Arduino/libraries/ArduinoTestSuite/examples/ATS_Delay/ATS_Delay.ino

//************************************************************************
//*	Arduino Test Suite
//*	ATS_ToneTest
//*	
//*	Copyright (c) 2010 Mark Sproul  All right reserved.
//*	 
//*	This library is free software; you can redistribute it and/or
//*	modify it under the terms of the GNU Lesser General Public
//*	License as published by the Free Software Foundation; either
//*	version 2.1 of the License, or (at your option) any later version.
//*	
//*	This library is distributed in the hope that it will be useful,
//*	but WITHOUT ANY WARRANTY; without even the implied warranty of
//*	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
//*	Lesser General Public License for more details.
//*	
//*	You should have received a copy of the GNU Lesser General Public
//*	License along with this library; if not, write to the Free Software
//*	Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
//************************************************************************
//*	Aug 31,	2010	<MLS> Started on TestArduino
//*	Oct 28,	2010	<MLS> Started on Delay
//************************************************************************





#include	"HardwareSerial.h"


#include	<ArduinoTestSuite.h>




//************************************************************************
void setup()
{
short			ii;
short			testNum;
int				startMemoryUsage;
unsigned long	startMillis;
unsigned long	endMillis;
unsigned long	deltaMillis;
unsigned long	errMillis;
boolean			passed;
char			testNameString[80];


	startMemoryUsage	=	ATS_GetFreeMemory();

	ATS_begin("Arduino", "DelayTest");
	
	testNum	=	1;
	//*	we start at 2 because 0/1 are RXD/TXD
	for (ii=0; ii<1000; ii+= 15)
	{
		startMillis	=	millis();
		
		delay(ii);

		endMillis	=	millis();
		
		deltaMillis	=	endMillis - startMillis;
		
		if (deltaMillis >= ii)
		{
			errMillis	=	deltaMillis - ii;
		}
		else
		{
			errMillis	=	ii - deltaMillis;
		}
		
		if (errMillis <= 1)
		{
			passed	=	true;
		}
		else
		{
			passed	=	false;
		}
		sprintf(testNameString, "DelayTest.%02d (delay= %4d actual delay=%ld err=%ld)", testNum, ii, deltaMillis, errMillis);

		ATS_PrintTestStatus(testNameString, passed);


		testNum++;
	}




	ATS_ReportMemoryUsage(startMemoryUsage);

	ATS_end();

}


//************************************************************************
void loop()
{


}