Not very many people know, that Jasmine provides you an ability to customize the result of equality check, which is internally used in toEqual, toHaveBeenCalledWith, and other matchers. Basically, it means that if the right-side object has an asymmetricMatch method, the result if its call will be used instead of…

Today I will tell you a little trick how to make your test code a bit fancier and easier to maintain. The PageObject pattern is quite common in Selenium testing world, but it can be also useful when you are writing unit tests on every single UI-Component. Disclaimer: there will…

Sometimes you need to check that your web application is working well. How can we test it? Unit testing is fine, it doesn't test your entire code as-is, every module is tested isolated from others. Sometimes you need some tool, that runs a real browser, simulates some actions like a…

Watch mode is important thing of modern build systems, especially for front-end. Gulp also has this feature but with a few caveats, which makes work more difficult. …