blob: f94f0a62b996006f2b3dd39a9944773fa2ec42e7 [file] [log] [blame]
// 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 'dart:ui';
import 'package:flutter/rendering.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:flutter/widgets.dart';
import 'semantics_tester.dart';
void main() {
testWidgets('Traversal Order of SliverList', (WidgetTester tester) async {
final SemanticsTester semantics = SemanticsTester(tester);
final List<Widget> listChildren = List<Widget>.generate(30, (int i) {
return Container(
height: 200.0,
child: Row(
crossAxisAlignment: CrossAxisAlignment.stretch,
children: <Widget>[
Semantics(
container: true,
child: Text('Item ${i}a'),
),
Semantics(
container: true,
child: Text('item ${i}b'),
),
],
),
);
});
await tester.pumpWidget(
Semantics(
textDirection: TextDirection.ltr,
child: Directionality(
textDirection: TextDirection.ltr,
child: MediaQuery(
data: const MediaQueryData(),
child: CustomScrollView(
controller: ScrollController(initialScrollOffset: 3000.0),
semanticChildCount: 30,
slivers: <Widget>[
SliverList(
delegate: SliverChildListDelegate(listChildren),
),
],
),
),
),
),
);
expect(semantics, hasSemantics(
TestSemantics.root(
children: <TestSemantics>[
TestSemantics(
textDirection: TextDirection.ltr,
children: <TestSemantics>[
TestSemantics(
children: <TestSemantics>[
TestSemantics(
scrollIndex: 15,
scrollChildren: 30,
flags: <SemanticsFlag>[
SemanticsFlag.hasImplicitScrolling,
],
actions: <SemanticsAction>[
SemanticsAction.scrollUp,
SemanticsAction.scrollDown,
],
children: <TestSemantics>[
TestSemantics(
flags: <SemanticsFlag>[SemanticsFlag.isHidden],
children: <TestSemantics>[
TestSemantics(
flags: <SemanticsFlag>[SemanticsFlag.isHidden],
label: 'Item 13a',
textDirection: TextDirection.ltr,
),
TestSemantics(
flags: <SemanticsFlag>[SemanticsFlag.isHidden],
label: 'item 13b',
textDirection: TextDirection.ltr,
),
],
),
TestSemantics(
flags: <SemanticsFlag>[SemanticsFlag.isHidden],
children: <TestSemantics>[
TestSemantics(
flags: <SemanticsFlag>[SemanticsFlag.isHidden],
label: 'Item 14a',
textDirection: TextDirection.ltr,
),
TestSemantics(
flags: <SemanticsFlag>[SemanticsFlag.isHidden],
label: 'item 14b',
textDirection: TextDirection.ltr,
),
],
),
TestSemantics(
children: <TestSemantics>[
TestSemantics(
label: 'Item 15a',
textDirection: TextDirection.ltr,
),
TestSemantics(
label: 'item 15b',
textDirection: TextDirection.ltr,
),
],
),
TestSemantics(
children: <TestSemantics>[
TestSemantics(
label: 'Item 16a',
textDirection: TextDirection.ltr,
),
TestSemantics(
label: 'item 16b',
textDirection: TextDirection.ltr,
),
],
),
TestSemantics(
children: <TestSemantics>[
TestSemantics(
label: 'Item 17a',
textDirection: TextDirection.ltr,
),
TestSemantics(
label: 'item 17b',
textDirection: TextDirection.ltr,
),
],
),
TestSemantics(
flags: <SemanticsFlag>[SemanticsFlag.isHidden],
children: <TestSemantics>[
TestSemantics(
flags: <SemanticsFlag>[SemanticsFlag.isHidden],
label: 'Item 18a',
textDirection: TextDirection.ltr,
),
TestSemantics(
flags: <SemanticsFlag>[SemanticsFlag.isHidden],
label: 'item 18b',
textDirection: TextDirection.ltr,
),
],
),
TestSemantics(
flags: <SemanticsFlag>[SemanticsFlag.isHidden],
children: <TestSemantics>[
TestSemantics(
flags: <SemanticsFlag>[SemanticsFlag.isHidden],
label: 'Item 19a',
textDirection: TextDirection.ltr,
),
TestSemantics(
flags: <SemanticsFlag>[SemanticsFlag.isHidden],
