#include "greatest.h"
#include "../nibble.h"

TEST bcd_zeros_is_zero() {
  bcd x = bcd_zeros();

  for (int i = 0; i < 10; i++) ASSERT_EQ_FMT(0, x.internal[i], "%d");
  PASS();
}

TEST bcd_zeros_length_zero() {
  bcd x = bcd_zeros();

  ASSERT_EQ_FMT(0, bcd_digits(x), "%d");
  PASS();
}

TEST bcd_8_length_3() {
  bcd x = bcd_from_8(((uint8_t)0)-1);

  ASSERT_EQ_FMT(3, bcd_digits(x), "%d");
  PASS();
}

TEST bcd_16_length_5() {
  bcd x = bcd_from_16(((uint16_t)0)-1);

  ASSERT_EQ_FMT(5, bcd_digits(x), "%d");
  PASS();
}

TEST bcd_32_length_10() {
  bcd x = bcd_from_32(((uint32_t)0)-1);

  ASSERT_EQ_FMT(10, bcd_digits(x), "%d");
  PASS();
}

TEST bcd_64_length_20() {
  bcd x = bcd_from_64(((uint64_t)0)-1);

  ASSERT_EQ_FMT(20, bcd_digits(x), "%d");
  PASS();
}

TEST bcd_8_and_back() {
  bcd x = bcd_from_8(((uint8_t)0)-1);

  ASSERT_EQ_FMT(255llu, bcd_to_64(x), "%llu");
  PASS();
}

TEST bcd_16_and_back() {
  bcd x = bcd_from_16(((uint16_t)0)-1);

  ASSERT_EQ_FMT(65535llu, bcd_to_64(x), "%llu");
  PASS();
}

TEST bcd_32_and_back() {
  bcd x = bcd_from_32(((uint32_t)0)-1);

  ASSERT_EQ_FMT(4294967295llu, bcd_to_64(x), "%llu");
  PASS();
}

TEST bcd_64_and_back() {
  bcd x = bcd_from_64(((uint64_t)0)-1);

  ASSERT_EQ_FMT(18446744073709551615llu, bcd_to_64(x), "%llu");
  PASS();
}

TEST bcd_string() {
  bcd x = bcd_from_64(((uint64_t)0)-1);

  ASSERT_STR_EQ("18446744073709551615", bcd_to_string(x));
  PASS();
}

SUITE(tests) {
    RUN_TEST(bcd_zeros_is_zero);
    RUN_TEST(bcd_zeros_length_zero);
    RUN_TEST(bcd_8_length_3);
    RUN_TEST(bcd_16_length_5);
    RUN_TEST(bcd_32_length_10);
    RUN_TEST(bcd_64_length_20);
    RUN_TEST(bcd_8_and_back);
    RUN_TEST(bcd_16_and_back);
    RUN_TEST(bcd_32_and_back);
    RUN_TEST(bcd_64_and_back);
    RUN_TEST(bcd_string);
}

GREATEST_MAIN_DEFS();

int main(int argc, char **argv) {
    GREATEST_MAIN_BEGIN();

    RUN_SUITE(tests);

    GREATEST_MAIN_END();
}