IBM DevOps Test Performance helps software testing teams test earlier and more frequently by shifting testing left. IBM DevOps Test Performance validates the scalability of web and server applications, identifies the presence and cause of system performance bottlenecks and reduces load testing. Software testing teams can execute performance tests that analyze the impact of load on applications.
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Selenium
Score 8.1 out of 10
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Selenium is open source software for browser automation, primarily used for functional, load, or performance testing of applications.
Go for IBM RPT if: 1. You're testing a Java-based Web application with HTTP protocol 2. You wanted to distribute the load across machines easily 3. Your team is in learning phase/not really introduced to a wide range of performance testing tools Do not go for IBM RPT if: 1. You wanted to test REST or any other advanced protocols 2. Your system under test demands a very high user load 3. Your application is written in .NET or any other platform except Java.
When you have to test the UI and how it behaves when certain actions are performed, you need something that can automate the browsers. This is where Selenium comes to the rescue. If you have to test APIs and not the frontend (UI), I would recommend going with other libraries that support HTTP Requests. Selenium is good only when you have no choice but to run the steps on a browser.
Memory utilization could have been improved.(Eats up system's RAM)! It may crash if a test is conducted with the heavy load if adequate RAM is not available in the VM/host machine.
Licensing could have been made simpler. IBM's licensing method is difficult to follow.
Support for protocols other than HTTP. Not really up to the current trend.
Selenium is pretty user-friendly but sometimes tests tend to flake out. I'd say roughly one out of twenty tests yields a false positive.
Selenium software cannot read images. This is a minor negative because a free plug-in is available from alternate sources.
Slowness may be a minor factor with Selenium, though this is an issue with basically any testing software since waiting on a site to execute JavaScript requires the browser to wait for a particular action.
We love this product mainly because of its high customization abilities and the ease of use. Moreover, its free and can be learned easily through online communities and videos. The tests are more consistent and reliable as compared to Manual tests. It has enabled us to test a large number of features all in one go, which would have impossible through manual tests. The reports generated at the end of the tests are really helpful for the QA and the development teams to get a fair view of the application.
As I mentioned earlier, the reason I use Selenium is because there is a fairly widespread community of users, and user support services are at a good level. because the application is open source, it works on many platforms (Windows, Linux, IOS) without any problems. In addition, it gives us a lot of options for writing functional tests. For errors that we receive through the application, we can easily find the reasons for errors in the forums.
Selenium does not have technical support available easily. You have to go through forums to get the information you need. However, there are excellent forums out there that make it easy to troubleshoot. The open-source flexibility makes it difficult to have dedicated support.
We did everything we needed to use it. Now we can execute our tests on different operational systems and browsers running few tests simultaneously. We also implemented Appium framework to execute our tests on mobile devices, such as iPhones, iPads, Android phones and tablets. We use SauceLabs for our test execution and Jenkins for continuous integration.
IBM Rational Performance Tester is better in many aspects when compared to Apache JMeter. For example, you have ready made scripts to assist you, You have better monitoring of different performance metrics and can generate better reports that can be exported as HTML. The only downside of IBM RPT is that it can be very costly at times while JMeter is for free which is a huge advantage. That's why we try using in our organization a combination of both as much as we can.
At the time of adoption, there were not many other alternatives that were even close to being competitive when it comes to browser testing. As far as I know now to this day, there is still little competition to Selenium for what it does. Any other browser-based testing still utilises Selenium to interact with the browser.
