Markus Oberlehner
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Articles about Acceptance testing

Using Docker to run BackstopJS Powered Visual Regression Tests

My very own CSS framework avalanche, uses BackstopJS for regression testing. Unfortunately, for the most time, this didn't work as expected on my continuous integration service of choice: Travis CI. The rendering of fonts is slightly different on the Linux image which is used on Travis CI compared to macOS which I use for development...

Visual Regression Testing with Nightwatch.js and Cucumber.js

As most of my regular readers have probably already noticed, I'm a huge fan of testing all the things. In many of my recent articles, we've already explored multiple techniques for unit testing and acceptance testing. Unit testing ensures that certain parts (or _units_) of our code do work correctly with acceptance testing, we can guarantee that what we've built does what it should do. Visual regression testing makes it possible that we can test if our application looks the way it's supposed to look...

Crazy Powerful Nightwatch.js Cucumber Step Definitions

Although testing, and especially acceptance testing, seems like a rather boring topic (at least to many developers) in the past few months I acquired an interest in optimizing the test setup and come up with better ways of writing tests. Especially when using Nightwatch.js in combination with Cucumber.js, there is another challenging aspect to it: writing step definitions...

Network Stubs and Timers with Nightwatch.js and Cucumber.js

In my previous article about automated acceptance testing with Cypress I explored the possibilities of the `cy.route()` and `cy.clock()` commands. Because I fell in love with how easy it is to stub network requests and manipulate JavaScript timeout functions (like `setTimeout` and `setInterval`) with those two commands, I began to feel bad about not having this functionality in Nightwatch.js und Cucumber.js powered acceptance tests...

Automated Acceptance Testing with Cypress and Vue.js Part 1: Setup

In today's article, we're going to take a look at one of the rising stars in the automated end-to-end testing scene: Cypress. When I first discovered Cypress, I thought that it looks very promising, but I was skeptical if it can live up to the hype...

Speeding up Nightwatch.js Powered Acceptance Tests

Today we will examine two ways how we can speed up the testing process with Nightwatch.js – because faster is always better. The first small speed improvement can be achieved by eliminating Selenium from the setup...

Acceptance Testing with Nightwatch.js and Cucumber.js Part 2: Smart Step Definitions

In an ideal world, it should be possible to write basic acceptance test specifications without having to add any new step definitions. In the real world this is not always possible, because some features, with some very specific functionality, might need special treatment and are impossible to test without writing custom step definitions...

Acceptance Testing with Nightwatch.js and Cucumber.js Part 1: Setup

Nightwatch.js is battle-tested and has proven to be a potent tool in the utility belt when it comes to conducting end-to-end tests. The combination of Nightwatch.js and Cucumber.js enables the writing of robust automated acceptance tests in plain language (Gherkin) so that every project stakeholder can read and understand the test definitions...

Dealing with the BrowserStack Parallel Test Limit When Using TestCafe

One problem you might encounter when trying to run cross-browser tests in multiple browsers on BrowserStack with TestCafe is the parallel test limit that depends on your BrowserStack plan. At the time of writing, all regular BrowserStack plans include only one parallel test - which means you can only run one automated test at a time...

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