widget_test.dart 1.0 KB

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  1. // This is a basic Flutter widget test.
  2. //
  3. // To perform an interaction with a widget in your test, use the WidgetTester
  4. // utility in the flutter_test package. For example, you can send tap and scroll
  5. // gestures. You can also use WidgetTester to find child widgets in the widget
  6. // tree, read text, and verify that the values of widget properties are correct.
  7. import 'package:flutter/material.dart';
  8. import 'package:flutter_test/flutter_test.dart';
  9. import 'package:flutter_provider_demo/main.dart';
  10. void main() {
  11. testWidgets('Counter increments smoke test', (WidgetTester tester) async {
  12. // Build our app and trigger a frame.
  13. await tester.pumpWidget(const MyApp());
  14. // Verify that our counter starts at 0.
  15. expect(find.text('0'), findsOneWidget);
  16. expect(find.text('1'), findsNothing);
  17. // Tap the '+' icon and trigger a frame.
  18. await tester.tap(find.byIcon(Icons.add));
  19. await tester.pump();
  20. // Verify that our counter has incremented.
  21. expect(find.text('0'), findsNothing);
  22. expect(find.text('1'), findsOneWidget);
  23. });
  24. }