Sandbox: migrate React.JS component tests from Enzyme to React Test Library

Task

Migrate Enzyme tests eznyme.test.tsx to React Test Library react-testing-library.test.tsx

Prerequisites

• Install Node.js v16.20.1. The particular version is required.
• Install yarn package manager.

Project initialization

1. Install dependencies: run following command in a terminal from the project's root folder

   yarn
   

2. Install project dependencies: run following command in a terminal from the project's root folder

   yarn install
   

3. Smoke test: run application in development mode to make sure it renders a button and a toggle.

   yarn start
   

   Open http://localhost:3000 to view it in the browser.
   The page will reload if you make edits.
   You will also see any lint errors in the console.

Run tests

yarn test-watch

Launches the test runner in the interactive watch mode.
See the section about running tests for more information.

yarn test -u

Launches the test runner with snapshots update