Flutter: Add Unit Tests to Your App

In this video I show how to extract business logic from your apps into testable classes, and write unit tests in Flutter.

This is based on my Firebase authentication demo.

Highlights

• Review of TextFormField form validation
• Extract email and password validation code into separate classes
• Write simple unit tests
• Detecting and fixing failing tests

sponsor

Code with Andrea is free for everyone. Help me keep it that way by checking out this sponsor:

Level up your Flutter app’s performance. Get full visibility into your Flutter app’s performance, including crashes, exceptions in Dart, network health, custom traces, and more. Solve your trickiest issues, optimize user journeys, and wow your end users - again and again.

Notes:

• I'm using the iOS simulator, but you can open the Android emulator and run the same code.
• To run the code on the demo, follow the instructions on the project README file to setup your own Firebase instance.

This code was written with Flutter Beta 0.5.1, and is tested to work with Dart 2.

Thanks for watching!