A Practical Guide for iOS App Testing [with Code Examples]

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Andres Canal
Senior Full-stack Mobile Developer
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Originally published on Mar 13, 2020Last updated on Jan 17, 2024

Key Takeaways

What is iOS testing?

iOS testing is a process in which an iOS app is examined on real Apple devices. The objective is to validate performance for specific, real-world user actions, like installation time, visual appearance, UX/UI, functionality, load times, and compatibility across different OS versions.

How do you test iOS apps?

When testing iOS apps, it's crucial to consider three main types of testing: Unit Testing, Integration Testing, and Functional Testing. Unit Testing allows for the examination of specific functionalities, Integration Testing involves testing multiple components simultaneously, and Functional Testing assesses the app's overall performance and features.

What are the best iOS application testing practices followed?

When conducting iOS application testing, some of the best practices include:
- Understanding the app’s intended use cases and functionalities. This will help you design and perform your tests.
- Prioritize the user experience.
- Test in real-world scenarios.
- Monitor OS upgrades to proactively address functionality issues.
- Test iteratively, beginning in the early stages of your project.
- Break down app testing into smaller units to focus on specific functionalities.
- Test on real devices, not just emulators.