blob: 566e0adc66b941ca12c3507647b0f33528641e0b [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/material.dart';
import 'package:flutter/rendering.dart';
import 'package:flutter_test/flutter_test.dart';
import '../rendering/rendering_tester.dart';
void main() {
testWidgets('ShrinkWrappingViewport respects clipBehavior', (WidgetTester tester) async {
Widget build(ShrinkWrappingViewport child) {
return Directionality(
textDirection: TextDirection.ltr,
child: child,
);
}
await tester.pumpWidget(build(
ShrinkWrappingViewport(
offset: ViewportOffset.zero(),
slivers: <Widget>[SliverToBoxAdapter(child: Container(height: 2000.0))],
),
));
// 1st, check that the render object has received the default clip behavior.
final RenderShrinkWrappingViewport renderObject = tester.allRenderObjects.whereType<RenderShrinkWrappingViewport>().first;
expect(renderObject.clipBehavior, equals(Clip.hardEdge));
// 2nd, check that the painting context has received the default clip behavior.
final TestClipPaintingContext context = TestClipPaintingContext();
renderObject.paint(context, Offset.zero);
expect(context.clipBehavior, equals(Clip.hardEdge));
// 3rd, pump a new widget to check that the render object can update its clip behavior.
await tester.pumpWidget(build(
ShrinkWrappingViewport(
offset: ViewportOffset.zero(),
slivers: <Widget>[SliverToBoxAdapter(child: Container(height: 2000.0))],
clipBehavior: Clip.antiAlias,
),
));
expect(renderObject.clipBehavior, equals(Clip.antiAlias));
// 4th, check that a non-default clip behavior can be sent to the painting context.
renderObject.paint(context, Offset.zero);
expect(context.clipBehavior, equals(Clip.antiAlias));
});
}