label: 'item 19b',
textDirection: TextDirection.ltr,
),
],
),
],
),
],
),
],
),
],
),
childOrder: DebugSemanticsDumpOrder.traversalOrder,
ignoreId: true,
ignoreTransform: true,
ignoreRect: true,
));
semantics.dispose();
});
testWidgets('Traversal Order of SliverFixedExtentList', (WidgetTester tester) async {
final SemanticsTester semantics = SemanticsTester(tester);
final List<Widget> listChildren = List<Widget>.generate(30, (int i) {
return Container(
height: 200.0,
child: Row(
crossAxisAlignment: CrossAxisAlignment.stretch,
children: <Widget>[
Semantics(
container: true,
child: Text('Item ${i}a'),
),
Semantics(
container: true,
child: Text('item ${i}b'),
),
],
),
);
});
await tester.pumpWidget(
Semantics(
textDirection: TextDirection.ltr,
child: Directionality(
textDirection: TextDirection.ltr,
child: MediaQuery(
data: const MediaQueryData(),
child: CustomScrollView(
controller: ScrollController(initialScrollOffset: 3000.0),
slivers: <Widget>[
SliverFixedExtentList(
itemExtent: 200.0,
delegate: SliverChildListDelegate(listChildren, addSemanticIndexes: false),
),
],
),
),
),
),
);
expect(semantics, hasSemantics(
TestSemantics.root(
children: <TestSemantics>[
TestSemantics(
textDirection: TextDirection.ltr,
children: <TestSemantics>[
TestSemantics(
children: <TestSemantics>[
TestSemantics(
flags: <SemanticsFlag>[
SemanticsFlag.hasImplicitScrolling,
],
actions: <SemanticsAction>[
SemanticsAction.scrollUp,
SemanticsAction.scrollDown,
],
children: <TestSemantics>[
TestSemantics(
flags: <SemanticsFlag>[SemanticsFlag.isHidden],
label: 'Item 13a',
textDirection: TextDirection.ltr,
),
TestSemantics(
flags: <SemanticsFlag>[SemanticsFlag.isHidden],
label: 'item 13b',
textDirection: TextDirection.ltr,
),
TestSemantics(
flags: <SemanticsFlag>[SemanticsFlag.isHidden],
label: 'Item 14a',
textDirection: TextDirection.ltr,
),
TestSemantics(
flags: <SemanticsFlag>[SemanticsFlag.isHidden],
label: 'item 14b',
textDirection: TextDirection.ltr,
),
TestSemantics(
label: 'Item 15a',
textDirection: TextDirection.ltr,
),
TestSemantics(
label: 'item 15b',
textDirection: TextDirection.ltr,
),
TestSemantics(
label: 'Item 16a',
textDirection: TextDirection.ltr,
),
TestSemantics(
label: 'item 16b',
textDirection: TextDirection.ltr,
),
TestSemantics(
label: 'Item 17a',
textDirection: TextDirection.ltr,
),
TestSemantics(
label: 'item 17b',
textDirection: TextDirection.ltr,
),
TestSemantics(
flags: <SemanticsFlag>[SemanticsFlag.isHidden],
label: 'Item 18a',
textDirection: TextDirection.ltr,
),
TestSemantics(
flags: <SemanticsFlag>[SemanticsFlag.isHidden],
label: 'item 18b',
textDirection: TextDirection.ltr,
),
TestSemantics(
flags: <SemanticsFlag>[SemanticsFlag.isHidden],
label: 'Item 19a',
textDirection: TextDirection.ltr,
),
TestSemantics(
flags: <SemanticsFlag>[SemanticsFlag.isHidden],
label: 'item 19b',
textDirection: TextDirection.ltr,
),
],
),
],
),
],
),
],
),
childOrder: DebugSemanticsDumpOrder.traversalOrder,
ignoreId: true,
ignoreTransform: true,
ignoreRect: true,
));
semantics.dispose();
});
testWidgets('Traversal Order of SliverGrid', (WidgetTester tester) async {
final SemanticsTester semantics = SemanticsTester(tester);
final List<Widget> listChildren = List<Widget>.generate(30, (int i) {
return Container(
height: 200.0,
child: Text('Item $i'),
);
});
await tester.pumpWidget(
Semantics(
textDirection: TextDirection.ltr,
child: Directionality(
textDirection: TextDirection.ltr,
