Tiny testing framework for the browser - inspired by mocha

tinyTest.js

module.exports = {
	// Setup & Run
	describe:describe,
	then:then,
	run:run,
	// Assertion utils
	is:is,
	// DOM utils
	tap:tap,
	waitFor:waitFor
}

// Setup
var suites = {}
var setupStack = [suites]
function describe(name, fn) {
	var thunk = {}
	setupStack[0][name] = thunk
	setupStack.unshift(thunk)
	fn()
	setupStack.shift()
}
function then(testName, fn) {
	setupStack[0][testName] = fn
}

// Run
function now() { return new Date().getTime() }
function run(reporter) {
	var tests = []
	descend('', suites)
	function descend(base, thunk) {
		for (var name in thunk) {
			if (typeof thunk[name] == 'function') {
				tests.push({ name:base+' '+name, fn:thunk[name] })
			} else {
				descend(base + ' ' + name, thunk[name])
			}
		}
	}
	
	var totalStartTime = now()
	var currentTest
	runNextTest()
	function runNextTest() {
		if (!tests.length) { return reporter.onAllDone(now() - totalStartTime) }
		currentTest = tests.shift()
		reporter.onTestStart(currentTest.name)
		var startTime = now()
		currentTest.fn(function(err) {
			if (err) { return reporter.onTestFail(currentTest.name, err) }
			reporter.onTestDone(currentTest.name, now() - startTime)
			setTimeout(runNextTest, 0)
		})
	}
}

var isTouch
try { document.createEvent("TouchEvent"); isTouch = ('ontouchstart' in window) }
catch (e) { isTouch = false }

// Assertion utils
function is(a, b) {
	if (arguments.length == 1) { return !!a }
	else { return objectIdentical(a, b) }
}

// Dom utils
function tap(selector, callback) {
	waitFor(selector, function() {
		var events = isTouch ? [$.Event('touchstart'), $.Event('touchend')] : [$.Event('mousedown'), $.Event('mouseup'), $.Event('click')]
		var $el = $(selector)
		events.forEach(function($event) { $el.trigger($event) })
		callback && callback()
	})
}
function waitFor(selector, callback) {
	check()
	function check() {
		var $result = $(selector)
		if (!$result) { setTimeout(check, 50) }
		callback($result)
	}
}

// Misc
/*	Original script title: "Object.identical.js"; version 1.12
	Copyright (c) 2011, Chris O'Brien, prettycode.org
	http://github.com/prettycode/Object.identical.js

	Permission is hereby granted for unrestricted use, modification, and redistribution of this
	script, only under the condition that this code comment is kept wholly complete, appearing
	directly above the script's code body, in all original or modified non-minified representations
*/
function objectIdentical(a, b) {
	function sort(object) {
		if (typeof object !== "object" || object === null) { return object }
		var result = []
		Object.keys(object).sort().forEach(function(key) {
			result.push({ key:key, value:sort(object[key]) })
		})
		return result
	}
	return JSON.stringify(sort(a)) === JSON.stringify(sort(b))
}