Unit Testing Phoenix Controllers with Mox

As the ecosystem for Elixir matures more and more, there are some libraries that seem particularly promising to me. One of them is Mox, a simple but powerful library for implementing mocks for predefined behaviours (note the British spelling!).

An Introduction to Property-Based Testing with JavaScript

Property-based testing is a powerful technique that’s been widely and successfully applied to functional-style codebases for a long time. As functional programming continues to get more and more popular among JavaScript developers, the value of this style of testing is becoming more obvious to a wider audience.

Using State Tables for Testing

Tests can benefit a project in many different ways. For example, they help ensure that the software behaves as expected. They also help document that functionality for pieces of code that other developers may have to maintain. Lately, I’ve been using state tables in my tests to improve both of these benefits. State tables allow for […]

Testing Email Workflows Using Disposable Email Addresses

A sometimes tricky and always mundane element of developing web applications is testing email workflows such as account registration or invitation. In this post I will go over some strategies for using disposable email to do just that. Email Workflows Almost universally, online identities are tied to one of three things: an email address, an […]

Four Tips and Tools for iOS Testing in Swift

Automated testing is an essential part of every development project we undertake at Atomic Object. In the past year, I have worked on multiple iOS applications in Swift. Here are four things I’ve discovered that make unit and integration testing more convenient and flexible.

Accept It: Software is Wabi-sabi

Last week, after dealing with a frustrating build and deployment issue, I reflected on what makes software development frustrating at times–specifically, the well-known feeling that code “rots” over time. I happened to glance at a small Zen rock garden my wife had given me long ago and was reminded of wabi-sabi.

Take Your Emacs to the Next Level by Writing Custom Packages

I wrote recently about using Emacs as a JavaScript development environment. One of my chief complaints was the inability to easily run JavaScript tests from within Emacs. I practice TDD frequently, and having to context-switch out of the editor I’m using to run tests is a big annoyance for me. I knew it was possible […]

Testing with Swift – Approaches & Useful Libraries

I’ve been working on developing an iOS app in Swift. It’s my first experience developing in pure Swift, without any Objective-C. This project has taught me a lot about the current state of testing in Swift, including different testing approaches and best practices. In this post, I’ll share some of my experiences and discuss how […]

Bye-Bye, Sinon – Hello, testdouble

UPDATE: Justin Searls, the author of testdouble.js sent me an email with some notes on this post. I’ve added some his comments below to provide some additional context. I’ve been working in JavaScript-land for the last little while, writing lots of Node.js code. Since I practice TDD, I’m always trying to keep my eye on […]

How I Test CSS

At Atomic, we practice Test-Driven Development for all the code we can, from single functions to entire stacks. But there’s one kind of code we’ve long neglected testing: CSS. We rarely have coverage of it, and we often discover bugs and style regressions long after they were introduced. We’re not alone. Most software developers don’t […]

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