child: MediaQuery(
data: const MediaQueryData(),
child: CustomScrollView(
controller: ScrollController(initialScrollOffset: 1600.0),
slivers: <Widget>[
SliverGrid.count(
crossAxisCount: 2,
crossAxisSpacing: 400.0,
children: listChildren,
),
],
),
),
),
),
);
expect(semantics, hasSemantics(
TestSemantics.root(
children: <TestSemantics>[
TestSemantics(
textDirection: TextDirection.ltr,
children: <TestSemantics>[
TestSemantics(
children: <TestSemantics>[
TestSemantics(
flags: <SemanticsFlag>[
SemanticsFlag.hasImplicitScrolling,
],
actions: <SemanticsAction>[
SemanticsAction.scrollUp,
SemanticsAction.scrollDown,
],
children: <TestSemantics>[
TestSemantics(
flags: <SemanticsFlag>[SemanticsFlag.isHidden],
label: 'Item 12',
textDirection: TextDirection.ltr,
),
TestSemantics(
flags: <SemanticsFlag>[SemanticsFlag.isHidden],
label: 'Item 13',
textDirection: TextDirection.ltr,
),
TestSemantics(
flags: <SemanticsFlag>[SemanticsFlag.isHidden],
label: 'Item 14',
textDirection: TextDirection.ltr,
),
TestSemantics(
flags: <SemanticsFlag>[SemanticsFlag.isHidden],
label: 'Item 15',
textDirection: TextDirection.ltr,
),
TestSemantics(
label: 'Item 16',
textDirection: TextDirection.ltr,
),
TestSemantics(
label: 'Item 17',
textDirection: TextDirection.ltr,
),
TestSemantics(
label: 'Item 18',
textDirection: TextDirection.ltr,
),
TestSemantics(
label: 'Item 19',
textDirection: TextDirection.ltr,
),
TestSemantics(
label: 'Item 20',
textDirection: TextDirection.ltr,
),
TestSemantics(
label: 'Item 21',
textDirection: TextDirection.ltr,
),
TestSemantics(
flags: <SemanticsFlag>[SemanticsFlag.isHidden],
label: 'Item 22',
textDirection: TextDirection.ltr,
),
TestSemantics(
flags: <SemanticsFlag>[SemanticsFlag.isHidden],
label: 'Item 23',
textDirection: TextDirection.ltr,
),
TestSemantics(
flags: <SemanticsFlag>[SemanticsFlag.isHidden],
label: 'Item 24',
textDirection: TextDirection.ltr,
),
TestSemantics(
flags: <SemanticsFlag>[SemanticsFlag.isHidden],
label: 'Item 25',
textDirection: TextDirection.ltr,
),
],
),
],
),
],
),
],
),
childOrder: DebugSemanticsDumpOrder.traversalOrder,
ignoreId: true,
ignoreTransform: true,
ignoreRect: true,
));
semantics.dispose();
});
testWidgets('Traversal Order of List of individual slivers', (WidgetTester tester) async {
final SemanticsTester semantics = SemanticsTester(tester);
final List<Widget> listChildren = List<Widget>.generate(30, (int i) {
return SliverToBoxAdapter(
child: Container(
height: 200.0,
child: Row(
crossAxisAlignment: CrossAxisAlignment.stretch,
children: <Widget>[
Semantics(
container: true,
child: Text('Item ${i}a'),
),
Semantics(
container: true,
child: Text('item ${i}b'),
),
],
),
),
);
});
await tester.pumpWidget(
Semantics(
textDirection: TextDirection.ltr,
child: Directionality(
textDirection: TextDirection.ltr,
child: MediaQuery(
data: const MediaQueryData(),
child: CustomScrollView(
controller: ScrollController(initialScrollOffset: 3000.0),
slivers: listChildren,
),
),
),
),
);
expect(semantics, hasSemantics(
TestSemantics.root(
children: <TestSemantics>[
TestSemantics(
textDirection: TextDirection.ltr,
children: <TestSemantics>[
TestSemantics(
children: <TestSemantics>[
TestSemantics(
flags: <SemanticsFlag>[
SemanticsFlag.hasImplicitScrolling,
],
actions: <SemanticsAction>[
SemanticsAction.scrollUp,
SemanticsAction.scrollDown,
],
children: <TestSemantics>[
TestSemantics(
flags: <SemanticsFlag>[SemanticsFlag.isHidden],
