Monday, 18 March, 2019 UTC


Kent walks us through the internals of dom-testing-library and react-testing-library. There is a lot of set-up and tear down when testing UI components. These two libraries take away a lot of the work required to test React components well. Jest is commonly used in tandem with react-testing-library to assert results of your components. Jest simulates most browser apis with jsdom. react-testing-library helps you get values out of your components the same way your end users will. Links from the show: - [Testing Library]( - [Testing Javascript]( - [Unit vs Integration vs E2E]( - [Why you shouldn't ReactDOM.render to the body]( - [Effective Snapshot Testing]( - [Dev Tips with Kent]( -