Best Practices for Automated Software Testing

Maria Harts -
automated software testing
Illustration: © IoT For All

Engineers used to handle all software tests manually. Not only did that require human involvement, but it increased error risk and delayed the final product delivery. Although manual testing is still necessary for specific tasks, the automating testing process has become popular among developers. Automated software testing only requires humans to set the desired parameters in the chosen tool. The computer handles everything from there. This allows for processing large amounts of data at a higher pace while delivering immediate and intuitive reports. Thanks to automated testing, there’s no risk of error due to human eyes that might miss something. Compared to manual testing, which requires human participation and can cause bugs and errors, automated testing allows specialists to run error-prone tests which ensure unlimited reliable tests.

Best Practices

If you want to maximize the potential of automated software testing, you need to optimize the entire process. Let’s take a look at the best practices to follow for improved software testing automation.

#1: Pick an automation tool that suits your needs.

Forget about the one-size-fits-all formula. The secret lies in choosing a test automation environment suitable to your software testing needs. That process begins by establishing specific requirements, such as:

  • Platform and system compatibility: Some tools have limitations, such as supporting only Java or .NET applications. Others can only work on Windows but have performance issues on Mac. You might not mind those downsides, but perhaps you need maximum cross-platform support. That ultimately comes down to your needs.
  • Browser compatibility: What if you need the app to run on multiple browsers? You could benefit from a single test that performs the same on all browsers. This saves time you’d spend on rewriting the test.
  • The simplicity of creating tests: Having to learn a scripting language indicates there’s a steep learning curve for that tool. You need an automated testing solution that secures effortless test creation. Power features like joining separate tests or defining custom metrics could also be important.

#2: Consider having a staff member dedicated to automated software testing.

Unless you are a small team, it’s not wise to have one staff member doing multiple tasks. If you have someone who performs manual testing, consider promoting a staff member into an automation engineer. Depending on your company’s size, you could have an entire team dedicated to automated software testing and related tasks. A dedicated engineer is a guarantee there won’t be room for improvisation. It ensures you have an expert that knows how the tool works. You can rely on them to create tests quickly and maximizing the features offered by the utility.

#3: Start testing as early as possible and do it frequently.

Did you identify a unit ready for an automated test? If you’ve completed the code for a specific feature, don’t hesitate to run the test. It helps to identify and fix errors immediately. You will spend less time on resolving bugs and reduce the risk of more complex problems down the road. Apart from performing tests as early in the software development as possible, you also need optimal test frequency. If repeating a test won’t take much time and effort from the engineer, don’t hesitate to do it. A high frequency of running tests also ensures the product launch happens with as few problems as possible.

#4: Review tests and eliminate uncertainties.

The point of automated testing is to discover bugs and errors. If the test fails, it indicates a problem. Developers focus on identifying and resolving it to optimize the code. While that’s valid, the problem appears when there’s an inconsistency or a false result. If it’s a false negative (or positive), it means something is wrong with the test. That’s why you should review automated tests and update them as necessary.

#5: Don’t hesitate to add comments.

One engineer might create the test, while another one might be running it. If multiple team members get in touch with the code, don’t hesitate to add comments wherever you feel necessary. Nobody is a mind reader, and it can be hard to decipher what your goal was. Furthermore, you might not remember why you used that approach in a certain section a month ago. Comments are there to help, so use that to your advantage.

#6: Try to create tests resistant to UI adjustments.

The user interface often changes during the software development process. That could affect automated testing and results, which would be best to avoid. Some scripts could find an object with location coordinates. But if you change them in the UI, it will lead to failure because the script can’t locate the object. The alternative could lie in using original names for controls.

Investing in Automated Software Testing

It’s not easy to implement a test automation tool in the software development process. You’ll need one or more experts that will become adept at using the tool and creating tests. The tests created should suit your product’s needs and deliver reports that provide helpful information. Once you get skilled with test automation, you’ll realize how much time it saves. It enables you to stay on track and release the software as planned while discovering bugs and minimizing post-launch problems. All this guarantees that investing in test automation tools and optimizing them to your needs will be worth the effort.

Maria Harts, Functionize

Guest Writer
Guest Writer
Guest writers are IoT experts and enthusiasts interested in sharing their insights with the IoT industry through IoT For All.
Guest writers are IoT experts and enthusiasts interested in sharing their insights with the IoT industry through IoT For All.