Selenium Interview Questions – Set 01

by

What are the advantages of automation testing?

Some basic Advantages of automation testing are as follows.

  • Automation testing supports both functional and performance test on an application.
  • It supports the execution of repeated test cases.
  • It facilitates parallel execution.
  • It aids in testing a large test matrix.
  • It improves accuracy because there are no chances of human errors.
  • It saves time and money.

Name some of the commonly used Automation Testing tools that are used for Non-Functional Automation.

Lists of some commonly used Automation Testing tools for Non-Functional Automation are as follows.

  • Load Runner, provided by Hp.
  • JMeter, provided by Apache.
  • Burp Suite, provided by PortSwigger.
  • Acunetix, provided by Acunetix.

What is Selenium?

Selenium is a portable framework for software testing. Selenium tool facilitates with a playback tool for authoring functional tests without the need to learn a test scripting language.

Selenium is one of the most widely used open source Web UI (User Interface) automation testing suite. Jason Huggins developed Selenium in 2004 as an internal tool at Thought Works. Selenium supports automation across different browsers, platforms, and programming languages.

What are the different components of Selenium?

Selenium is not just a single tool but a suite of software’s, each having a different approach to support automation testing. It comprises of four major components which include:

  1. Selenium Integrated Development Environment (IDE)
  2. Selenium Remote Control (Now Deprecated)
  3. WebDriver
  4. Selenium Grid

List out the names of programming languages, browsers and operating systems that are supported by Selenium.

Selenium supports various operating systems, browsers and programming languages. Following is the list:

  • Programming Languages: C#, Java, Python, PHP, Ruby, Perl, JavaScript.
  • Operating Systems: Android, iOS, Windows, Linux, Mac, Solaris.
  • Browsers: Google Chrome, Mozilla Firefox, Internet Explorer, Edge, Opera, Safari, etc.

What are the different types of annotations which are used in Selenium?

JUnit annotations which can be used are:

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

What are the significant changes/upgrades in various Selenium versions?

Selenium v1.0:

  • Version 1.0 was the initial release of Selenium.
  • It included three tools: Selenium IDE, Selenium RC, and Selenium Grid.
    Selenium v2.0:
  • Selenium WebDriver was introduced replacing Selenium RC in version “2.0”.
  • With the onset of WebDriver, RC got deprecated and moved to the legacy package.
    Selenium v3:
  • The latest release Selenium 3 has new added features and functionalities.
  • It includes Selenium IDE, Selenium WebDriver, and Selenium Grid.

What is the wait? How many types of waits in selenium?

Selenium Webdriver introduces the concept of waits for the AJAX-based application. There are two types of waits:

  1. Implicit Wait
  2. Explicit Wait

List out some of the Automation tools which could be integrated with Selenium to achieve continuous testing.

Selenium can be used to automate functional tests and can be integrated with automation test tools such as Maven, Jenkins, &Docker to achieve continuous testing. It can also be integrated with tools such as TestNG, &JUnit for managing test cases and generating reports.

What are the WebDriver supported Mobile Testing Drivers?

WebDriver supported “mobile testing drivers” are:

  • AndroidDriver
  • IphoneDriver
  • OperaMobileDriver