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Add tests for scaffold messenger state (#152735)

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

It adds a test for
- `examples/api/lib/material/scaffold/scaffold_messenger_state.show_snack_bar.0.dart`
- `examples/api/lib/material/scaffold/scaffold_messenger_state.show_material_banner.0.dart`
This commit is contained in:
Valentin Vignal 2024-08-03 03:46:04 +08:00 committed by GitHub
parent 5c5b3c5796
commit b7997cba54
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3 changed files with 46 additions and 2 deletions
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2
dev/bots/check_code_samples.dart
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@ -320,8 +320,6 @@ final Set<String> _knownMissingTests = <String>{
'examples/api/test/material/platform_menu_bar/platform_menu_bar.0_test.dart',
'examples/api/test/material/flexible_space_bar/flexible_space_bar.0_test.dart',
'examples/api/test/material/selection_area/selection_area.0_test.dart',
'examples/api/test/material/scaffold/scaffold_messenger_state.show_material_banner.0_test.dart',
'examples/api/test/material/scaffold/scaffold_messenger_state.show_snack_bar.0_test.dart',
'examples/api/test/material/app_bar/sliver_app_bar.2_test.dart',
'examples/api/test/material/app_bar/sliver_app_bar.3_test.dart',
'examples/api/test/material/navigation_rail/navigation_rail.extended_animation.0_test.dart',

25
examples/api/test/material/scaffold/scaffold_messenger_state.show_material_banner.0_test.dart Normal file
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@ -0,0 +1,25 @@
// 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/material/scaffold/scaffold_messenger_state.show_material_banner.0.dart' as example;
import 'package:flutter_test/flutter_test.dart';
void main() {
testWidgets('Pressing the button should show a material banner', (WidgetTester tester) async {
await tester.pumpWidget(
const example.ShowMaterialBannerExampleApp(),
);
expect(find.widgetWithText(AppBar, 'ScaffoldMessengerState Sample'), findsOne);
await tester.tap(find.widgetWithText(OutlinedButton, 'Show MaterialBanner'));
await tester.pumpAndSettle();
expect(find.widgetWithText(MaterialBanner, 'This is a MaterialBanner'), findsOne);
expect(
find.descendant(of: find.byType(MaterialBanner), matching: find.widgetWithText(TextButton, 'DISMISS')),
findsOne,
);
});
}

21
examples/api/test/material/scaffold/scaffold_messenger_state.show_snack_bar.0_test.dart Normal file
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@ -0,0 +1,21 @@
// 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/material/scaffold/scaffold_messenger_state.show_snack_bar.0.dart' as example;
import 'package:flutter_test/flutter_test.dart';
void main() {
testWidgets('Pressing the button should display a snack bar', (WidgetTester tester) async {
await tester.pumpWidget(
const example.ShowSnackBarExampleApp(),
);
expect(find.widgetWithText(AppBar, 'ScaffoldMessengerState Sample'), findsOne);
await tester.tap(find.widgetWithText(OutlinedButton, 'Show SnackBar'));
await tester.pumpAndSettle();
expect(find.widgetWithText(SnackBar, 'A SnackBar has been shown.'), findsOne);
});
}