Family, Code, Run
In 12 minutes, I shared with my colleagues three tips I used to refactor tests of legacy code. Testing the API, ensuring the tests fail for the right reason, and avoiding the coupling pitfall are exhibited in this live …
How do I approach a new feature in an open source project? How do I TDD a frontend feature? What do we use for cross-browser testing? All this and more in this live coding session recording
This is the recording …
How do you know your test is effective? How do you know your test protects you from breaking changes? And how can you do TDD without doing TDD? The best distillment of TDD taken from a TDD workshop in JFokus.…
How can tests be your best documentation? What small changes can improve the contract between your code and its consumers? Learn how to improve your tests from a real-world example.
Yes, we write them to ensure fewer things break before …
How to build a chrome extension, manipulate and interact with a page and publish it to the Chrome Web Store? Here’s how I created a Chrome extension that enables me to style the text in my posts and comments – …
How to avoid constant tests maintenance and regressions in your code? In this article, we will talk about a new term “the Coupling Pitfall”, what harm it is doing to your code, and a way to fix it.
When it comes to testing, checking a single function is different from testing a complete application at once. It helps to understand the flaws in any units of the application and allows the developers to take appropriate steps.
What is the new standard to serve both an ECMAScript Module (ESM) as well as Commonjs in the same package? How to use it? And how to make Jest and Playwright to work with it?
When developing an npm package, …
Here are 6 practical lessons learned from a production incident, ui-test coverage (using playwright) and code review.
Today we had a small incident in production – one of my teammates found out a feature in one of our component doesn’t …
How to develop an algorithm using TDD? In this article we will implement the Diamond-Square algorithm using TDD. This article was inspired by Uncle Bob’s blog post TDD Lesson – Terrain Generation.
Well, one of the things I did during …