flutter_flutter/packages/flutter/test/widgets/annotated_region_test.dart
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---------

Co-authored-by: Kate Lovett <katelovett@google.com>
Co-authored-by: LongCatIsLooong <31859944+LongCatIsLooong@users.noreply.github.com>
2024-12-19 20:06:21 +00:00

38 lines
1.4 KiB
Dart

// 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('provides a value to the layer tree', (WidgetTester tester) async {
await tester.pumpWidget(
const AnnotatedRegion<int>(value: 1, child: SizedBox(width: 100.0, height: 100.0)),
);
final List<Layer> layers = tester.layers;
final AnnotatedRegionLayer<int> layer = layers.whereType<AnnotatedRegionLayer<int>>().first;
expect(layer.value, 1);
});
testWidgets('provides a value to the layer tree in a particular region', (
WidgetTester tester,
) async {
await tester.pumpWidget(
Transform.translate(
offset: const Offset(25.0, 25.0),
child: const AnnotatedRegion<int>(value: 1, child: SizedBox(width: 100.0, height: 100.0)),
),
);
int? result = RendererBinding.instance.renderView.debugLayer!.find<int>(
Offset(10.0 * tester.view.devicePixelRatio, 10.0 * tester.view.devicePixelRatio),
);
expect(result, null);
result = RendererBinding.instance.renderView.debugLayer!.find<int>(
Offset(50.0 * tester.view.devicePixelRatio, 50.0 * tester.view.devicePixelRatio),
);
expect(result, 1);
});
}