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Why Selenium is still the best tool for testing browser-based Web applications?

There has been so many tools available in the market for testing browser-based Web applications but selenium remains the best, can anyone explain to me why.

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Posted 4 months ago

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The sole purpose behind Selenium is to automate the interaction between browser and web in a way that test cases executed manually by a tester can be executed by an automation script. Although selenium can perform any kind of automation testing, it was originally intended to be used for browser-based testing only. When a web application is being developed, several test case scenarios are executed to check the functionality, accessibility, usability, and security of a web application. Manual testing can be performed for small applications, but when the application is large, the tests become time-consuming and wastage of manual labor. In this article, we shall discuss why Selenium is still the best tool available for browser-based automation testing.

Cross-Browser Support

Cross-browser compatibility issues are often found in web applications. A webpage that is rendered fine in Google Chrome may cause breakage in Safari or IE. Following issues are quite common across various browsers.

  • Mismatch in font size
  • JavaScript not rendered correctly
  • The browser may not support HTML5
  • Certain CSS codes are not supported by a few browsers.
  • Image orientation may cause a problem
  • The browser may not be compatible with the operating system.

Manually testing these issues usually takes a lot of time. The perfect option is provided by Selenium. WebDriver saves a lot of time by automating test cases for Safari, Chrome, IE, and Firefox. Integrating your testing framework with Selenium will save a lot of time by executing multiple test case scenarios across different browsers at the same time.

Cross-Device Testing Made Easier

Nowadays most people are using mobile devices to access websites. It is very important that your web application is supported by all the devices holding the maximum usage share. To test your application manually across devices will consume a lot of time. Usage of emulator makes testing a bit easier, but there are high chances that a critical bug that occurs in an actual device may not occur at emulator. WebDriver again comes into play. After writing a test script it can be easily configured to execute across different devices. Selenium WebDriver can efficiently run test cases for native as well as hybrid applications for various devices.

Open-Source Tool

The biggest advantage of using Selenium is its portability and the fact that its freeware.

  • Using an open source testing tool like Selenium is cost-effective for projects where the budget is low to buy enterprise-grade testing tools.
  • Since it is community-based, the tool is evolved constantly, with new features added to make automated testing easier and faster.
  • Using a testing tool designed by a specific vendor may be problematic, because it may be compatible only with products designed by the same vendor. As long as Selenium has an active community, it will always remain platform independent and constant support will be provided in case of any troubleshooting.

Easy to Implement

A primary feature of an automation testing tool is that it should be easier to implement. Often in projects using Agile methodologies, when an automation tool is introduced suddenly to the team, quite some time is taken to get the team trained and familiarized with the tool. That is not the case with Selenium. It offers a user-friendly interface that allows users to create and run test cases efficiently. The tool being open source also allow users to create extensions and manipulate certain customizable actions.

Platform Independence and Multi-OS Support

There are multiple languages to learn in the programming domain. Projects may be developed using Java, .Net, Python etc. The biggest advantage of using Selenium is its platform independence. Apart from Java and .net it supports multiple programming languages like Perl, Python, C#, javaScript etc. Moreover, it does not stay limited to a certain language in spite of having its own script. Whatever language the tester or developer is comfortable with, Selenium can adjust itself to that.

Not only that, but Selenium can also be used across multiple operating systems like Mac, Windows, Linux etc. Using Selenium Solution Suite, the tester can develop a customized testing suite that can be tailored on any platform. It can then be executed similarly upon another platform. For example, a tester can create test cases using Linux OS and once testing on Linux is done, it can be executed again on a system based on Windows.

Source: Why Selenium Is Still the Best Tool for Testing Browser-Based Web Applications

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