Manual Tests are Only as Reliable as the Tester
As a skilled iOS engineer working on a popular app in the App Store, you follow best practices, are careful in the way that you write code, and always test your code manually before pushing it. And after conducting your last test in Xcode, and submitting the code change, your boss let’s you know that your build failed with an error that you never saw during your manual tests.
Automated Tests are the Key to Reliability
At Codal, we do everything in our power to make sure that this never happens. To support our iOS development ecosystem, which has many engineers and applications, we use Test Automation. Test Automation is a type of quality assurance testing that relies on predetermined conditions and test factors in order to generate a widely applicable, automated test that systematically checks a piece of software for correct functionality.
We believe that test automation is critical to the successful completion of any piece of software, and that’s why we’ve made it a part of our process for every project.
Projects without automated tests can become impossible to maintain as they grow in size, especially when multiple developers are involved. This is because, as you might imagine, the more a project grows in size, the more difficult it becomes to manually inspect it for perfect functionality.
Automated tests eliminate the human factor from QA—but only so long as the automated tests that have been designed by humans are well thought out.
There are two types of automated tests in iOS:
1) The Unit Test
Unit testing is the process of testing the smallest building blocks of an application, ensuring that they each function without error on their own. In the event of an error occurs during subsequent tests, unit testing helps to ensure that the issue doesn’t lie in the functionality of the modules themselves, but rather in the way that they communicate, for example. Here at Codal we use Apple’s XCTest framework for unit testing because it is the industry standard, and allows for functional, fundamental, boolean, equality, nil, and unconditional failure tests to be conducted automatically.
2) The UI Test
UI testing is a different beast altogether. Rather than focusing on the components that make up an app, UI tests assess the product as a whole, without any knowledge of how it was built. These tests can be automated with specialized tools that test the application through APIs that behave as a user might. Alternatively, a tester may repeatedly and manually perform a number of predetermined steps to visually verify the functionality of the application. Here at Codal, we use Apple’s UI Automation tool to perform UI testing, because it is a very powerful tool that lets developers automate tests of basic functionality, interactions, and system controls.
Want to implement automated tests, but don’t know how? Hire the experts at Codal to ensure your releases are always 100% reliable.
About Codal :
Codal is a UX design and development agency with a focus on blending an Agile process with the latest emerging technologies. Based in the heart of Chicago, we have a knack for bringing out the best in every brand that we work with. Our clientele has ranged from small business to enterprise, but our philosophy has always remained the same: to empower brand visibility and deliver the most elegant web and mobile solutions possible.