quartz/content/notes/how to set window size in flutter tests.md

id	title	notetype	date
d5301f90-a3bd-11ec-88d6-ef8182bb665f	how to set window size in flutter tests	feed	2022-03-14

void main() {

  final TestWidgetsFlutterBinding binding =
    TestWidgetsFlutterBinding.ensureInitialized();

  testWidgets("Basic layout test (mobile device)", (tester) async {
    binding.window.physicalSizeTestValue = Size(400, 200);
    binding.window.devicePixelRatioTestValue = 1.0;

    await tester.pumpWidget(new MyApp());

    expect(find.byType(MyHomePage), findsOneWidget);
    // etc.
  });
}

---

https://stackoverflow.com/questions/53706569/how-to-test-flutter-widgets-on-different-screen-sizes