A Simple OOP-Type Object and Mocha Test

card.js

var Card = function (suit, rank) {
	function constructor () { }
	constructor.prototype.getSuit = function () {
		return suit;
	};
	constructor.prototype.setSuit = function (s) {
		suit = s;
	};
	constructor.prototype.getRank = function () {
		return rank;
	};
	constructor.prototype.setRank = function (r) {
		rank = r;
	};
	return new constructor();
};

exports.Card = Card;

cardtest.js

var expect = require('chai').expect,
	Card = require('../card.js').Card;

describe('Card:', function () {
	'use strict';
	var card;
	beforeEach(function () {
		card = new Card('Diamonds', 8);
	});
	describe('Constructor:', function () {
		it('Should be truthy', function () {
			expect(card).to.be.a('object');
		});
		it('Should have a settable suit', function () {
			card.setSuit('Hearts');
			expect(card.getSuit()).to.equal('Hearts');
		});
		it('Should have a settable rank', function () {
			card.setRank('9');
			expect(card.getRank()).to.equal('9');
		});
		it('Should be immutable', function () {
			card.suit = 'Hearts';
			expect(card.getSuit()).to.equal('Diamonds');
		});
	});
});

stdout.txt

Running "simplemocha:all" (simplemocha) task
1..4
ok 1 Card: Constructor: Should be truthy
ok 2 Card: Constructor: Should have a settable suit
ok 3 Card: Constructor: Should have a settable rank
ok 4 Card: Constructor: Should be immutable
# tests 4
# pass 4
# fail 0

Running "jshint:myFiles" (jshint) task
>> 2 files lint free.

Done, without errors.