/****************************************************************************
 *
 *   Copyright (c) 2012, 2013 PX4 Development Team. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 * 3. Neither the name PX4 nor the names of its contributors may be
 *    used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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/**
 * @file test_conv.cpp
 * Tests conversions used across the system.
 *
 */

#include <nuttx/config.h>

#include <sys/types.h>

#include <stdio.h>
#include <poll.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>

#include "tests.h"

#include <math.h>
#include <float.h>

#include <systemlib/err.h>
#include <unit_test/unit_test.h>
#include <px4iofirmware/protocol.h>

int test_conv(int argc, char *argv[])
{
	warnx("Testing system conversions");

	for (int i = -10000; i <= 10000; i+=1) {
		float f = i/10000.0f;
		float fres = REG_TO_FLOAT(FLOAT_TO_REG(f));
		if (fabsf(f - fres) > 0.0001f) {
			warnx("conversion fail: input: %8.4f, intermediate: %d, result: %8.4f", (double)f, REG_TO_SIGNED(FLOAT_TO_REG(f)), (double)fres);
			return 1;
		}
	}

	warnx("All conversions clean");

	return 0;
}