Alloy treeview performance test

alloy_treeview_perf_test.js

var A = AUI();
var Lang = A.Lang;
var now = Lang.now;

var number_of_levels = 10;

var ts = now();
create_children = function(amount, level) {
	amount = amount || 10;
	if (level <= 3) {
		return A.Array.map(new Array(amount).join('x').split('x'), function(n, i, c) {
			var node = { label: 'test'+i };

			if(level < 3 && (i % 4 === 0)){
				node.children = create_children(amount, level + 1);
				node.leaf = false;
				node.expanded = true;
			}

			return node;
		});
	}
};

var objSize = function(arr) {
	var size = arr.length;

	A.each(
		arr,
		function(item, index, collection) {
			if (item.children) {
				size += objSize(item.children);
			}
		}
	);

	return size;
};

var cache = 1;

var children = cache && !Lang.isUndefined(children) ? children : create_children(number_of_levels, 0);

var times = !Lang.isUndefined(times) ? times : [];

if (times.length === 0) {
	console.log('Number of children nodes: %d', objSize(children));
}

var start = now();

	new A.TreeView({
		label: 'ROOT',
		id: 'root10',
		expanded: true,
		children: children
	}).render();

var end = now();
var time = end - start;
times.push(time);

console.log('Current time: %d, all times: %a', time, times);

var timesLength = times.length;

if (timesLength === 3) {
	var avg = A.Array.reduce(
		times,
		0,
		function(prevVal, curVal, index, collection) {
			return prevVal + curVal;
		}
	);

	avg /= timesLength;

	times.length = 0;

	console.log('Average times across %d runs: %d ', timesLength, avg);
}