libbacktrace/stest.c

   1 /* stest.c -- Test for libbacktrace internal sort function
   2    Copyright (C) 2012-2024 Free Software Foundation, Inc.
   3    Written by Ian Lance Taylor, Google.
   4
   5 Redistribution and use in source and binary forms, with or without
   6 modification, are permitted provided that the following conditions are
   7 met:
   8
   9     (1) Redistributions of source code must retain the above copyright
  10     notice, this list of conditions and the following disclaimer.
  11
  12     (2) Redistributions in binary form must reproduce the above copyright
  13     notice, this list of conditions and the following disclaimer in
  14     the documentation and/or other materials provided with the
  15     distribution.
  16
  17     (3) The name of the author may not be used to
  18     endorse or promote products derived from this software without
  19     specific prior written permission.
  20
  21 THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  22 IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  23 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  24 DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
  25 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  26 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  27 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  29 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
  30 IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  31 POSSIBILITY OF SUCH DAMAGE.  */
  32
  33 #include "config.h"
  34
  35 #include <stdio.h>
  36 #include <stdlib.h>
  37 #include <string.h>
  38 #include <sys/types.h>
  39
  40 #include "backtrace.h"
  41 #include "internal.h"
  42
  43 /* Test the local qsort implementation.  */
  44
  45 #define MAX 10
  46
  47 struct test
  48 {
  49   size_t count;
  50   int input[MAX];
  51   int output[MAX];
  52 };
  53
  54 static struct test tests[] =
  55   {
  56     {
  57       10,
  58       { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 },
  59       { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 }
  60     },
  61     {
  62       9,
  63       { 1, 2, 3, 4, 5, 6, 7, 8, 9 },
  64       { 1, 2, 3, 4, 5, 6, 7, 8, 9 }
  65     },
  66     {
  67       10,
  68       { 10, 9, 8, 7, 6, 5, 4, 3, 2, 1 },
  69       { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 },
  70     },
  71     {
  72       9,
  73       { 9, 8, 7, 6, 5, 4, 3, 2, 1 },
  74       { 1, 2, 3, 4, 5, 6, 7, 8, 9 },
  75     },
  76     {
  77       10,
  78       { 2, 4, 6, 8, 10, 1, 3, 5, 7, 9 },
  79       { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 },
  80     },
  81     {
  82       5,
  83       { 4, 5, 3, 1, 2 },
  84       { 1, 2, 3, 4, 5 },
  85     },
  86     {
  87       5,
  88       { 1, 1, 1, 1, 1 },
  89       { 1, 1, 1, 1, 1 },
  90     },
  91     {
  92       5,
  93       { 1, 1, 2, 1, 1 },
  94       { 1, 1, 1, 1, 2 },
  95     },
  96     {
  97       5,
  98       { 2, 1, 1, 1, 1 },
  99       { 1, 1, 1, 1, 2 },
 100     },
 101   };
 102
 103 static int
 104 compare (const void *a, const void *b)
 105 {
 106   const int *ai = (const int *) a;
 107   const int *bi = (const int *) b;
 108
 109   return *ai - *bi;
 110 }
 111
 112 int
 113 main (int argc ATTRIBUTE_UNUSED, char **argv ATTRIBUTE_UNUSED)
 114 {
 115   int failures;
 116   size_t i;
 117   int a[MAX];
 118
 119   failures = 0;
 120   for (i = 0; i < sizeof tests / sizeof tests[0]; i++)
 121     {
 122       memcpy (a, tests[i].input, tests[i].count * sizeof (int));
 123       backtrace_qsort (a, tests[i].count, sizeof (int), compare);
 124       if (memcmp (a, tests[i].output, tests[i].count * sizeof (int)) != 0)
 125         {
 126           size_t j;
 127
 128           fprintf (stderr, "test %d failed:", (int) i);
 129           for (j = 0; j < tests[i].count; j++)
 130             fprintf (stderr, " %d", a[j]);
 131           fprintf (stderr, "\n");
 132           ++failures;
 133         }
 134     }
 135
 136   exit (failures > 0 ? EXIT_FAILURE : EXIT_SUCCESS);
 137 }