I’m actively reading the Gang of Four (aka Erich Gamma, Richard Helm, Ralph Johnson, and John Vlissides’s Design Patterns: Elements of…

When it comes to testing your application, it’s often useful to know how much of your code is covered in one way or another by tests…

To run Jest in watch mode, pass the option: By default, Jest will run tests against all changed files since the last commit, but watch mode…

I was reading a blog post recently when the author used the phrase, “the pit of success”. While I could deduce the intent, I was curious…

In a previous post about abstracting utilities in Jest, I demonstrated how to create a wrapper for the method of the React Testing Library…