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The widget under test already contains a MaterialApp, so there's no need to wrap it again with one in the test. In fact, the additional MaterialApp could hide problems in the widget under test.
23 lines
733 B
Dart
23 lines
733 B
Dart
// Copyright 2014 The Flutter Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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import 'package:flutter_api_samples/material/dropdown/dropdown_button.0.dart' as example;
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import 'package:flutter_test/flutter_test.dart';
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void main() {
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testWidgets('Select an item from DropdownButton', (WidgetTester tester) async {
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await tester.pumpWidget(
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const example.DropdownButtonApp(),
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);
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expect(find.text('One'), findsOneWidget);
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await tester.tap(find.text('One'));
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await tester.pumpAndSettle();
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await tester.tap(find.text('Two').last);
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await tester.pumpAndSettle();
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expect(find.text('Two'), findsOneWidget);
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});
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}
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