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Bumps the Dart version to 3.8 across the repo (excluding engine/src/flutter/third_party) and applies formatting updates from Dart 3.8. ## Pre-launch Checklist - [x] I read the [Contributor Guide] and followed the process outlined there for submitting PRs. - [x] I read the [Tree Hygiene] wiki page, which explains my responsibilities. - [x] I read and followed the [Flutter Style Guide], including [Features we expect every widget to implement]. - [x] I signed the [CLA]. - [ ] I listed at least one issue that this PR fixes in the description above. - [ ] I updated/added relevant documentation (doc comments with `///`). - [x] I added new tests to check the change I am making, or this PR is [test-exempt]. - [x] I followed the [breaking change policy] and added [Data Driven Fixes] where supported. - [x] All existing and new tests are passing. If you need help, consider asking for advice on the #hackers-new channel on [Discord]. <!-- Links --> [Contributor Guide]: https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#overview [Tree Hygiene]: https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md [test-exempt]: https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#tests [Flutter Style Guide]: https://github.com/flutter/flutter/blob/main/docs/contributing/Style-guide-for-Flutter-repo.md [Features we expect every widget to implement]: https://github.com/flutter/flutter/blob/main/docs/contributing/Style-guide-for-Flutter-repo.md#features-we-expect-every-widget-to-implement [CLA]: https://cla.developers.google.com/ [flutter/tests]: https://github.com/flutter/tests [breaking change policy]: https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#handling-breaking-changes [Discord]: https://github.com/flutter/flutter/blob/main/docs/contributing/Chat.md [Data Driven Fixes]: https://github.com/flutter/flutter/blob/main/docs/contributing/Data-driven-Fixes.md
665 lines
24 KiB
Dart
665 lines
24 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/gestures.dart';
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import 'package:flutter/material.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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class _MockRenderSliver extends RenderSliver {
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@override
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void performLayout() {
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geometry = const SliverGeometry(paintOrigin: 10, paintExtent: 10, maxPaintExtent: 10);
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}
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}
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Future<void> test(
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WidgetTester tester,
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double offset,
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EdgeInsetsGeometry padding,
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AxisDirection axisDirection,
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TextDirection textDirection,
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) {
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final ViewportOffset viewportOffset = ViewportOffset.fixed(offset);
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addTearDown(viewportOffset.dispose);
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return tester.pumpWidget(
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Directionality(
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textDirection: textDirection,
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child: Viewport(
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offset: viewportOffset,
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axisDirection: axisDirection,
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slivers: <Widget>[
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const SliverToBoxAdapter(
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child: SizedBox(width: 400.0, height: 400.0, child: Text('before')),
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),
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SliverPadding(
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padding: padding,
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sliver: const SliverToBoxAdapter(
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child: SizedBox(width: 400.0, height: 400.0, child: Text('padded')),
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),
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),
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const SliverToBoxAdapter(
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child: SizedBox(width: 400.0, height: 400.0, child: Text('after')),
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),
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],
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),
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),
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);
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}
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void verify(WidgetTester tester, List<Rect> answerKey) {
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final List<Rect> testAnswers = tester
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.renderObjectList<RenderBox>(find.byType(SizedBox, skipOffstage: false))
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.map<Rect>((RenderBox target) {
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final Offset topLeft = target.localToGlobal(Offset.zero);
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final Offset bottomRight = target.localToGlobal(target.size.bottomRight(Offset.zero));
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return Rect.fromPoints(topLeft, bottomRight);
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})
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.toList();
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expect(testAnswers, equals(answerKey));
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}
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void main() {
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testWidgets('Viewport+SliverPadding basic test (VISUAL)', (WidgetTester tester) async {
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const EdgeInsets padding = EdgeInsets.fromLTRB(25.0, 20.0, 15.0, 35.0);
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await test(tester, 0.0, padding, AxisDirection.down, TextDirection.ltr);
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expect(
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tester.renderObject<RenderBox>(find.byType(Viewport)).size,
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equals(const Size(800.0, 600.0)),
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);
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verify(tester, <Rect>[
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const Rect.fromLTWH(0.0, 0.0, 800.0, 400.0),
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const Rect.fromLTWH(25.0, 420.0, 760.0, 400.0),
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const Rect.fromLTWH(0.0, 855.0, 800.0, 400.0),
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]);
