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// 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/widgets.dart';
import 'package:flutter_test/flutter_test.dart';
import 'semantics_tester.dart';
void main() {
testWidgets('SemanticNode.rect is clipped', (WidgetTester tester) async {
final SemanticsTester semantics = SemanticsTester(tester);
await tester.pumpWidget(const Directionality(
textDirection: TextDirection.ltr,
child: Center(
child: SizedBox(
width: 100.0,
child: Flex(
clipBehavior: Clip.hardEdge,
direction: Axis.horizontal,
children: <Widget>[
SizedBox(
width: 75.0,
child: Text('1'),
),
SizedBox(
width: 75.0,
child: Text('2'),
),
SizedBox(
width: 75.0,
child: Text('3'),
),
],
),
),
),
));
final dynamic exception = tester.takeException();
expect(exception, isFlutterError);
// ignore: avoid_dynamic_calls
expect(exception.diagnostics.first.level, DiagnosticLevel.summary);
// ignore: avoid_dynamic_calls
expect(exception.diagnostics.first.toString(), contains('overflowed'));
expect(semantics, hasSemantics(
TestSemantics.root(
children: <TestSemantics>[
TestSemantics(
label: '1',
rect: const Rect.fromLTRB(0.0, 0.0, 75.0, 14.0),
),
TestSemantics(
label: '2',
rect: const Rect.fromLTRB(0.0, 0.0, 25.0, 14.0), // clipped form original 75.0 to 25.0
),
// node with Text 3 not present.
],
),
ignoreTransform: true,
ignoreId: true,
));
semantics.dispose();
});
testWidgets('SemanticsNode is not removed if out of bounds and merged into something within bounds', (WidgetTester tester) async {
final SemanticsTester semantics = SemanticsTester(tester);
await tester.pumpWidget(const Directionality(
textDirection: TextDirection.ltr,
child: Center(
child: SizedBox(
width: 100.0,
child: Flex(
clipBehavior: Clip.hardEdge,
direction: Axis.horizontal,
children: <Widget>[
SizedBox(
width: 75.0,
child: Text('1'),
),
MergeSemantics(
child: Flex(
direction: Axis.horizontal,
children: <Widget>[
SizedBox(
width: 75.0,
child: Text('2'),
),
SizedBox(
width: 75.0,
child: Text('3'),
),
],
),
),
],
),
),
),
));
final dynamic exception = tester.takeException();
expect(exception, isFlutterError);
// ignore: avoid_dynamic_calls
expect(exception.diagnostics.first.level, DiagnosticLevel.summary);
// ignore: avoid_dynamic_calls
expect(exception.diagnostics.first.toString(), contains('overflowed'));
expect(semantics, hasSemantics(
TestSemantics.root(
children: <TestSemantics>[
TestSemantics(
label: '1',
rect: const Rect.fromLTRB(0.0, 0.0, 75.0, 14.0),
),
TestSemantics(
label: '2\n3',
rect: const Rect.fromLTRB(0.0, 0.0, 25.0, 14.0), // clipped form original 75.0 to 25.0
),
],
),
ignoreTransform: true,
ignoreId: true,
));
semantics.dispose();
});
}