$(function () { 'use strict'; var $image = $(window.createCropperImage()); $image.cropper({ built: function () { QUnit.test('methods.zoom', function (assert) { var canvasData = $image.cropper('getCanvasData'); var changedCanvasData = $image.cropper('zoom', 0.1).cropper('getCanvasData'); assert.ok(changedCanvasData.width > canvasData.width); assert.ok(changedCanvasData.height > canvasData.height); }); } }); });