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await test(tester, 200.0, padding, AxisDirection.down, TextDirection.ltr);
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verify(tester, <Rect>[
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const Rect.fromLTWH(0.0, -200.0, 800.0, 400.0),
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const Rect.fromLTWH(25.0, 220.0, 760.0, 400.0),
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const Rect.fromLTWH(0.0, 655.0, 800.0, 400.0),
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]);
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await test(tester, 390.0, padding, AxisDirection.down, TextDirection.ltr);
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verify(tester, <Rect>[
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const Rect.fromLTWH(0.0, -390.0, 800.0, 400.0),
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const Rect.fromLTWH(25.0, 30.0, 760.0, 400.0),
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const Rect.fromLTWH(0.0, 465.0, 800.0, 400.0),
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]);
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await test(tester, 490.0, padding, AxisDirection.down, TextDirection.ltr);
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verify(tester, <Rect>[
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const Rect.fromLTWH(0.0, -490.0, 800.0, 400.0),
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const Rect.fromLTWH(25.0, -70.0, 760.0, 400.0),
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const Rect.fromLTWH(0.0, 365.0, 800.0, 400.0),
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]);
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await test(tester, 10000.0, padding, AxisDirection.down, TextDirection.ltr);
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verify(tester, <Rect>[
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const Rect.fromLTWH(0.0, -10000.0, 800.0, 400.0),
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const Rect.fromLTWH(25.0, -9580.0, 760.0, 400.0),
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const Rect.fromLTWH(0.0, -9145.0, 800.0, 400.0),
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]);
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});
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testWidgets('Viewport+SliverPadding basic test (LTR)', (WidgetTester tester) async {
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const EdgeInsetsDirectional padding = EdgeInsetsDirectional.fromSTEB(25.0, 20.0, 15.0, 35.0);
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await test(tester, 0.0, padding, AxisDirection.down, TextDirection.ltr);
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expect(
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tester.renderObject<RenderBox>(find.byType(Viewport)).size,
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equals(const Size(800.0, 600.0)),
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);
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verify(tester, <Rect>[
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const Rect.fromLTWH(0.0, 0.0, 800.0, 400.0),
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const Rect.fromLTWH(25.0, 420.0, 760.0, 400.0),
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const Rect.fromLTWH(0.0, 855.0, 800.0, 400.0),
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]);
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await test(tester, 200.0, padding, AxisDirection.down, TextDirection.ltr);
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verify(tester, <Rect>[
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const Rect.fromLTWH(0.0, -200.0, 800.0, 400.0),
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const Rect.fromLTWH(25.0, 220.0, 760.0, 400.0),
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const Rect.fromLTWH(0.0, 655.0, 800.0, 400.0),
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]);
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await test(tester, 390.0, padding, AxisDirection.down, TextDirection.ltr);
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verify(tester, <Rect>[
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const Rect.fromLTWH(0.0, -390.0, 800.0, 400.0),
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const Rect.fromLTWH(25.0, 30.0, 760.0, 400.0),
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const Rect.fromLTWH(0.0, 465.0, 800.0, 400.0),
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]);
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await test(tester, 490.0, padding, AxisDirection.down, TextDirection.ltr);
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verify(tester, <Rect>[
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const Rect.fromLTWH(0.0, -490.0, 800.0, 400.0),
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const Rect.fromLTWH(25.0, -70.0, 760.0, 400.0),
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const Rect.fromLTWH(0.0, 365.0, 800.0, 400.0),
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]);
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await test(tester, 10000.0, padding, AxisDirection.down, TextDirection.ltr);
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verify(tester, <Rect>[
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const Rect.fromLTWH(0.0, -10000.0, 800.0, 400.0),
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const Rect.fromLTWH(25.0, -9580.0, 760.0, 400.0),
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const Rect.fromLTWH(0.0, -9145.0, 800.0, 400.0),
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]);
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});
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testWidgets('Viewport+SliverPadding basic test (RTL)', (WidgetTester tester) async {
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const EdgeInsetsDirectional padding = EdgeInsetsDirectional.fromSTEB(25.0, 20.0, 15.0, 35.0);
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await test(tester, 0.0, padding, AxisDirection.down, TextDirection.rtl);
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expect(
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tester.renderObject<RenderBox>(find.byType(Viewport)).size,
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equals(const Size(800.0, 600.0)),
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);
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verify(tester, <Rect>[
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const Rect.fromLTWH(0.0, 0.0, 800.0, 400.0),
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const Rect.fromLTWH(15.0, 420.0, 760.0, 400.0),
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const Rect.fromLTWH(0.0, 855.0, 800.0, 400.0),
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]);
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await test(tester, 200.0, padding, AxisDirection.down, TextDirection.rtl);
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verify(tester, <Rect>[
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const Rect.fromLTWH(0.0, -200.0, 800.0, 400.0),
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const Rect.fromLTWH(15.0, 220.0, 760.0, 400.0),
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const Rect.fromLTWH(0.0, 655.0, 800.0, 400.0),
