function test(condition, message){
    if (!condition) {
        throw new Error(message);
    }
}

function log(message){
    console.log("LOG: " + message);
}

Test.prototype = {
    addTestContainer: function(key){
        var row = document.createElement('div');
        var container = document.createElement('div');
        var testMessage = document.createElement('p');
        
        container.id = key;
        
        document.body.appendChild(testMessage);
        row.appendChild(container);
        document.body.appendChild(row);
        
        return {
            testMessage: testMessage
        };
    },
    run: function(){
        var tests = this.tests;
        
        for (var key in tests) {
            if (!this.testOnly || (this.testOnly && this.testOnly == key)) {
                var obj = this.addTestContainer(key);
                this.counter++;
                console.log(this.counter + ") " + key);
                tests[key](key);
                obj.testMessage.innerHTML = this.counter + ") " + key + ': PASSED';
                obj.testMessage.setAttribute("class", "green");
            }
        }
    }
};