LCOV - code coverage report
Current view: top level - src/libavutil/tests - random_seed.c (source / functions) Hit Total Coverage
Test: coverage.info Lines: 12 15 80.0 %
Date: 2017-01-22 02:20:28 Functions: 1 1 100.0 %

          Line data    Source code
       1             : /*
       2             :  * Copyright (c) 2009 Baptiste Coudurier <baptiste.coudurier@gmail.com>
       3             :  *
       4             :  * This file is part of FFmpeg.
       5             :  *
       6             :  * FFmpeg is free software; you can redistribute it and/or
       7             :  * modify it under the terms of the GNU Lesser General Public
       8             :  * License as published by the Free Software Foundation; either
       9             :  * version 2.1 of the License, or (at your option) any later version.
      10             :  *
      11             :  * FFmpeg 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 GNU
      14             :  * Lesser General Public License for more details.
      15             :  *
      16             :  * You should have received a copy of the GNU Lesser General Public
      17             :  * License along with FFmpeg; if not, write to the Free Software
      18             :  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
      19             :  */
      20             : 
      21             : #define TEST 1
      22             : #include "libavutil/random_seed.c"
      23             : 
      24             : #undef printf
      25             : #define N 256
      26             : #define F 2
      27             : #include <stdio.h>
      28             : 
      29             : typedef uint32_t (*random_seed_ptr_t)(void);
      30             : 
      31           1 : int main(void)
      32             : {
      33             :     int i, j, rsf, retry;
      34             :     uint32_t seeds[N];
      35           1 :     random_seed_ptr_t random_seed[F] = {av_get_random_seed, get_generic_seed};
      36             : 
      37           3 :     for (rsf=0; rsf<F; ++rsf){
      38           2 :         for (retry=0; retry<3; retry++){
      39         514 :             for (i=0; i<N; i++){
      40         512 :                 seeds[i] = random_seed[rsf]();
      41       65792 :                 for (j=0; j<i; j++)
      42       65280 :                     if (seeds[j] == seeds[i])
      43           0 :                         goto retry;
      44             :             }
      45           2 :             printf("seeds OK\n");
      46           2 :             break;
      47             :             retry:;
      48             :         }
      49           2 :         if (retry >= 3) {
      50           0 :             printf("rsf %d: FAIL at %d with %X\n", rsf, j, seeds[j]);
      51           0 :             return 1;
      52             :         }
      53             :     }
      54           1 :     return 0;
      55             : }

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