encode2-test.c

#include "fadec-enc2.h"
#include <inttypes.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

static void print_hex(const uint8_t* buf, size_t len) {
  for (size_t i = 0; i < len; i++)
    printf("%02x", buf[i]);
}

static int check(const uint8_t* buf, const void* exp, size_t exp_len,
                 unsigned res, const char* name) {
  if (res == exp_len && !memcmp(buf, exp, exp_len))
    return 0;
  printf("Failed case (new) %s:\n", name);
  printf("  Exp (%2zu): ", exp_len);
  print_hex((const uint8_t*)exp, exp_len);
  printf("\n  Got (%2u): ", res);
  print_hex(buf, res);
  printf("\n");
  return -1;
}

#define TEST1(str, exp, name, ...)                                             \
  do {                                                                         \
    memset(buf, 0, sizeof buf);                                                \
    unsigned res = fe64_##name(buf, __VA_ARGS__);                              \
    failed |= check(buf, exp, sizeof(exp) - 1, res, str);                      \
  } while (0);
#define TEST(exp, ...) TEST1(#__VA_ARGS__, exp, __VA_ARGS__)

int main(void) {
  int failed = 0;
  uint8_t buf[16];

  // This API is type safe and prohibits compilation of reg-type mismatches
#define ENC_TEST_TYPESAFE
  // Silence -Warray-bounds with double cast
#define FE_PTR(off) (const void*)((uintptr_t)buf + (off))
#define FLAGMASK(flags, mask) flags, mask
#include "encode-test.inc"

  TEST("\x90", NOP, 0)
  TEST("\x90", NOP, 1)
  TEST("\x66\x90", NOP, 2)
  TEST("\x0f\x1f\x00", NOP, 3)
  TEST("\x0f\x1f\x40\x00", NOP, 4)
  TEST("\x0f\x1f\x44\x00\x00", NOP, 5)
  TEST("\x66\x0f\x1f\x44\x00\x00", NOP, 6)
  TEST("\x0f\x1f\x80\x00\x00\x00\x00", NOP, 7)
  TEST("\x0f\x1f\x84\x00\x00\x00\x00\x00", NOP, 8)
  TEST("\x66\x0f\x1f\x84\x00\x00\x00\x00\x00", NOP, 9)
  TEST("\x66\x0f\x1f\x84\x00\x00\x00\x00\x00\x90", NOP, 10)
  TEST("\x66\x0f\x1f\x84\x00\x00\x00\x00\x00\x66\x90", NOP, 11)
  TEST("\x66\x0f\x1f\x84\x00\x00\x00\x00\x00\x0f\x1f\x00", NOP, 12)

  puts(failed ? "Some tests FAILED" : "All tests PASSED");
  return failed ? EXIT_FAILURE : EXIT_SUCCESS;
}