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Add test for undo_history_controller.0.dart (#148205)

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Contributes to https://github.com/flutter/flutter/issues/130459

It adds test for `examples/api/test/widgets/undo_history/undo_history_controller.0_test.dart`.
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Valentin Vignal 2024-05-22 06:19:04 +08:00 committed by GitHub
parent 185a4c6415
commit 357bd65749
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2 changed files with 50 additions and 1 deletions
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1
dev/bots/check_code_samples.dart
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@ -420,7 +420,6 @@ final Set<String> _knownMissingTests = <String>{
'examples/api/test/widgets/notification_listener/notification.0_test.dart',
'examples/api/test/widgets/editable_text/text_editing_controller.0_test.dart',
'examples/api/test/widgets/editable_text/editable_text.on_changed.0_test.dart',
'examples/api/test/widgets/undo_history/undo_history_controller.0_test.dart',
'examples/api/test/widgets/overscroll_indicator/glowing_overscroll_indicator.1_test.dart',
'examples/api/test/widgets/overscroll_indicator/glowing_overscroll_indicator.0_test.dart',
'examples/api/test/widgets/tween_animation_builder/tween_animation_builder.0_test.dart',

50
examples/api/test/widgets/undo_history/undo_history_controller.0_test.dart Normal file
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@ -0,0 +1,50 @@
// Copyright 2014 The Flutter 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_api_samples/widgets/undo_history/undo_history_controller.0.dart' as example;
import 'package:flutter_test/flutter_test.dart';
void main() {
testWidgets('The undo history controller should undo and redo the history changes', (WidgetTester tester) async {
await tester.pumpWidget(
const example.UndoHistoryControllerExampleApp(),
);
// Equals to UndoHistoryState._kThrottleDuration.
const Duration kThrottleDuration = Duration(milliseconds: 500);
expect(find.byType(TextField), findsOne);
expect(find.widgetWithText(TextButton, 'Undo'), findsOne);
expect(find.widgetWithText(TextButton, 'Redo'), findsOne);
await tester.enterText(find.byType(TextField), '1st change');
await tester.pump(kThrottleDuration);
expect(find.text('1st change'), findsOne);
await tester.enterText(find.byType(TextField), '2nd change');
await tester.pump(kThrottleDuration);
expect(find.text('2nd change'), findsOne);
await tester.enterText(find.byType(TextField), '3rd change');
await tester.pump(kThrottleDuration);
expect(find.text('3rd change'), findsOne);
await tester.tap(find.text('Undo'));
await tester.pump();
expect(find.text('2nd change'), findsOne);
await tester.tap(find.text('Undo'));
await tester.pump();
expect(find.text('1st change'), findsOne);
await tester.tap(find.text('Redo'));
await tester.pump();
expect(find.text('2nd change'), findsOne);
await tester.tap(find.text('Redo'));
await tester.pump();
expect(find.text('3rd change'), findsOne);
});
}