How do you write unit test cases in React JS using Jest?
How can I use JEST to do unit testing on React Apps? Step 1: Create a new react app in the first step. Step 2: Create a component in step two. Step 3: For the react component, write a unit test. Note: It’s critical to use the extension in order for jest to recognise this test file. JavaScript is a programming language that allows you to test your code. Step 4: Put the test to the test. Conclusion.