Testing is the most important process in software development. It helps businesses to evaluate their software fully. Therefore, several automated testing methods are introduced in the software development process. Testing jobs have become more popular because testing methods are being introduced.

One such job would be a selenium testing job. It is greatly in demand because it gives the industry better exposure. Also, it guarantees a promising career that grows with Experience. 

To become a selenium test engineer, you must clear your job interview. This blog will share the top 20 selenium testing job interview questions. But before that, let’s dive in to know what selenium testing is.

What is Selenium testing?

Tests performed using the selenium tools are commonly referred to as Selenium testing. Selenium is an open-source automated testing framework used to validate web applications on a variety of browsers and platforms. You can create Selenium test scripts using several programming languages ​​such as Java, C #, and Python. 

What is the selenium testing tool used for?

The selenium test tool is used to automate the testing of web applications across browsers. It is used to ensure that high-quality and responsive web applications are released. Selenium is an open-source tool. Testers use selenium because they can easily generate test scripts to validate their functionality. Also, they are extremely reliable.

What Are the Selenium Testing Tools?

Selenium Software is not a single tool but a suite of software, each part of which meets the needs of a company’s various Selenium QA tests. 

Here is a list of selenium testing tools:

  • Selenium Integrated Development Environment (IDE): Selenium IDE is a free plugin for browsers that allows you to record, edit, debug, and play functional tests. 
  • Selenium remote control (RC): Selenium WebDriver is a browser-based driver that helps you access and launches various browsers.
  • Selenium WebDriver: Test engineers and developers will find many options for leveraging Selenium WebDriver technology.
  • -Selenium Grid: Selenium Grid has a hub and nod architecture that allows you to run parallel tests in different browsers.

Top 10 selenium testing job interview questions

  1. What is Selenium, and what is it comprised of?

Selenium is a group of tools used for automated web testing. It consists of:

Selenium IDE (Integrated Development Environment): This is a tool for recording and playback. 

WebDriver and RC: Provides APIs for various languages ​​such as Java, .NET, and PHP. Webdriver and RC work with most browsers. 

Grids: Grids allow you to distribute your tests across multiple machines and run them in parallel. 

  1. How to use selenium in finding an element?

In selenium, each object or control on a web page is called an element. There are several ways to find an item on a web page like surname, sign attribute, CSS, Link text, Partially link text, Xpath, etc.

  1. What are the test types that are supported by selenium?

Selenium can be used for web-based application testing. The supported test types are: 

  1. a) See details of features and functional tests.
  2. b) Regression 

For post-release validation using continuous integration automation tools, a) Jenkins

  1. b) Hudson 
  2. c) Quick assembly
  3. d) CruiseCont

  1. Explain what is an assertion in selenium and what are the types of assertion?

The assertion is used as a validation point. Make sure that the status of your application is as expected. The assertion types are “assert”, “verify”, and “waitFor”.

  1. What is the use of X-path?

XPath is used to search for WebElements on web pages. Also, it helps in identifying dynamic elements.

  1. What is the difference between single and double slash in X-path?

Single slash `/.’ 

A single slash (/) initiates a selection from the document node. This allows you to create an “absolute” path expression.

Double slash’//.’ 

Double slash (//) starts selection anywhere in the document. This allows you to create “relative” pass expressions.

  1. What are the technical challenges with selenium?

The technical challenges of the selenium include:

  • It only supports web-based applications. Bitmap comparison is not supported.
  • All report-related features require the use of third-party tools.
  • No vendor support for tools compared to commercial tools like HP UFT.
  • Selenium doesn’t have the concept of object repositories, which makes objects maintainable.
  1. What is the difference between a type key and a type command? 

TypeKeys () dispatches JavaScript events most of the time, but type command () does not. Typekeys enter value attributes in JavaScript, but .type command () emulates what the actual user input will look like.

  1. What is the difference between verify and assert commands?

Assert: Assert allows you to check if an element is present on the page. If the confirmed item is not available, the test will stop at the failing step. That is, the test will stop when it fails. 

Verify: It is the verification command that checks if the element is on the page, and if not, continues testing. Once verified, it guarantees that all commands will be executed even if one of the tests fails.

  1. What are JUnit Annotations, and what are the different types of annotations which are useful?

JAVA allows you to add special forms of syntax metadata, so-called annotations, to your Java source code. Variables, parameters, packages, methods, and classes are annotated. Here are some of the Java unit’s useful annotations: 

  • Test
  • Before
  • After
  • Ignore
  • BeforeClass
  • AfterClass
  • RunWith