Selenium Questions – TYPICAL

This is a collection of interview questions that are not commonly asked when going for an interview. These questions are taken from problems that I/my team have actually faced while working with Selenium.

• How do you handle multiple levels of shadow DOM inside a web app that you are testing with Selenium?

We’ll create one function – that will expand the parent shadow-dom tree

Upon calling on multiple iterations on the nested shadow-dom elements, this will expand the parent shadow-dom,
and then try to find any element if we want inside it and then perform any action on that element.

• Let’s say we have a page where there is an auto-scroll functionality. How can you write a method using Selenium so that the scroll works until the last record ? How will you stop the scroll?

• Consider the following structure

– Main Window

– Iframe 1

– Iframe 2

User performs some action inside frame 2

In this scenario, how do a user returns to

– Main Window

– Iframe 1

• How to ignore a SSL certificate change error in Chrome using Selenium

• What are Pseudo-elements? How can we handle them using Selenium?

• What are the options of re-sizing the browser window in Selenium?

• Can I minimise a browser window in Selenium?

• When running Selenium in headless mode, a lot of the times we see people using these flags

–no-sandbox

–disable-shm-usage

Do you know what does these flags mean?

• How to send multiple whitespace characters in a single sendkeys statement in Selenium?

• Selenium 4 has been released. What are the new locators being talked about in Selenium 4?

• Have you ever implemented your Selenium code in Docker? Can you give an example?

• Have you heard of Allure reports? Have you integrated allure reports in Selenium?

• Can we interact with Chrome devtools in Selenium?

• How can you test a new Chrome extension using Selenium?

• Tell me about Screenshots in Selenium? How are they useful? A little bit about the implementation.

• Is it possible to find the cursor of the currently focussed element in the web page?

• Recently Selenium 4 was released. In Selenium 4 we can mock geo-location? Do you know how we can do that?

• What is localisation testing? How can we do localisation testing using Selenium?

• How do you stop auto-scrolling while testing a page in Selenium in Chrome browser?

• How do I ignore a SSL certificate change in Chrome when automating with Selenium?

• Do you know what are Pseudo elements? Do you know how to handle them in Selenium?

• Can I change the size of the browser in Selenium? If so how?

• So Selenium 4 has been released for a while now right? Do you know on an architecture level what is the difference between Selenium 3 and Selenium 4.

• Have you implemented loading of a custom profile in either Firefox or Chrome using Selenium?

• I’ve a Chrome extension that I want to test? Do you know how we can load an extension when running test suite using Selenium?

• Do you know what method can be used to get all the cookies pertaining to a web page in Selenium?

• Can I set a cookie which has domain other than the current domain under which Selenium tests are running?

• Can we add/remove items from browser localStorage using Selenium?

• Do you know if I can accept/reject a push notification using Selenium?

• Can I open multiple Chrome instances in a single Selenium test?

• How to add a proxy in Selenium tests?

• Do you have any idea of the concept of lazy loading? How do you automate this in Selenium?

• We have a click method in Selenium, and there is another click method that is available in JS. What is the difference in both?

• Can you tell me how can I set up Selenium Grid?

• How can I get the hyperlinks pertaining to a particular node in Selenium?

• How can I get background-color or any other such CSS property of an element in Selenium?

• Can In send an input text to a text box without using sendkeys() method?

• Have you downloaded a file using Selenium? How can I change the download directory in Chrome browser for Selenium tests?

• How can I get the HTML source of a page in Selenium?

• What are the different Xpath axes that you know of? Can you explain them with examples?

• Let’s say you have a page like Facebook, where as you keep scrolling , the data keeps getting added. How can you handle such scenarios in automation?

• How can we work with SVG elements in Selenium? How can I write xpath for a SVG element?

• Have you heard of pageLoadStrategy in Selenium?

• How can I get the data of a specific column when working with Selenium webdriver?

• Have you worked on automation of a grid like element – like ag-grid?

• How can I do a right / left scroll in Selenium?