What Is Parallel Testing In Selenium (1)
                     What Is Parallel Testing In Selenium?
Testing solutions have become more scalable than ever as organisations shift away from 
manual testing and toward Selenium test automation. Most firms, on the other hand, are still 
battling with the scalability needed to run several tests in parallel. Sequential testing, which 
involves time, resources, and effort, is still used by many firms to provide quality assurance.
Selenium for parallel testing is viewed with scepticism by some. Others, on the other hand, are 
unlikely to do so since their web application is too small to fit into the present release windows.
The main purpose of the Selenium Grid is to enable testers to run tests in parallel. Parallel 
testing is a semi-automated testing method that uses cloud and virtualization technologies to 
run tests on many settings at the same time. The purpose of this method is to work around 
schedule and budget constraints while maintaining high quality.
Parallel testing saves time and effort during execution, resulting in a faster time to market. 
Cross-browser, compatibility, localization, and internalisation testing are all advantages. For 
example, if we have two versions of software available and need to test their stability and 
compatibility, we can run both versions of software simultaneously. The main purpose of 
running tests in parallel with a Selenium grid is to reduce the time and effort of automated 
browser testing while maintaining a high-quality product.
The parallel testing approach can be used to analyse a single application or the components of 
many platforms. On a different machine, any application or subcomponent, such as operating 
systems, browsers, or any combination, can be evaluated.
While parallel testing can be applied to individual hardware units, it is more commonly linked 
with cloud virtualization. Parallel testing allows you to run more tests than sequential testing, 
regardless of whether your testing equipment are physical or virtual. The parallel testing 
approach can be used to analyse a single application or the components of many platforms. On 
a different machine, any application or subcomponent, such as operating systems, browsers, or 
any combination, can be evaluated.
While parallel testing can be applied to individual hardware units, it is more commonly linked 
with cloud virtualization. Parallel testing allows you to run more tests than sequential testing, 
regardless of whether your testing equipment are physical or virtual.
Uses of Parallel Testing
Parallel testing is used for variety of purposes. The following are some examples of situations 
when it might be the greatest fit:
1. Cross-browser testing
2. Compatibility testing
3. Evaluating different versions
4. Localization and internationalization are being tested.
5. Reviewing the language and confirming the context
6. Getting the job done
7. Configuring the environment for testing
When Should You Use Selenium Parallel Testing?
Now that you know how Selenium parallel testing can help with application continuous 
integration and delivery, it's time to figure out when and how you should use it in your SDLC. 
Parallel testing can be utilised in the following scenarios:
● There is even some scepticism about the new programmes' functioning, especially if the 
updated and prior versions of the software are almost identical.
● When it comes to financial applications related to banking, the most of them are the 
same. Selenium parallel testing can be used to validate earlier and newer versions of an 
application.
● When moving historic data from one system to another or switching a company from one
system to another. 
● When you need to test your app across a variety of browsers, operating systems, and 
devices, automated browser testing is the way to go.
Conclusion
When it comes to automated cross-browser testing, Selenium parallel testing is an excellent 
approach to deploy online applications quickly without sacrificing quality. By running Selenium 
test automation in parallel, you may decrease QA costs, run test cases with high accuracy, 
optimise continuous integration/delivery processes, and constantly enhance test scripts.