label: 'Item 13a',
textDirection: TextDirection.ltr,
),
TestSemantics(
flags: <SemanticsFlag>[SemanticsFlag.isHidden],
label: 'item 13b',
textDirection: TextDirection.ltr,
),
TestSemantics(
flags: <SemanticsFlag>[SemanticsFlag.isHidden],
label: 'Item 14a',
textDirection: TextDirection.ltr,
),
TestSemantics(
flags: <SemanticsFlag>[SemanticsFlag.isHidden],
label: 'item 14b',
textDirection: TextDirection.ltr,
),
TestSemantics(
label: 'Item 15a',
textDirection: TextDirection.ltr,
),
TestSemantics(
label: 'item 15b',
textDirection: TextDirection.ltr,
),
TestSemantics(
label: 'Item 16a',
textDirection: TextDirection.ltr,
),
TestSemantics(
label: 'item 16b',
textDirection: TextDirection.ltr,
),
TestSemantics(
label: 'Item 17a',
textDirection: TextDirection.ltr,
),
TestSemantics(
label: 'item 17b',
textDirection: TextDirection.ltr,
),
TestSemantics(
flags: <SemanticsFlag>[SemanticsFlag.isHidden],
label: 'Item 18a',
textDirection: TextDirection.ltr,
),
TestSemantics(
flags: <SemanticsFlag>[SemanticsFlag.isHidden],
label: 'item 18b',
textDirection: TextDirection.ltr,
),
TestSemantics(
flags: <SemanticsFlag>[SemanticsFlag.isHidden],
label: 'Item 19a',
textDirection: TextDirection.ltr,
),
TestSemantics(
flags: <SemanticsFlag>[SemanticsFlag.isHidden],
label: 'item 19b',
textDirection: TextDirection.ltr,
),
],
),
],
),
],
),
],
),
childOrder: DebugSemanticsDumpOrder.traversalOrder,
ignoreId: true,
ignoreTransform: true,
ignoreRect: true,
));
semantics.dispose();
});
testWidgets('Traversal Order of in a SingleChildScrollView', (WidgetTester tester) async {
final SemanticsTester semantics = SemanticsTester(tester);
final List<Widget> listChildren = List<Widget>.generate(30, (int i) {
return Container(
height: 200.0,
child: Row(
crossAxisAlignment: CrossAxisAlignment.stretch,
children: <Widget>[
Semantics(
container: true,
child: Text('Item ${i}a'),
),
Semantics(
container: true,
child: Text('item ${i}b'),
),
],
),
);
});
await tester.pumpWidget(
Semantics(
textDirection: TextDirection.ltr,
child: Directionality(
textDirection: TextDirection.ltr,
child: MediaQuery(
data: const MediaQueryData(),
child: SingleChildScrollView(
controller: ScrollController(initialScrollOffset: 3000.0),
child: Column(
children: listChildren,
),
),
),
),
),
);
expect(semantics, hasSemantics(
TestSemantics.root(
children: <TestSemantics>[
TestSemantics(
textDirection: TextDirection.ltr,
children: <TestSemantics>[
TestSemantics(
flags: <SemanticsFlag>[
SemanticsFlag.hasImplicitScrolling,
],
actions: <SemanticsAction>[
SemanticsAction.scrollUp,
SemanticsAction.scrollDown,
],
children: <TestSemantics>[
TestSemantics(
flags: <SemanticsFlag>[SemanticsFlag.isHidden],
label: 'Item 13a',
textDirection: TextDirection.ltr,
),
TestSemantics(
flags: <SemanticsFlag>[SemanticsFlag.isHidden],
label: 'item 13b',
textDirection: TextDirection.ltr,
),
TestSemantics(
flags: <SemanticsFlag>[SemanticsFlag.isHidden],
label: 'Item 14a',
textDirection: TextDirection.ltr,
),
TestSemantics(
flags: <SemanticsFlag>[SemanticsFlag.isHidden],
label: 'item 14b',
textDirection: TextDirection.ltr,
),
TestSemantics(
label: 'Item 15a',
textDirection: TextDirection.ltr,
),
TestSemantics(
label: 'item 15b',
textDirection: TextDirection.ltr,
),
TestSemantics(
label: 'Item 16a',
textDirection: TextDirection.ltr,
),
TestSemantics(
label: 'item 16b',
textDirection: TextDirection.ltr,
),
TestSemantics(
