Performance/Load test using selenium webdriver prerecorded steps

Question

I have been using selenium webdriver as my main method to do functional tests. So far its been working greate with our product.

I need to do some performance and/or load tests on the website, I was wondering if there is a tool that would incorporate my selenium tests or a tool which i can use with the recorded tests as the base.

Currently i am using selenium webdriver with C#

Any help is appreciated.

Answer 1

Why do you need to run full browsers. HTTP layer tests are far simpler? You also should be looking at only a subset of business processes in performance which generate a preponderance of load.

Answer 2

Given you have tests written in C# the most obvious way would be using Visual Studio Load Testing capabilities.

If you are looking for a free and open-source solution I would recommend going for Apache JMeter. JMeter has integration with Selenium via WebDriver Sampler plugin so you should be able to run your Selenium tests in multi-threaded manner. However you will need to convert your C# code into one of the WebDriver Sampler supported languages (default is JavaScript)

Remember that Selenium tests are very resource-intensive as real browsers consume a lot of CPU/RAM so the number of virtual users you will be able to mimic this way will be very limited. So recommended approach is creating main load on a HTTP protocol level and use one Selenium instance to check rendering speed while your application is under the load.

You can install WebDriver Sampler plugin using JMeter Plugins Manager.