anchor.diff:      await tester.tap(find.text('17'));
       await tester.pumpAndSettle();
       expect(_selectedDate, equals(DateTime(2016, DateTime.august, 17)));
  -  });
  +  }, skip: isWindows); // TODO(dnfield): these are flaky on Windows https://github.com/flutter/flutter#19696
   
     testWidgets('render picker with intrinsic dimensions', (WidgetTester tester) async {
       await tester.pumpWidget(
  
positive.code: void main() {
    group('showDatePicker', () {
      _tests();
    },
      // Skip on Windows because this test is quite flaky when run on Windows,
      // until https://github.com/flutter/flutter/issues/19696 is fixed.
      skip: isWindows || isBrowser,
    );
  }
  
  void _tests() {
  
negative.code:       ),
      );
      await tester.pump(const Duration(seconds: 5));
    }, skip: isWindows); // TODO(dnfield): these are flaky on Windows https://github.com/flutter/flutter#19696
  
    Future<void> preparePicker(WidgetTester tester, Future<void> callback(Future<DateTime> date)) async {
      BuildContext buttonContext;
  