Integrating Performance Testing into the Agile Development Process

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organizations have stated that the latest releases of StressTester™ are suitable for adoption into Agile projects; the time to configure and execute performance tests has been reduced from weeks to hours.

So let’s look at StressTester™ in action and see how it helps the Agile project team configure and execute performance tests, and understand the causes for any performance problems, with no specialist tool experience and minimal associated effort.

No test scripts! Everything you need to do to correctly simulate real world users interacting with your software is configured within a single innovative GUI and you are never required to write a single line of test script.

The GUI is split into four workspaces. The majority of the time saving compared to traditional tools is in the User Journey workspace (a User Journey is a simulated business transaction) as there is no need for any scripting.

In this workspace (see Figure-1) the GUI presents a tree view of the User Journey with icons depicting key information.

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Figure-1: Properties of a Step

Clicking on a step (a web page or a request within a web page) shows the details about the selected item (see Figure-2) represented as fields on a screen.

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Figure-2: Easy to Navigate Tree View.png

In-tool wizards exist for changing recorded data into parameters, selecting data from application responses to use in subsequent requests (e.g. the item from the search results your simulated user will view in more details), varying the user’s flow through the User Journey (there are three ways to check out of Amazon.com and if you did not simulate them all, your test would be incorrect and you may not discover hidden application performance defects) and many more commonly required features.

Easy to learn. The free online StressTester™ learning centre takes between 4 and 8 hours to complete and consists of various tutorials.

In addition, there are over 20 in-tool context sensitive ’Show Me’ videos; when on a screen and needing assistance, simply click the ‘Show Me’ button and a list of applicable videos is displayed (see Figure-3).

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Figure-3: In Tool Video Tutorials

You can then watch the video(s) of interest and will understand how to proceed with configuring your performance test.

Therefore, any member of the Agile team, after dedicating a few hours to follow the online learning center tutorials, can now start to configure and execute performance tests.

Quick to use. Adopting organizations state that it now takes days of effort to configure and execute a performance test as opposed to weeks when using traditional tools.

‘Days’ refers to full performance tests where no User Journeys already exist for the application. As you will be testing from the first iteration, the initial configuration is much shorter. Then, as your project proceeds through the iterations, you will maintain your User Journeys and probably should allow half a day’s effort per iteration to do so.

An example of time saving in action is when you need to extract data from an application response. In the example shown in Figure-4, the tester wishes to extract both a book id from a web page showing a list of books (so that the next step can request the details of a book) and the book name (which will be used to validate the response of the request and ensure the correct book’s details are returned).

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Figure-4: Extracting Data Values from a Response

Without any scripting, and with the ability to test the configuration without having to execute a performance test (using the ‘Run’ buttons shown), something that could take anywhere between 10 minutes to

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