Key Differences Between Functional and Non-Functional Testing in Android

When creating apps for Android, testing is really important. There are two main types of testing: functional and non-functional testing. Each one has its own job to do.

Functional Testing:

• What It Is: This type checks if the app works the way it’s supposed to, based on set requirements.
• What It Looks At: It looks at different parts like user interfaces, the connections that help the app talk to servers, databases, and security features.
• Different Types: There are several kinds of functional testing, including unit testing, integration testing, system testing, and acceptance testing.
• Interesting Fact: Research shows that about 70% of mistakes in apps happen because people misunderstand requirements. Functional testing helps catch these mistakes.

Non-Functional Testing:

• What It Is: This type focuses on how well the app works in ways that aren’t about just its features. It checks things like performance, how easy it is to use, reliability, and whether it meets certain standards.
• What It Looks At: Non-functional testing checks things like how the app performs under stress, how user-friendly it is, security checks, and whether it works well on different devices.
• Different Types: Popular types include load testing, stress testing, and scalability testing.
• Interesting Fact: A study by Google found that 53% of mobile users will leave an app if it takes more than 3 seconds to load. This shows how important performance testing is!

Conclusion:

Functional testing makes sure the app does its job correctly. Meanwhile, non-functional testing looks at how well the app works overall, including speed and reliability. Both types of testing are vital for creating a good-quality Android app that users will like. By paying attention to both kinds of testing, developers can reduce issues reported by users by about 30% after the app is launched.