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Adds tests to NestedScrollView examples (#148170)

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Part of #130459.
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derdilla 2024-05-21 18:35:04 +02:00 committed by GitHub
parent f7857057a7
commit 1635e6417d
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4 changed files with 91 additions and 3 deletions
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3
dev/bots/check_code_samples.dart
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@ -385,9 +385,6 @@ final Set<String> _knownMissingTests = <String>{
'examples/api/test/widgets/sliver/decorated_sliver.0_test.dart',
'examples/api/test/widgets/autofill/autofill_group.0_test.dart',
'examples/api/test/widgets/nested_scroll_view/nested_scroll_view_state.0_test.dart',
'examples/api/test/widgets/nested_scroll_view/nested_scroll_view.2_test.dart',
'examples/api/test/widgets/nested_scroll_view/nested_scroll_view.1_test.dart',
'examples/api/test/widgets/nested_scroll_view/nested_scroll_view.0_test.dart',
'examples/api/test/widgets/scroll_position/scroll_metrics_notification.0_test.dart',
'examples/api/test/widgets/media_query/media_query_data.system_gesture_insets.0_test.dart',
'examples/api/test/widgets/async/future_builder.0_test.dart',

44
examples/api/test/widgets/nested_scroll_view/nested_scroll_view.0_test.dart Normal file
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@ -0,0 +1,44 @@
// 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/nested_scroll_view/nested_scroll_view.0.dart' as example;
import 'package:flutter_test/flutter_test.dart';
void main() {
testWidgets('Shows all elements', (WidgetTester tester) async {
await tester.pumpWidget(const example.NestedScrollViewExampleApp());
expect(find.byType(NestedScrollView), findsOneWidget);
expect(find.byType(SliverAppBar), findsOneWidget);
expect(find.byType(TabBarView), findsOneWidget);
expect(find.byType(Tab), findsNWidgets(2));
expect(find.byType(CustomScrollView), findsAtLeast(1));
expect(find.text('Books'), findsOneWidget);
expect(find.text('Tab 1'), findsOneWidget);
expect(find.text('Tab 2'), findsOneWidget);
expect(find.text('Item 0'), findsOneWidget);
expect(find.text('Item 14'), findsNothing);
expect(find.text('Item 14', skipOffstage: false), findsOneWidget);
expect(find.textContaining(RegExp(r'Item \d\d?'), skipOffstage: false), findsAtLeast(15));
await tester.tap(find.text('Tab 2'));
await tester.pumpAndSettle();
expect(find.textContaining(RegExp(r'Item \d\d?'), skipOffstage: false), findsAtLeast(15));
});
testWidgets('Shrinks app bar on scroll', (WidgetTester tester) async {
await tester.pumpWidget(const example.NestedScrollViewExampleApp());
final double initialAppBarHeight = tester.getTopLeft(find.byType(TabBarView)).dy;
expect(find.text('Item 1'), findsOneWidget);
await tester.ensureVisible(find.text('Item 14', skipOffstage: false));
await tester.pump();
expect(find.text('Item 1'), findsNothing);
expect(
tester.getTopLeft(find.byType(TabBarView)).dy,
lessThan(initialAppBarHeight),
);
});
}

23
examples/api/test/widgets/nested_scroll_view/nested_scroll_view.1_test.dart Normal file
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@ -0,0 +1,23 @@
// 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/nested_scroll_view/nested_scroll_view.1.dart' as example;
import 'package:flutter_test/flutter_test.dart';
void main() {
testWidgets('Hides app bar after scrolling down', (WidgetTester tester) async {
await tester.pumpWidget(const example.NestedScrollViewExampleApp());
expect(find.text('Floating Nested SliverAppBar'), findsOneWidget);
expect(find.byType(NestedScrollView), findsOneWidget);
expect(find.text('Item 0'), findsOneWidget);
expect(find.text('Item 12'), findsNothing);
expect(find.text('Item 12', skipOffstage: false), findsOneWidget);
await tester.ensureVisible(find.text('Item 12', skipOffstage: false));
await tester.pump();
expect(find.text('Item 0'), findsNothing);
expect(find.text('Floating Nested SliverAppBar'), findsNothing);
});
}

24
examples/api/test/widgets/nested_scroll_view/nested_scroll_view.2_test.dart Normal file
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@ -0,0 +1,24 @@
// 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/gestures.dart';
import 'package:flutter/material.dart';
import 'package:flutter_api_samples/widgets/nested_scroll_view/nested_scroll_view.2.dart' as example;
import 'package:flutter_test/flutter_test.dart';
void main() {
testWidgets('Hides app bar after scrolling past first item', (WidgetTester tester) async {
await tester.pumpWidget(const example.NestedScrollViewExampleApp());
expect(find.text('Snapping Nested SliverAppBar'), findsOneWidget);
expect(find.byType(NestedScrollView), findsOneWidget);
expect(find.text('Item 0'), findsOneWidget);
while (find.text('Item 0').evaluate().isNotEmpty) {
await tester.sendEventToBinding(const PointerScrollEvent(scrollDelta: Offset(0.0, 1.0)));
await tester.pump();
}
expect(find.text('Snapping Nested SliverAppBar'), findsNothing);
});
}