path: root/src/systemcmds/tests/test_conv.cpp

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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;
}