compat/test/strnstr.c

   1 /*****************************************************************************
   2  * strnstr.c: Test for strnstr implementation API
   3  *****************************************************************************
   4  * Copyright © 2015 VideoLAN & VLC authors
   5  *
   6  * Authors: Hugo Beauzée-Luyssen <hugo@beauzee.fr>
   7  *
   8  * This program is free software; you can redistribute it and/or modify it
   9  * under the terms of the GNU Lesser General Public License as published by
  10  * the Free Software Foundation; either version 2.1 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  16  * GNU Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public License
  19  * along with this program; if not, write to the Free Software Foundation,
  20  * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  21  *****************************************************************************/
  22
  23 #include "config.h"
  24
  25 #include <stdbool.h>
  26 #undef NDEBUG
  27 #include <assert.h>
  28 #include <string.h>
  29
  30 const char* haystack = "Lorem ipsum dolor sit amet";
  31
  32 static void test( const char* haystack, const char* needle, size_t len, bool res )
  33 {
  34     if ( len == 0 )
  35         len = strlen( haystack );
  36     char* str = strnstr( haystack, needle, len );
  37     assert( res == ( str != NULL ) );
  38 }
  39
  40 int main(void)
  41 {
  42     test( haystack, "Lorem", 0, true );
  43     test( haystack, "Sea Otters", 0, false );
  44     test( haystack, "", 0, true );
  45     test( haystack, "Lorem ipsum dolor sit amet, but bigger", 0, false );
  46     test( haystack, haystack, 0, true );
  47     test( haystack, "amet", 0, true );
  48     test( haystack, "dolor", 5, false );
  49 }