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Playwright Automation API Testing mocking data

Playwright is a powerful automation library for web browsers that supports various programming languages such as JavaScript, TypeScript, and Python. While Playwright itself doesn't provide direct support for mocking data in API testing. - Playwright Online Training

Here is a general approach using Playwright for API testing and a separate library for mocking data:

1. Use Playwright for Browser Automation: Set up Playwright to navigate through your web application and interact with it.

Example (in TypeScript):

   ```typescript

   const { chromium } = require('playwright');

    (async () => {

     const browser = await chromium.launch();

     const context = await browser.newContext();

     const page = await context.newPage();

    // Use Playwright to navigate and interact with your application

     await browser.close();

   })();

   ``` - Playwright Automation Testing Hyderabad

2. Use a Library for API Mocking: Choose a library for mocking API requests and responses. A popular choice is `nock` for JavaScript/TypeScript. Nock allows you to intercept HTTP requests and provide custom responses.

   Example using nock (in TypeScript):

   ```typescript

   import nock from 'nock';

   // Mocking an API endpoint

   nock('https://api.example.com')

     .get('/data')

     .reply(200, { key: 'mocked-data' });

   ```

   With this setup, when your Playwright automation script makes a request to `https://api.example.com/data`, it will receive the mocked data instead of hitting the actual API. - Playwright Automation Online Training

3. Integrate Playwright with API Mocking: Modify your Playwright script to use the mocked data when interacting with API endpoints.

   Example (in TypeScript):

   ```typescript

   const { chromium } = require('playwright');

   import nock from 'nock';

   (async () => {

     // Set up nock for API mocking

     nock('https://api.example.com')

       .get('/data')

       .reply(200, { key: 'mocked-data' });

     // Set up Playwright

     const browser = await chromium.launch();

     const context = await browser.newContext();

     const page = await context.newPage();

     // Use Playwright to navigate and interact with your application,

     // which includes making API requests

     // Close the browser

     await browser.close();

   })();

   ``` - Playwright Course in Hyderabad

By combining Playwright with a library like nock, you can automate browser interactions and mock API responses to simulate different scenarios during testing.

 

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