widget_test.dart (1067B)
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 8 import 'package:flutter/material.dart'; 9 import 'package:flutter_test/flutter_test.dart'; 10 11 import 'package:sense_the_rhythm/main.dart'; 12 13 void main() { 14 testWidgets('Counter increments smoke test', (WidgetTester tester) async { 15 // Build our app and trigger a frame. 16 await tester.pumpWidget(const MyApp()); 17 18 // Verify that our counter starts at 0. 19 expect(find.text('0'), findsOneWidget); 20 expect(find.text('1'), findsNothing); 21 22 // Tap the '+' icon and trigger a frame. 23 await tester.tap(find.byIcon(Icons.add)); 24 await tester.pump(); 25 26 // Verify that our counter has incremented. 27 expect(find.text('0'), findsNothing); 28 expect(find.text('1'), findsOneWidget); 29 }); 30 }