describe("The constructor is supposed a proper Captcha object", function() {
    it('Constructor Captcha exists', function(){
        expect(Captcha).toBeDefined();
    });
    var captcha = new Captcha();
    it("Captcha object is not null", function(){
       expect(captcha).not.toBeNull();
    });
    it('captcha object should be an instance of Captcha class', function(){
        expect(captcha instanceof Captcha).toBeTruthy();
    });
});

describe("The constructor is supposed a proper Captcha object", function() {
    it('Constructor Captcha exists', function(){
        expect(Captcha).toBeDefined();
    });
    var captcha = new Captcha();
    it("Captcha object is not null", function(){
       expect(captcha).not.toBeNull();
    });
    it('captcha object should be an instance of Captcha class', function(){
        expect(captcha instanceof Captcha).toBeTruthy();
    });
    it('the height of the svg should be set to the configured height', function(){
        expect(Number(captcha.svg.attr("height"))).toEqual(defaultConf.height);
    });
    it('the width of the svg should be set to the configured width', function(){
        expect(Number(captcha.svg.attr("width"))).toEqual(defaultConf.width);
    });
});

Add two more tests and they are both failing
Add two more tests and they are both failing
