Robot logic unit tests

RobotTests.js

<script>

console = {};
console.log = function(stuff) {
    if (typeof stuff == 'object')
        stuff = JSON.stringify(stuff);
    document.write(stuff + '<br>');
};


tests = [
  {
        me: {x:5, y:5, angle:0},
		them: {x:5, y:10},
		bearing: 180,
        turn: 180
	},
	{
        me: {x:5, y:5, angle:90},
		them: {x:5, y:10},
		bearing: 180,
        turn: 90
	},
	{
        me: {x:5, y:5, angle:315},
		them: {x:5, y:10},
		bearing: 180,
        turn: -135
	},
	{
        me: {x:5, y:5, angle:270},
		them: {x:5, y:10},
		bearing: 180,
        turn: -90
	},
	{
        me: {x:5, y:5, angle:45},
		them: {x:5, y:10},
		bearing: 180,
        turn: 135
	},
	{
        me: {x:5, y:5, angle:0},
		them: {x:10, y:5},
		bearing: 90,
        turn: 90
	},
	{
        me: {x:5, y:5, angle:90},
		them: {x:10, y:5},
		bearing: 90,
        turn: 0
	},
	{
        me: {x:5, y:5, angle:-90},
		them: {x:10, y:5},
		bearing: 90,
        turn: 180
	},
	{
        me: {x:5, y:5, angle:45},
		them: {x:10, y:5},
		bearing: 90,
        turn: 45
	},
	{
        me: {x:5, y:5, angle:-45},
		them: {x:10, y:5},
		bearing: 90,
        turn: 135
	},
	{
        me: {x:5, y:5, angle:180},
		them: {x:10, y:5},
		bearing: 90,
        turn: -90
	},
	{
        me: {x:5, y:5, angle:225},
		them: {x:10, y:5},
		bearing: 90,
        turn: -135
	},
	{
		me: {x:5, y:5},
		them: {x:0, y:5},
		bearing: 270
	},
	{
		me: {x:5, y:5},
		them: {x:5, y:0},
		bearing: 0
	},
	{
        me: {x:5, y:5, angle:0},
		them: {x:10, y:10},
		bearing: 135,
        turn: 45
	},
	{
		me: {x:5, y:5, angle:0},
		them: {x:0, y:10},
		bearing: 315,
		turn: -45
	},
	{
		me: {x:5, y:5},
		them: {x:0, y:0},
		bearing: 315
	},
	{
		me: {x:5, y:5},
		them: {x:10, y:0},
		bearing: 45
	}
];

Robot = function(position, angle) {
	this.position = position;
    this.angle = angle;
};
function calculateDistance (robot, theirLocation) { 
	var dX = theirLocation.x - robot.position.x; 
	var dY = theirLocation.y - robot.position.y;
	return Math.sqrt(dX*dX + dY*dY);
}
function calculateBearing (robot, theirLocation) {
	var dX = theirLocation.x - robot.position.x;
	var dY = theirLocation.y - robot.position.y;
	var distance = calculateDistance(robot, theirLocation);
	var absoluteAngle = Math.floor(Math.asin(Math.abs(dX)/distance) * 180/Math.PI);
  if (dX < 0 && dY >= 0) absoluteAngle = 180 + absoluteAngle;
  if (dX < 0 && dY < 0) absoluteAngle = 360 - absoluteAngle;   
  if (dX >= 0 && dY > 0) absoluteAngle = 180 - absoluteAngle;
  
    return absoluteAngle >= 360 ? 360 - absoluteAngle : absoluteAngle;
}
function calculateTurn (robot, bearingAngle) {
	var turn = bearingAngle - robot.angle;
	if (Math.abs(turn) > 180)
		turn = turn - 360

	return turn;
}

// in the real one, make calculateBearing a function in the prototype
console.log("Failed tests to follow...")
tests.forEach(function(item) {
    var calculatedBearing = calculateBearing({position:item.me}, item.them);
    
    //console.log(item.them);
	
    if (Math.abs(item.angle - calculatedBearing) > 1) {
        console.log(item.them);
		console.log('expected bearing: ' + item.bearing);
		console.log('returned bearing: ' + calculatedBearing);
	}
    
    if (item.me.angle) {
        var calculatedTurn = calculateTurn(item.me, calculatedBearing);

        if (Math.abs(item.turn - calculatedTurn) > 1) {
            console.log('bearing: ' + calculatedBearing + ' angle: ' + item.me.angle);
		    console.log('expected turn: ' + item.turn);
		    console.log('returned turn: ' + calculatedTurn);
        }
	}
});

</script>