ReactJS testInstance.findByProps() Method

ReactJS testInstance.findAllByProps() Method

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:

Step 1: Create a React application using the following command
```
npx create-react-app foldername
```

Step 2: After creating your project folder i.e. foldername, move to it using the following command.
```
cd foldername
```

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> 
            w3wiki 
            <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:

Reference: https://reactjs.org/docs/test-renderer.html#testinstancefindbyprops

Tags:

#ReactJS-Methods #ReactJS #Web Technologies

ReactJS testInstance.findAllByProps() Method

ReactJS testInstance.findByProps() Method

App.js

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