HTTPie consists of a single http command designed for painless debugging and interaction with HTTP servers, RESTful APIs, and web...
Checking if a JavaScript value is of a given type can be very confusing: There are two operators typeof and...
You are not using javascript tests The file is served from a public folder (not via controller) Problem description...
An end-to-end test (E2E test) is a script that remote-controls a web browser with tools like Selenium...
Slides for Henning's talk on Sep 21st 2017. Understanding sync vs. async control flow Talking to synchronous (or "blocking...
While the hardware mute button of my Lenovo x230 worked on Ubuntu 14.04 out of the box, it does not...
These tools help you in checking websites globally: DNS Checker This tool allows for global DNS propagation checking. GeoScreenshot
Middleman is a static page generator that brings many of the goodies that Rails developers are used to.
Note: The behaviour of Spreewald's within step is as described below for version < 1.9.0; For Spreewald >= 1.9.0 it is...
Website that offers lots of different kinds of HTTPS configurations, bad or good or complicated. They also offer a dashboard...
Occasionally, you have to talk to APIs via HTTPS that use a custom certificate or a misconfigured certificate chain (like...
Using VCR to record communication with remote APIs is a great way to stub requests in tests. However, you may...
There seems to be a nasty bug in Chrome 56 when testing with Selenium and Capybara: Slashes are not written...
To create a 10 GB file: fallocate -l 10G huge_file.dat
If the application under test makes sound, you probably want to disable this during integration testing. You can use the...
A comprehensive introduction to sending HTML emails. Intro: HTML email: Two words that, when combined, brings tears to a developer...
When testing your command line application with Aruba, you might need to stub out other binaries you don't want...
When you're writing specs for ActiveRecord models that use memoization, a simple #reload will not do: it 'updates on...
We have released a new library Gemika to help test a gem against multiple versions of Ruby, gem dependencies and...
When your controller action raises an unhandled exception, Rails will look at the exception's class and choose an appropriate...
When testing Ruby code that prints something to the terminal, you can test that output. Since RSpec 3.0 there is...
TL;DR If you want to support most browsers, then don't exceed 50 cookies per domain, and don't...
fake_stripe spins up a local server that acts like Stripe’s and also serves a fake version of Stripe.js...
When building a form with a file select field, you may want to offer your users a live preview before...