Simple test utility for javascript

gistfile1.js

/**
 * Simple JS test script
 * @return
 */
function kickTest() {
	testLog("This is tester JS");
	
	new Test('TEST CASE 1', function(){
		testLog("This is TEST CASE1");
	}).run();
	
	new Test('TEST CASE 2').run();
	
	new TestSuite('SUITE for my self')
		.add(new Test('TEST CASE 1 OF SUITE', function() {
			testLog("Suite1!!");
		}))
		.add(new Test('TEST CASE 2 OF SUITE', function() {
			testLog("Suite2!!");
			this.assert(true, true);
		}))
		.add(new Test('TEST CASE 3 OF SUITE', function() {
			testLog("Suite2!!");
			this.assert(false, false);
		}))
		.add(new Test('TEST CASE 4 OF SUITE', function() {
			testLog("Suite2!!");
			this.assert(true, false);
		}))
	.run();

	new TestSuite('SUITE for my self2')
		.add(new Test('TEST CASE 1 OF SUITE', function() {
			testLog("Suite2-1!!");
		}))
		.add(new Test('TEST CASE 2 OF SUITE', function() {
			testLog("Suite2-2!!");
			this.assert(true, true);
		}))
	.run();
}

// Test utility >>>

/*
 * Show test log to another window
 */
(function() {
	var _out = null;
	
	testLog = function(msg, className) {
		className = (className || 'normal');
		
		if (!_out) _out = createNewWindow();
		try {
			_out.write('<span class=' + className + '>' + msg + '</span><br>');
		}
		catch(e) {
			_out = createNewWindow();
			_out.write(msg + '<br>');
		}
	}
	
	function createNewWindow() {
		var result = window.open().document;
		result.write([
			'<style type="text/css">' ,
			'span.success { color: green; font-weight: bold; }', 
			'span.fail { color: red; font-weight: bold; }',
			'span.normal { color: gray; }',
			'</style>'
		].join(' '));
		return result;
	}
})();

/**
 * Simple Test case class
 * @param name
 * @param testImpl
 * @return
 */
function Test(name, testImpl) {
	testLog('create test :' + name);
	this.name = name;
	this.state = Test.STATE.NOT_RUNNING;
	this.impl = (testImpl || function(){this.state = Test.STATE.FAIL});
}

Test.STATE = {
	NOT_RUNNNING:	-1,
	SUCCESS: 		1,
	FAIL:			0
}

Test.prototype = {
	run : function() {
		testLog('run test :' + this.name);
		
		this.impl();
		
		if(this.state != Test.STATE.FAIL) {
			this.state = Test.STATE.SUCCESS;
			testLog(this.name + ' : SUCCESS.', 'success');
		}
		else {
			testLog(this.name + ' : FAIL', 'fail');
		}
	},

	assert : function(expected, actual) {
		if (expected != actual) { 
			this.state = Test.STATE.FAIL;
		}
	}
}

/**
	Simple test suite
 */
function TestSuite(name) {
	testLog("<hr/>");
	testLog("<h1>Create suite [" + name + "].</h1>");
	
	this.name = (name || 'no name');
	this.tests = [];
}

TestSuite.prototype = {
	add: function(testObj) {
		this.tests.push(testObj);
		return this;
	},
	
	run: function() {
		testLog("<h2>Start test suite [" + this.name + "].</h2>");
		
		for(var i = 0; i < this.tests.length; i++) {
			
			if (this.tests[i]) this.tests[i].run();
		}
		
		if (this.suiteAllCleared()) {
			testLog("<h1>Test suite [" + this.name + "] all SUCCEEDED.</h1>", 'success');
		}
		else {
			testLog("<h1>Test suite [" + this.name + "] some FAILED!!</h1>", 'fail');
		}
		
		testLog("<hr/>");
	},
	
	suiteAllCleared: function() {
		for (var i = 0; i < this.tests.length; i++) {
			if (this.tests[i].state != Test.STATE.SUCCESS) {
				return false;
			}
		}
		return true;
	}
}