61 lines
1.3 KiB
Dart
61 lines
1.3 KiB
Dart
// Copyright 2014 The Flutter Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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import 'package:flutter/foundation.dart';
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import 'package:flutter/rendering.dart';
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import 'package:flutter_test/flutter_test.dart';
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import 'rendering_tester.dart';
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class RealRoot extends AbstractNode {
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RealRoot(this.child) {
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adoptChild(child);
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}
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final RenderObject child;
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@override
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void redepthChildren() {
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redepthChild(child);
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}
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@override
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void attach(Object owner) {
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super.attach(owner);
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child.attach(owner as PipelineOwner);
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}
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@override
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void detach() {
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super.detach();
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child.detach();
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}
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@override
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PipelineOwner? get owner => super.owner as PipelineOwner?;
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void layout() {
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child.layout(BoxConstraints.tight(const Size(500.0, 500.0)));
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}
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}
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void main() {
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test('non-RenderObject roots', () {
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RenderPositionedBox child;
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final RealRoot root = RealRoot(
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child = RenderPositionedBox(
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alignment: Alignment.center,
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child: RenderSizedBox(const Size(100.0, 100.0)),
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),
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);
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root.attach(PipelineOwner());
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child.scheduleInitialLayout();
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root.layout();
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child.markNeedsLayout();
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root.layout();
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});
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}
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