KSE is a GUI oriented tool with built in features such as recording scenarios, object-spy, self-healing, integrated CI/CD and so on. It has a fixed project structure of folders which you cannot change, meaning you will find your way in every Katalon project. These points make Katalon an easy start for QA engineers with a less technical background. More experienced testers have the possibility to make their own scripts in groovy language, making it also a valuable option for them.
Creating test cases in Katalon can be done in 3 ways. The first way is by recording a scenario through the web recorder. When you are done recording, the scenario is translated to test objects and web actions. The second way is by doing the same steps, but manually through the GUI. Lastly, you can also create test cases by scripting, which is in groovy language. You can also use scripting to build your own custom keywords, POM, utils… etc.
Web actions in Katalon are named keywords. KSE has a pre-built set of keywords to simplify the creation of test cases. If this set of keywords is not sufficient for your project, Katalon offers the possibility to create your own custom keywords. These custom keywords are as well accessible through the GUI, making it again easier for the less technical testers to use.
As just said, when recording scenarios, Katalon wraps selectors of elements into test objects. These objects can contain multiple types of information; xpath, css, attributes and images. Depending on how much information has been put into it, the self-healing of Katalon will enable the script to keep on running, even if the front-end had some changes. This reduces the number of flaky tests.
Once you’re done with writing your test case, you can incorporate it in a test suite which is directly linked to the CI/CD tool of Katalon: TestOps. TestOps contains multiple tools, such as scheduling, reporting, monitoring your test, Jira integration… etc.
One of today’s challenges for automating web applications, is waiting for the web elements to be loaded on the page. Web applications are evolving every day, by becoming more and more asynchronous. Katalon offers a built-in feature, named “Smart Wait”. This feature enables automatic waiting for web elements, reducing the number of failing tests.
Every program has it plus sides and downsides. So, what exactly are the plus sides of Katalon? Why should or shouldn’t you use it?
The pros and cons taken into account we can conclude that KSE is good to use within smaller or medium organizations to quickly setup tests. TestOps removes the need of a third-party CI/CD tool. For bigger organizations with for example ERP applications, it will be more difficult to maintain. Due to variables not automatically updating, the way test object recognition works and lastly due to the performance issues when the project grows.
Written by Jarno Hermans and Ivan Viera Valdes
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