byWidget method
Finds widgets whose current widget is the instance given by the widget
argument.
Sample code
// Suppose there is a button created like this:
Widget myButton = const Button(
child: Text('Update')
);
// It can be found and tapped like this:
tester.tap(find.byWidget(myButton));
If the skipOffstage
argument is true (the default), then this skips
nodes that are Offstage or that are from inactive Routes.
Implementation
Finder byWidget(Widget widget, { bool skipOffstage = true }) => _ExactWidgetFinder(widget, skipOffstage: skipOffstage);