samples/null_safety/null_unsafe_app/test/widget_test.dart

// This is a basic Flutter widget test.
//
// To perform an interaction with a widget in your test, use the WidgetTester
// utility that Flutter provides. For example, you can send tap and scroll
// gestures. You can also use WidgetTester to find child widgets in the widget
// tree, read text, and verify that the values of widget properties are correct.

import 'package:flutter_test/flutter_test.dart';

void main() {
  testWidgets('Rendering the page throws an exception', (tester) async {
    // Do nothing, running the app throws an exception on widget render.
  });
}