jester js for typescript testing

If you are writing your code in typescript and decided to use jesterjs then this is the right blog to read. Jesterjs works well with .js files. If you're using typescript, you need to ts-jest.

To setup,

npm install --save-dev jest typescript ts-jest react-test-renderer

Then you need to configure file presets :-

npx ts-jest config:init

Then you can follow sample code as given by Jesterjs here, https://jestjs.io/docs/en/tutorial-react

Hope this helps to add test to your project, faster