The popularity of iOS and iOS based devices such as iPhone, iPad, iPod and now the Apple Watch does not need to be certified. One of the reasons of the popularity is definitely an appealing and elegant User Interface. A good design of an application on any platform remains enticing if it is error and hassle free. It then goes without saying that the testing of User Interfaces is as important as any other areas of testing in an application.
Various routes can be adopted for User Interface Testing of iOS Applications
- Instruments Tool
- Integrating Tests into XCode
Keep It Functional, KIF is an iOS Integration Testing Framework. It writes UI test in Objective – C. The UI is then modified using an internal Apple API. No changes are needed in the app code to support KIF. Because KIF tests can be integrated into the XCTestCases, they provide integration into the Xcode testing itself and the tests can be run with other Unit Tests. These tests run both on simulators and devices and can be integrated with various Continuous Integration or CI tools. Since it is Open Source, regular modifications keep issues under check. The tests are written in Objective C and the iOS developers and the testing team does not have to put in extra efforts to learn a new language. On the other hand, since internal APIs are being used, if Apple brings any changes to these, KIF needs to change.
- Behavior Driven Designs for iOS
The Behavior Driven Designs for iOS can be achieved using Cucumber like Frank, Calaba and Zucchini or tools like Appium and the iOS Driver. A Cucumber is an open source behavior driven development (BDD) that works with Ruby, Java, .NET, Flex or web applications written in any language. The chief advantages of these are that all of these are Open Source and are in human readable formats. But they cannot be run together with other Unit Tests as they are all separate from Xcode. New languages might be needed to learn to implement these testing aids.
An intelligent team always weighs the pros and cons of each of these approaches of testing iOS applications before making a prudent choice. As any other technology, the options available for Developers and Quality Assurance teams for the testing tools for iOS based devices increase day by day.