defineSuite([
        'Widgets/FullscreenButton/FullscreenButton'
    ], function(
        FullscreenButton) {
    'use strict';

    it('constructor sets default values', function() {
        var fullscreenButton = new FullscreenButton(document.body);
        expect(fullscreenButton.container).toBe(document.body);
        expect(fullscreenButton.viewModel.fullscreenElement).toBe(document.body);
        expect(fullscreenButton.isDestroyed()).toEqual(false);
        fullscreenButton.destroy();
        expect(fullscreenButton.isDestroyed()).toEqual(true);
    });

    it('constructor sets expected values', function() {
        var testElement = document.createElement('span');
        var fullscreenButton = new FullscreenButton(document.body, testElement);
        expect(fullscreenButton.container).toBe(document.body);
        expect(fullscreenButton.viewModel.fullscreenElement).toBe(testElement);
        fullscreenButton.destroy();
    });

    it('constructor works with string id container', function() {
        var testElement = document.createElement('span');
        testElement.id = 'testElement';
        document.body.appendChild(testElement);
        var fullscreenButton = new FullscreenButton('testElement');
        expect(fullscreenButton.container).toBe(testElement);
        document.body.removeChild(testElement);
        fullscreenButton.destroy();
    });

    it('throws if container is undefined', function() {
        expect(function() {
            return new FullscreenButton(undefined);
        }).toThrowDeveloperError();
    });

    it('throws if container string is undefined', function() {
        expect(function() {
            return new FullscreenButton('testElement');
        }).toThrowDeveloperError();
    });
});