QueueTest.js~

var assert = require("assert");

var q = require("./Queue");

describe("Queue", function(){

    describe("#size()",function(){

	it("size should change as values are enqueued and dequeued", function(){

	    var q = require("./Queue");

	    assert.equal(q.size(),0);

	    q.enqueue(1);

	    assert.equal(q.size(),1);

	    q.enqueue(4);

	    assert.equal(q.size(),2);

	    q.dequeue();

	    assert.equal(q.size(),1);

	    q.clear();

	});

     });

    describe("#dequeue()", function(){

	it("The queue should maintain the FIFO principal", function(){

	    q.enqueue(1);

	    q.enqueue(2);

	    q.enqueue(3);

	    assert.equal(q.dequeue(), 1);

	    assert.equal(q.dequeue(), 2);

	    q.enqueue(4);

	    assert.equal(q.dequeue(), 3);

	});

    });

});