blob: 2f0f777a50c887f1fc2661e3fe3124d4c421ee87 [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 'package:flutter/rendering.dart';
import 'package:flutter/widgets.dart';
import 'package:flutter_test/flutter_test.dart';
void main() {
testWidgets('Tracks picture layers accurately when painting is interleaved with a pushLayer', (WidgetTester tester) async {
// Creates a RenderObject that will paint into multiple picture layers.
// Asserts that both layers get a handle, and that all layers get correctly
// released.
final GlobalKey key = GlobalKey();
await tester.pumpWidget(RepaintBoundary(
child: CustomPaint(
key: key,
painter: SimplePainter(),
foregroundPainter: SimplePainter(),
child: const RepaintBoundary(child: Placeholder()),
final List<Layer> layers = tester.binding.renderView.debugLayer!.depthFirstIterateChildren();
final RenderObject renderObject = key.currentContext!.findRenderObject()!;
for (final Layer layer in layers) {
expect(layer.debugDisposed, false);
await tester.pumpWidget(const SizedBox());
for (final Layer layer in layers) {
expect(layer.debugDisposed, true);
expect(renderObject.debugDisposed, true);
class SimplePainter extends CustomPainter {
void paint(Canvas canvas, Size size) {
bool shouldRepaint(SimplePainter oldDelegate) => true;