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https://docs.flutter.dev › testing › overview
Testing a widget involves multiple classes and requires a test environment that provides the appropriate widget lifecycle context For example the Widget being tested should be able to

https://docs.flutter.dev › cookbook › testing › widget › scrolling › index.html.md
Handle scrolling How to handle scrolling in a widget test Many apps feature lists of content from email clients to music apps and beyond To verify that lists contain the ex

https://docs.flutter.dev › cookbook › testing › widget › scrolling
How to handle scrolling in a widget test Now you can write a test In this example scroll through the list of items and verify that a particular item exists in the list The WidgetTester class

https://docs.flutter.dev › tools › widget-previewer
Learn how to use the Flutter Widget Previewer to see your widgets render in real time separate from your full app

https://docs.flutter.dev › cookbook › testing › widget › orientation
This test makes sure that the orientation is landscape and that only 3 columns of data appear in the app In test widget test dart inside of the Orientation group add the following test after

https://docs.flutter.dev › testing › integration-tests
The integration test package lets you Use the flutter drive command to run tests on a physical device or emulator Run on Firebase Test Lab to automate testing on a variety of devices

https://docs.flutter.dev › cookbook › testing › unit › mocking
Cookbook chevron right Testing chevron right Unit chevron right Mocking Mock dependencies using Mockito Use the Mockito package to mimic the behavior of services for testing

https://docs.flutter.dev › cookbook › testing › widget › tap-drag
Cookbook chevron right Testing chevron right Widget chevron right Tap drag and enter text Tap drag and enter text How to test widgets for user interaction

https://docs.flutter.dev › cookbook › testing › widget › finders
To locate widgets in a test environment use the Finder classes While it s possible to write your own Finder classes it s generally more convenient to locate widgets using the tools