31              : 
      32              : // last include
      33              : //
      34              : #include    <snapdev/poison.h>
      35              : 
      36              : 
      37              : 
      38              : 
      39            1 : CATCH_TEST_CASE("memsearch", "[memory]")
      40              : {
      41            1 :     CATCH_START_SECTION("memsearch: verify memory search")
      42              :     {
      43            1 :         char const haystack[] = {
      44              :             0x00, 0x30, 0x18, 0x29, static_cast<char>(0xFF), 0x45, 0x71, static_cast<char>(0xAC),
      45              :             0x10, 0x41, 0x58, 0x33, static_cast<char>(0xEF), static_cast<char>(0xD5), 0x6F, 0x39,
      46              :         };
      47              : 
      48            1 :         char const needle1[] = { 0x18, 0x29, static_cast<char>(0xFF) };
      49            1 :         int pos(snapdev::memsearch(haystack, sizeof(haystack), needle1, sizeof(needle1)));
      50            1 :         CATCH_REQUIRE(pos == 2);
      51            1 :         pos = snapdev::memsearch(needle1, sizeof(needle1), haystack, sizeof(haystack));
      52            1 :         CATCH_REQUIRE(pos == -1);
      53              : 
      54            1 :         char const needle2[] = { 0x11, 0x29, static_cast<char>(0xFF) };
      55            1 :         pos = snapdev::memsearch(haystack, sizeof(haystack), needle2, sizeof(needle2));
      56            1 :         CATCH_REQUIRE(pos == -1);
      57            1 :         pos = snapdev::memsearch(needle2, sizeof(needle2), haystack, sizeof(haystack));
      58            1 :         CATCH_REQUIRE(pos == -1);
      59              : 
      60            1 :         char const needle3[] = { static_cast<char>(0xD5), 0x6F, 0x39 };
      61            1 :         pos = snapdev::memsearch(haystack, sizeof(haystack), needle3, sizeof(needle3));
      62            1 :         CATCH_REQUIRE(pos == 13);
      63            1 :         pos = snapdev::memsearch(needle3, sizeof(needle3), haystack, sizeof(haystack));
      64            1 :         CATCH_REQUIRE(pos == -1);
      65              : 
      66            1 :         pos = snapdev::memsearch(haystack, sizeof(haystack), haystack, sizeof(haystack));
      67            1 :         CATCH_REQUIRE(pos == 0);
      68              :     }
      69            1 :     CATCH_END_SECTION()
      70            1 : }
      71              : 
      72              : 
      73              : 
      74              : // vim: ts=4 sw=4 et