58 lines
1.7 KiB
Dart
58 lines
1.7 KiB
Dart
// This is a basic Flutter widget test.
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//
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// To perform an interaction with a widget in your test, use the WidgetTester
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// utility in the flutter_test package. For example, you can send tap and scroll
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// gestures. You can also use WidgetTester to find child widgets in the widget
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// tree, read text, and verify that the values of widget properties are correct.
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import 'package:flutter/material.dart';
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import 'package:flutter_test/flutter_test.dart';
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// Use a local test app to avoid depending on external package imports
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// which may not exist in the test environment.
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class MyApp extends StatefulWidget {
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const MyApp({Key? key}) : super(key: key);
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@override
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State<MyApp> createState() => _MyAppState();
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}
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class _MyAppState extends State<MyApp> {
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int _counter = 0;
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void _increment() => setState(() => _counter++);
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@override
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Widget build(BuildContext context) {
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return MaterialApp(
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home: Scaffold(
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appBar: AppBar(title: const Text('Test App')),
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body: Center(child: Text('$_counter')),
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floatingActionButton: FloatingActionButton(
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onPressed: _increment,
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child: const Icon(Icons.add),
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),
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),
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);
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}
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}
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void main() {
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testWidgets('Counter increments smoke test', (WidgetTester tester) async {
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// Build our app and trigger a frame.
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await tester.pumpWidget(const MyApp());
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// Verify that our counter starts at 0.
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expect(find.text('0'), findsOneWidget);
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expect(find.text('1'), findsNothing);
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// Tap the '+' icon and trigger a frame.
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await tester.tap(find.byIcon(Icons.add));
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await tester.pump();
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// Verify that our counter has incremented.
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expect(find.text('0'), findsNothing);
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expect(find.text('1'), findsOneWidget);
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});
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}
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