Sunday, 9 April 2023

Top 10 Playwright Interview Questions and Answers 2023 with Installation Steps

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Attention fellow test developers! Have you heard about Playwright? 🤔 It's a powerful open-source automation library for testing web applications that has been gaining a lot of buzz lately.

What sets Playwright apart from other automation libraries is its ability to automate modern web features like shadow DOM, service workers, and web components. Plus, it's cross-browser compatible and supports all major browsers including Chrome, Firefox, Safari, and Edge.

With Playwright, you can write automated tests in multiple programming languages like JavaScript, Python, and C#. And the best part? Playwright is designed to be fast and reliable, making it a great tool for continuous integration and deployment.

If you haven't checked out Playwright yet, I highly recommend giving it a try. It's easy to get started with and there's a growing community of developers sharing their experiences and best practices. Let's make testing web applications easier and more efficient together! 💻🚀 #Playwright #WebTesting #Automation #OpenSource

Let's first learn to install Playwright

Here are the steps to install Playwright along with the relevant links:

Install Node.js on your system, if it is not already installed. You can download it from the official website: https://nodejs.org/en/
Open a command prompt (or terminal) and install Playwright by running the following command: npm i playwright

This will install Playwright and its dependencies.
Once the installation is complete, you can start using Playwright in your Node.js projects.

Here are some useful links that you may find helpful:

Playwright documentation: https://playwright.dev/docs/intro
Playwright GitHub repository: https://github.com/microsoft/playwright
Playwright NPM package: https://www.npmjs.com/package/playwright

What is Playwright, and how does it differ from other testing frameworks? Answer: Playwright is a Node.js library for automating web browsers, such as Chrome, Firefox, and Safari. It provides a powerful API for browser automation that allows you to write reliable and maintainable tests. Unlike other testing frameworks, Playwright provides cross-browser testing capabilities out of the box, making it a powerful tool for testing web applications.
What are the advantages of using Playwright? Answer: Some advantages of using Playwright include cross-browser testing capabilities, support for multiple programming languages, a powerful API for browser automation, and integration with popular test runners.
Can you explain the Playwright architecture? Answer: Playwright uses a modular architecture, with separate modules for each browser. Each module provides a consistent API for automating the browser, regardless of the underlying technology used by each browser.
How do you handle asynchronous operations in Playwright? Answer: Playwright provides a built-in mechanism for handling asynchronous operations using the "async/await" syntax. This allows you to write code that waits for a specific condition to occur before continuing with the next step in the test. 👉👉Automation Metrics is very imp for Automation QA and SDET, if you are trying for SDET role do check out our post on SDET Job Roles & Responsibilities
Can you explain how to take screenshots with Playwright? Answer: Playwright provides a "screenshot" method that allows you to capture screenshots of the browser at a specific point in time. You can specify the file format, quality, and location of the screenshot.
How do you handle user input with Playwright? Answer: Playwright provides a "type" method that allows you to simulate user input. You can specify the text to be typed, as well as the speed at which it should be typed.
Can you explain how to use Playwright with different test runners? Answer: Playwright can be integrated with popular test runners such as Jest, Mocha, and Jasmine. You can use the "playwright-test" library to run tests in parallel and generate detailed reports. 👉👉How to use ENUM in Test Automation Framework
How do you handle page navigation with Playwright? Answer: Playwright provides a "goto" method that allows you to navigate to a specific URL. You can also use the "back" and "forward" methods to navigate backward and forward in the browser's history.
How do you handle authentication with Playwright? Answer: Playwright provides a "setHTTPCredentials" method that allows you to authenticate with a server using basic authentication. You can also use the "setExtraHTTPHeaders" method to set custom headers.
Can you explain how to handle network requests with Playwright? Answer: Playwright provides a "route" method that allows you to intercept and modify network requests. You can use this method to simulate slow network conditions or test how your application behaves under different network scenarios.