I am trying to write a test in jasmine for JavaScript code including DOM elements which doesn't work. It works when I test only for JavaScript code (just simple functions but not for DOM elements). I have been researching for so long and can'...
I'm using the jsdom node.js module for an app that does some web scraping to get some data it needs.  This works perfectly fine when I run locally.  When I push the application to cloudfoundry however, it crashes.  The log is as follows:     ====...
How do I read in a page from localhost into a headless Jasmine spec so test cases can work on the DOM elements?  My Gulp task is successfully running Jasmine specs for unit testing, and now I need to build integration tests to verify full web pages s...
I am writing tests using Jest for components that use canvas elements. I keep getting an error when I run my tests that looks like this.  Error: Not implemented: HTMLCanvasElement.prototype.getContext (without installing the canvas npm package)   Fro...
Due to the complexity of the application I am working on I have decided on using a nested redux container rather than passing an action as a prop down to the child components. However, this has proved to be problematic for unit testing when rendering...
So I am writing some tests for code that adds a click event on the document.  I am using JSDom, ReactJS, and Mocha/Chai setup.  I have tried the following code in a test:  document.addEventListener('click', function() {   console.log('tes...
I'm trying to migrate from AVA to Jest. In AVA you can set ava.setup, in which you set the jsdom environment. For example, creating the DOM structure and doing necessary polyfills (localStorage).  How do I accomplish that in Jest? Currently, I...
I am trying to manipulate a remote HTML and return it manipulated. I decided to use JSDOM but cannot figure out how to get the manipulated HTML back. Any ideas?    jsdom.env({         url: "http://www.cnn.com",         scripts: ["http://c...
Can anyone help me with testing of following function  function onload(cb){   const image = 'http://placehold.it/350x150'   const img = new Image()   img.src = image   img.onload = () => {     cb()   } }   In my test file Image is availabl...
I'm using HighStock to generate some charts in browser. But now I want to store some of them at the server. So I know that HighCharts can be exported to the server but I'd rather use some other way if possible. The thing is to run HighStock a...

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