label: 'Item 17a',
textDirection: TextDirection.ltr,
),
TestSemantics(
label: 'item 17b',
textDirection: TextDirection.ltr,
),
TestSemantics(
flags: <SemanticsFlag>[SemanticsFlag.isHidden],
label: 'Item 18a',
textDirection: TextDirection.ltr,
),
TestSemantics(
flags: <SemanticsFlag>[SemanticsFlag.isHidden],
label: 'item 18b',
textDirection: TextDirection.ltr,
),
TestSemantics(
flags: <SemanticsFlag>[SemanticsFlag.isHidden],
label: 'Item 19a',
textDirection: TextDirection.ltr,
),
TestSemantics(
flags: <SemanticsFlag>[SemanticsFlag.isHidden],
label: 'item 19b',
textDirection: TextDirection.ltr,
),
],
),
],
),
],
),
childOrder: DebugSemanticsDumpOrder.traversalOrder,
ignoreId: true,
ignoreTransform: true,
ignoreRect: true,
));
semantics.dispose();
});
testWidgets('Traversal Order with center child', (WidgetTester tester) async {
final SemanticsTester semantics = SemanticsTester(tester);
await tester.pumpWidget(Semantics(
textDirection: TextDirection.ltr,
child: Directionality(
textDirection: TextDirection.ltr,
child: MediaQuery(
data: const MediaQueryData(),
child: Scrollable(
viewportBuilder: (BuildContext context, ViewportOffset offset) {
return Viewport(
offset: offset,
center: const ValueKey<int>(0),
slivers: List<Widget>.generate(30, (int i) {
final int item = i - 15;
return SliverToBoxAdapter(
key: ValueKey<int>(item),
child: Container(
height: 200.0,
child: Row(
crossAxisAlignment: CrossAxisAlignment.stretch,
children: <Widget>[
Semantics(
container: true,
child: Text('${item}a'),
),
Semantics(
container: true,
child: Text('${item}b'),
),
],
),
),
);
}),
);
},
),
),
),
));
expect(semantics, hasSemantics(
TestSemantics.root(
children: <TestSemantics>[
TestSemantics(
textDirection: TextDirection.ltr,
children: <TestSemantics>[
TestSemantics(
children: <TestSemantics>[
TestSemantics(
flags: <SemanticsFlag>[
SemanticsFlag.hasImplicitScrolling,
],
actions: <SemanticsAction>[
SemanticsAction.scrollUp,
SemanticsAction.scrollDown,
],
children: <TestSemantics>[
TestSemantics(
flags: <SemanticsFlag>[SemanticsFlag.isHidden],
label: '-2a',
textDirection: TextDirection.ltr,
),
TestSemantics(
flags: <SemanticsFlag>[SemanticsFlag.isHidden],
label: '-2b',
textDirection: TextDirection.ltr,
),
TestSemantics(
flags: <SemanticsFlag>[SemanticsFlag.isHidden],
label: '-1a',
textDirection: TextDirection.ltr,
),
TestSemantics(
flags: <SemanticsFlag>[SemanticsFlag.isHidden],
label: '-1b',
textDirection: TextDirection.ltr,
),
TestSemantics(
label: '0a',
textDirection: TextDirection.ltr,
),
TestSemantics(
label: '0b',
textDirection: TextDirection.ltr,
),
TestSemantics(
label: '1a',
textDirection: TextDirection.ltr,
),
TestSemantics(
label: '1b',
textDirection: TextDirection.ltr,
),
TestSemantics(
label: '2a',
textDirection: TextDirection.ltr,
),
TestSemantics(
label: '2b',
textDirection: TextDirection.ltr,
),
TestSemantics(
flags: <SemanticsFlag>[SemanticsFlag.isHidden],
label: '3a',
textDirection: TextDirection.ltr,
),
TestSemantics(
flags: <SemanticsFlag>[SemanticsFlag.isHidden],
label: '3b',
textDirection: TextDirection.ltr,
),
TestSemantics(
flags: <SemanticsFlag>[SemanticsFlag.isHidden],
label: '4a',
textDirection: TextDirection.ltr,
),
TestSemantics(
flags: <SemanticsFlag>[SemanticsFlag.isHidden],
label: '4b',
textDirection: TextDirection.ltr,
),
],
),
],
),
],
),
],
),
ignoreRect: true,
ignoreTransform: true,
ignoreId: true,
));
semantics.dispose();
});
}