// 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/rendering.dart'; import 'package:flutter/widgets.dart'; import 'package:flutter_test/flutter_test.dart'; import 'semantics_tester.dart'; void main() { setUp(() { debugResetSemanticsIdCounter(); }); testWidgets('MergeSemantics', (WidgetTester tester) async { final SemanticsTester semantics = SemanticsTester(tester); // not merged await tester.pumpWidget( Directionality( textDirection: TextDirection.ltr, child: Row( children: <Widget>[ Semantics( container: true, child: const Text('test1'), ), Semantics( container: true, child: const Text('test2'), ), ], ), ), ); expect(semantics, hasSemantics( TestSemantics.root( children: <TestSemantics>[ TestSemantics.rootChild( id: 1, label: 'test1', ), TestSemantics.rootChild( id: 2, label: 'test2', ), ], ), ignoreRect: true, ignoreTransform: true, )); // merged await tester.pumpWidget( Directionality( textDirection: TextDirection.ltr, child: MergeSemantics( child: Row( children: <Widget>[ Semantics( container: true, child: const Text('test1'), ), Semantics( container: true, child: const Text('test2'), ), ], ), ), ), ); expect(semantics, hasSemantics( TestSemantics.root( children: <TestSemantics>[ TestSemantics.rootChild( id: 3, label: 'test1\ntest2', ), ], ), ignoreRect: true, ignoreTransform: true, )); // not merged await tester.pumpWidget( Directionality( textDirection: TextDirection.ltr, child: Row( children: <Widget>[ Semantics( container: true, child: const Text('test1'), ), Semantics( container: true, child: const Text('test2'), ), ], ), ), ); expect(semantics, hasSemantics( TestSemantics.root( children: <TestSemantics>[ TestSemantics.rootChild(id: 6, label: 'test1'), TestSemantics.rootChild(id: 7, label: 'test2'), ], ), ignoreRect: true, ignoreTransform: true, )); semantics.dispose(); }); testWidgets('MergeSemantics works if other nodes are implicitly merged into its node', (WidgetTester tester) async { final SemanticsTester semantics = SemanticsTester(tester); await tester.pumpWidget( Directionality( textDirection: TextDirection.ltr, child: MergeSemantics( child: Semantics( selected: true, // this is implicitly merged into the MergeSemantics node child: Row( children: <Widget>[ Semantics( container: true, child: const Text('test1'), ), Semantics( container: true, child: const Text('test2'), ), ], ), ), ), ), ); expect(semantics, hasSemantics( TestSemantics.root( children: <TestSemantics>[ TestSemantics.rootChild( id: 1, flags: <SemanticsFlag>[ SemanticsFlag.isSelected, ], label: 'test1\ntest2', ), ], ), ignoreRect: true, ignoreTransform: true, )); semantics.dispose(); }); }