libutil

// test_endian.c

// Endian unit test for libutil

// Copyright (C) 2021, Jakob Wakeling

// MIT Licence

#include "../endian.h"

#include "unit.h"

#include <stdint.h>

#include <stdio.h>

int main(void) {

	{

		ASSERT("G00T00 BSWAP16",

				BSWAP16(0xFF00u) == 0x00FFu);

		ASSERT("G00T02 BSWAP32",

				BSWAP32(0xFF00FF00u) == 0x00FF00FFu);

		ASSERT("G00T04 BSWAP64",

				BSWAP64(0xFF00FF00FF00FF00) == 0x00FF00FF00FF00FF);

	}

	{

		uint8_t a16[2] = { 0xFF, 0x00 };

		uint8_t a32[4] = { 0xFF, 0x00, 0x00, 0x00 };

		uint8_t a64[8] = { 0xFF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };

		ASSERT("G01T00 LD16LE",

				LD16LE(a16) == 0x00FFu);

		ASSERT("G01T01 LD16BE",

				LD16BE(a16) == 0xFF00u);

		ASSERT("G01T02 LD32LE",

				LD32LE(a32) == 0x000000FFu);

		ASSERT("G01T03 LD32BE",

				LD32BE(a32) == 0xFF000000u);

		ASSERT("G01T04 LD64LE",

				LD64LE(a64) == 0x00000000000000FFu);

		ASSERT("G01T05 LD64BE",

				LD64BE(a64) == 0xFF00000000000000u);

	}

	{

		uint16_t a16 = 0x00FFu; uint32_t a32 = 0x000000FFu;

		uint64_t a64 = 0x00000000000000FFu;

		uint8_t b16[2]; uint8_t b32[4]; uint8_t b64[8];

		ST16LE(b16, a16); ASSERT("G02T00 ST16LE",

				b16[0] == 0xFFu && b16[1] == 0x00u);

		ST16BE(b16, a16); ASSERT("G02T01 ST16BE",

				b16[0] == 0x00u && b16[1] == 0xFFu);

		ST32LE(b32, a32); ASSERT("G02T02 ST32LE",

				b32[0] == 0xFFu && b32[1] == 0x00u &&

				b32[2] == 0x00u && b32[3] == 0x00u);

		ST32BE(b32, a32); ASSERT("G02T03 ST32BE",

				b32[0] == 0x00u && b32[1] == 0x00u &&

				b32[2] == 0x00u && b32[3] == 0xFFu);

		ST64LE(b64, a64); ASSERT("G02T04 ST64LE",

				b64[0] == 0xFFu && b64[1] == 0x00u &&

				b64[2] == 0x00u && b64[3] == 0x00u &&

				b64[4] == 0x00u && b64[5] == 0x00u &&

				b64[6] == 0x00u && b64[7] == 0x00u);

		ST64BE(b64, a64); ASSERT("G02T05 ST64BE",

				b64[0] == 0x00u && b64[1] == 0x00u &&

				b64[2] == 0x00u && b64[3] == 0x00u &&

				b64[4] == 0x00u && b64[5] == 0x00u &&

				b64[6] == 0x00u && b64[7] == 0xFFu);

	}

	printf("%d of %d tests passed\n", testspassed, testsrun);

	return testsfailed;

}