React.js library is all about splitting the app into several components. Each Component has its own lifecycle. React provides us some in-built methods that we can override at particular stages in the life-cycle of the component.
In this article, we will know how to use testInstance.findByProps() method. The testInstance.findByProps() method is used to find a single descendant test instance with the provided props.
Creating React Application and Installing Module:
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Step 1: Create a React application using the following command
npx create-react-app foldername
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Step 2: After creating your project folder i.e. foldername, move to it using the following command.
cd foldername
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Project Structure: It will look like the following.
Step 3: After creating the ReactJS application, Install the required module using the following command:
npm install react-test-renderer
Example 1:
App.js
import React from 'react'; import TestRenderer from 'react-test-renderer';   // Defining our App Component const App = () => {   // Function to demonstrate TestRenderer.findByProps() method function func(){     const renderer = TestRenderer.create(         <div>             neveropen             <div>                 TestRenderer.findByProps() method             </div>         </div>       );     const myfindByProps = renderer.root;     console.log(myfindByProps.findByProps());   } func();   // Returning our JSX code return <>       </>; }   // Exporting your Default App Component export default App |
Output:Â
Reference: https://reactjs.org/docs/test-renderer.html#testinstancefindbyprops
