t/packtestu.c

   1 /*
   2  * Copyright © 2015 Nick Bowler
   3  *
   4  * Test application to verify 16 and 32-bit unsigned unpacking functions.
   5  *
   6  * License WTFPL2: Do What The Fuck You Want To Public License, version 2.
   7  * This is free software: you are free to do what the fuck you want to.
   8  * There is NO WARRANTY, to the extent permitted by law.
   9  */
  10
  11 #include "pack.h"
  12 #include "tap.h"
  13
  14 static const unsigned char zero[8];
  15 static const unsigned char minus_one[8] = {
  16         0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
  17 };
  18
  19 static const unsigned char test_pattern[8] = {
  20         0xde, 0xad, 0xbe, 0xef, 0xf0, 0x0d, 0xca, 0xfe
  21 };
  22
  23 #define test(func, pattern, expected) do { \
  24         unsigned long result__ = (func)(pattern); \
  25         if (!tap_result(result__ == (expected), "%s(%s)", #func, #expected)) { \
  26                 tap_diag("  expected: %lu", (unsigned long)(expected)); \
  27                 tap_diag("  actual:   %lu", result__); \
  28         } \
  29 } while (0)
  30
  31 int main(void)
  32 {
  33         tap_plan(12);
  34
  35         test(unpack_16_be, zero,         0);
  36         test(unpack_16_be, minus_one,    0xffff);
  37         test(unpack_16_be, test_pattern, 0xdead);
  38         test(unpack_32_be, zero,         0);
  39         test(unpack_32_be, minus_one,    0xffffffff);
  40         test(unpack_32_be, test_pattern, 0xdeadbeef);
  41
  42         test(unpack_16_le, zero,         0);
  43         test(unpack_16_le, minus_one,    0xffff);
  44         test(unpack_16_le, test_pattern, 0xadde);
  45         test(unpack_32_le, zero,         0);
  46         test(unpack_32_le, minus_one,    0xffffffff);
  47         test(unpack_32_le, test_pattern, 0xefbeadde);
  48
  49         tap_done();
  50 }