// Copyright 2015 The Chromium 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' show SemanticsFlags; import 'package:flutter/material.dart'; import 'package:flutter/widgets.dart'; import 'package:flutter_test/flutter_test.dart'; import 'semantics_tester.dart'; void main() { testWidgets('Semantics 3', (WidgetTester tester) async { SemanticsTester semantics = new SemanticsTester(tester); // implicit annotators await tester.pumpWidget( new Container( child: new Semantics( label: 'test', child: new Container( child: new Semantics( checked: true ) ) ) ) ); expect(semantics, hasSemantics( new TestSemantics( id: 0, flags: SemanticsFlags.hasCheckedState.index | SemanticsFlags.isChecked.index, label: 'test', ) )); // remove one await tester.pumpWidget( new Container( child: new Container( child: new Semantics( checked: true ) ) ) ); expect(semantics, hasSemantics( new TestSemantics( id: 0, flags: SemanticsFlags.hasCheckedState.index | SemanticsFlags.isChecked.index, ) )); // change what it says await tester.pumpWidget( new Container( child: new Container( child: new Semantics( label: 'test' ) ) ) ); expect(semantics, hasSemantics( new TestSemantics( id: 0, label: 'test', ) )); // add a node await tester.pumpWidget( new Container( child: new Semantics( checked: true, child: new Container( child: new Semantics( label: 'test' ) ) ) ) ); expect(semantics, hasSemantics( new TestSemantics( id: 0, flags: SemanticsFlags.hasCheckedState.index | SemanticsFlags.isChecked.index, label: 'test', ) )); int changeCount = 0; tester.binding.pipelineOwner.semanticsOwner.addListener(() { changeCount += 1; }); // make no changes await tester.pumpWidget( new Container( child: new Semantics( checked: true, child: new Container( child: new Semantics( label: 'test' ) ) ) ) ); expect(changeCount, 0); semantics.dispose(); }); }