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samples/provider_counter/test/widget_test.dart

33 lines
1018 B

// Copyright 2019 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:provider/provider.dart';
import 'package:provider_counter/main.dart';
void main() {
testWidgets('Counter increments smoke test', (tester) async {
// Build our app, provide it with a model, and trigger a frame.
await tester.pumpWidget(
ChangeNotifierProvider(
create: (context) => Counter(),
child: MyApp(),
),
);
// Verify that our counter starts at 0.
expect(find.text('0'), findsOneWidget);
expect(find.text('1'), findsNothing);
// Tap the '+' icon and trigger a frame.
await tester.tap(find.byIcon(Icons.add));
await tester.pump();
// Verify that our counter has incremented.
expect(find.text('0'), findsNothing);
expect(find.text('1'), findsOneWidget);
});
}