contrib/libjeffpc/test_padding.c

   1 /*
   2  * Copyright (c) 2016 Josef 'Jeff' Sipek <jeffpc@josefsipek.net>
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a copy
   5  * of this software and associated documentation files (the "Software"), to deal
   6  * in the Software without restriction, including without limitation the rights
   7  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   8  * copies of the Software, and to permit persons to whom the Software is
   9  * furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice shall be included in
  12  * all copies or substantial portions of the Software.
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  17  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  18  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  19  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  20  * SOFTWARE.
  21  */
  22
  23 #include <jeffpc/padding.h>
  24 #include <jeffpc/types.h>
  25
  26 #include "test.c"
  27
  28 struct run {
  29         const uint8_t *in;
  30         size_t inlen;
  31         uint8_t byte;
  32         bool success;
  33 };
  34
  35 #define TEST_ENTRY(i, b, s)                     \
  36         {                                       \
  37                 .in = (i),                      \
  38                 .inlen = sizeof(i),             \
  39                 .byte = (b),                    \
  40                 .success = (s),                 \
  41         }
  42
  43 static const uint8_t a4[] = { 'A', 'A', 'A', 'A' };
  44 static const uint8_t null4[] = { '\0', '\0', '\0', '\0' };
  45 static const uint8_t mid5[] = { 'A', 'A', 'X', 'A', 'A' };
  46 static const uint8_t end4[] = { 'A', 'A', 'A', 'X' };
  47
  48 static const struct run runs[] = {
  49         TEST_ENTRY(a4,          'A',  true),
  50         TEST_ENTRY(a4,          'X',  false),
  51         TEST_ENTRY(a4,          'a',  false),
  52         TEST_ENTRY(null4,       '\0', true),
  53         TEST_ENTRY(null4,       'X',  false),
  54         TEST_ENTRY(mid5,        'X',  false),
  55         TEST_ENTRY(mid5,        'A',  false),
  56         TEST_ENTRY(end4,        'A',  false),
  57         TEST_ENTRY(end4,        'X',  false),
  58 };
  59
  60 static void __test(int idx, const uint8_t *in, size_t inlen, uint8_t byte,
  61                    bool success)
  62 {
  63         fprintf(stderr, "%d: check_padding(%p, %#x, %zu)...", idx, in, byte,
  64                 inlen);
  65
  66         if (check_padding(in, byte, inlen) != success)
  67                 fail("%s when it shouldn't have",
  68                      success ? "failed" : "success");
  69
  70         fprintf(stderr, "%s...ok\n", success ? "true" : "false");
  71 }
  72
  73 void test(void)
  74 {
  75         int i;
  76
  77         for (i = 0; i < ARRAY_LEN(runs) ; i++)
  78                 __test(i, runs[i].in, runs[i].inlen, runs[i].byte,
  79                        runs[i].success);
  80 }