#include "../src/math.c"

#include "../src/testing.h"


static void
test_mul_size(void) {
	test_start("mul_size()");

	size_t val;
	{
		testing("zero values");

		assert(mul_size(1U, 1U, &val) == 0);
		assert(val == 1U);

		test_ok();
	}
	{
		testing("small values");

		assert(mul_size(2U, 3U, &val) == 0);
		assert(val == 6U);

		assert(mul_size(10U, 10U, &val) == 0);
		assert(val == 100U);

		assert(mul_size(15U, 15U, &val) == 0);
		assert(val == 225U);

		test_ok();
	}
	{
		testing("big values");

		assert(mul_size(SIZE_MAX, 1U, &val) == 0);
		assert(val == SIZE_MAX);

		assert(mul_size(1U, SIZE_MAX, &val) == 0);
		assert(val == SIZE_MAX);

		assert(mul_size(SIZE_MAX / 2U, 2U, &val) == 0);
		assert(val == SIZE_MAX - 1U);

		test_ok();
	}
	{
		testing("overflowing values");

		val = 123U;

		assert(mul_size(SIZE_MAX, 2U, &val) != 0);
		assert(val == 123U);

		assert(mul_size(3U, SIZE_MAX / 2U, &val) != 0);
		assert(val == 123U);

		test_ok();
	}
}


int
main(void) {
	test_mul_size();
	return 0;
}