facebook.github.io Jest Reviews and details

Social recommendations and mentions

• Front-end Guide

  Jest is a testing library by Facebook that aims to make the process of testing pain-free. As with Facebook projects, it provides a great development experience out of the box. Tests can be run in parallel resulting in shorter duration. During watch mode, by default, only the tests for the changed files are run. One particular feature we like is "Snapshot Testing". Jest can save the generated output of your React... - Source: dev.to / over 1 year ago

• I'd like to have my image filenames / paths when using Jest Snapshots

  I've started using Jest a lot in a new project, and I am now using the Snapshot functionality of Jest. Source: almost 2 years ago

• Can't get Jest to work with Styled Components which contain theming

  I've been using Jest and Enzyme to write tests for my React components build with the awesome Styled Components library. Source: about 2 years ago

• Running jest tests directly in Intellij Idea/WebStorm?

  I'm using jest to write tests in my ReactJS application. So far, to run my test suite, I need to type 'npm test'. Source: about 2 years ago

• How to add <canvas> support to my tests in Jest?

  In my Jest unit test I am rendering a component with a ColorPicker. The ColorPicker component creates a canvas object and 2d context but returns 'undefined' which throws an error "Cannot set property 'fillStyle' of undefined". Source: about 2 years ago

• Components using Date objects produce different snapshots in different timezones

  I'm using Enzyme with enzyme-to-json to do Jest snapshot testing of my React components. I'm testing shallow snapshots of a DateRange component that renders a display field with the current range (e.g. 5/20/2016 - 7/18/2016) and two DateInput components that allow selecting a Date value. This means that my snapshot contains the Dates I pass to the component both in the DateInput props and in a text representation... Source: about 2 years ago

• API Testing Tools in JavaScript

  Frisby.js an API testing tool built on top of Jest that makes testing API endpoints easy Fast and fun. - Source: dev.to / almost 3 years ago