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]);
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await test(tester, 390.0, padding, AxisDirection.down, TextDirection.rtl);
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verify(tester, <Rect>[
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const Rect.fromLTWH(0.0, -390.0, 800.0, 400.0),
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const Rect.fromLTWH(15.0, 30.0, 760.0, 400.0),
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const Rect.fromLTWH(0.0, 465.0, 800.0, 400.0),
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]);
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await test(tester, 490.0, padding, AxisDirection.down, TextDirection.rtl);
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verify(tester, <Rect>[
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const Rect.fromLTWH(0.0, -490.0, 800.0, 400.0),
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const Rect.fromLTWH(15.0, -70.0, 760.0, 400.0),
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const Rect.fromLTWH(0.0, 365.0, 800.0, 400.0),
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]);
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await test(tester, 10000.0, padding, AxisDirection.down, TextDirection.rtl);
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verify(tester, <Rect>[
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const Rect.fromLTWH(0.0, -10000.0, 800.0, 400.0),
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const Rect.fromLTWH(15.0, -9580.0, 760.0, 400.0),
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const Rect.fromLTWH(0.0, -9145.0, 800.0, 400.0),
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]);
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});
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testWidgets('Viewport+SliverPadding hit testing', (WidgetTester tester) async {
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const EdgeInsets padding = EdgeInsets.all(30.0);
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await test(tester, 350.0, padding, AxisDirection.down, TextDirection.ltr);
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expect(
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tester.renderObject<RenderBox>(find.byType(Viewport)).size,
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equals(const Size(800.0, 600.0)),
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);
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verify(tester, <Rect>[
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const Rect.fromLTWH(0.0, -350.0, 800.0, 400.0),
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const Rect.fromLTWH(30.0, 80.0, 740.0, 400.0),
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const Rect.fromLTWH(0.0, 510.0, 800.0, 400.0),
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]);
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HitTestResult result;
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result = tester.hitTestOnBinding(const Offset(10.0, 10.0));
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hitsText(result, 'before');
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result = tester.hitTestOnBinding(const Offset(10.0, 60.0));
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expect(result.path.first.target, isA<RenderView>());
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result = tester.hitTestOnBinding(const Offset(100.0, 100.0));
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hitsText(result, 'padded');
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expect(result.path.any((HitTestEntry entry) => entry.target is RenderSliverPadding), isTrue);
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result = tester.hitTestOnBinding(const Offset(100.0, 490.0));
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expect(result.path.first.target, isA<RenderView>());
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result = tester.hitTestOnBinding(const Offset(10.0, 520.0));
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hitsText(result, 'after');
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});
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testWidgets('Viewport+SliverPadding hit testing up', (WidgetTester tester) async {
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const EdgeInsets padding = EdgeInsets.all(30.0);
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await test(tester, 350.0, padding, AxisDirection.up, TextDirection.ltr);
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expect(
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tester.renderObject<RenderBox>(find.byType(Viewport)).size,
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equals(const Size(800.0, 600.0)),
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);
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verify(tester, <Rect>[
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const Rect.fromLTWH(0.0, 600.0 + 350.0 - 400.0, 800.0, 400.0),
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const Rect.fromLTWH(30.0, 600.0 - 80.0 - 400.0, 740.0, 400.0),
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const Rect.fromLTWH(0.0, 600.0 - 510.0 - 400.0, 800.0, 400.0),
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]);
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HitTestResult result;
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result = tester.hitTestOnBinding(const Offset(10.0, 600.0 - 10.0));
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hitsText(result, 'before');
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result = tester.hitTestOnBinding(const Offset(10.0, 600.0 - 60.0));
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expect(result.path.first.target, isA<RenderView>());
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result = tester.hitTestOnBinding(const Offset(100.0, 600.0 - 100.0));
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hitsText(result, 'padded');
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result = tester.hitTestOnBinding(const Offset(100.0, 600.0 - 490.0));
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expect(result.path.first.target, isA<RenderView>());
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result = tester.hitTestOnBinding(const Offset(10.0, 600.0 - 520.0));
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hitsText(result, 'after');
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});
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testWidgets('Viewport+SliverPadding hit testing left', (WidgetTester tester) async {
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const EdgeInsets padding = EdgeInsets.all(30.0);
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await test(tester, 350.0, padding, AxisDirection.left, TextDirection.ltr);
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expect(
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tester.renderObject<RenderBox>(find.byType(Viewport)).size,
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equals(const Size(800.0, 600.0)),
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);
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verify(tester, <Rect>[
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const Rect.fromLTWH(800.0 + 350.0 - 400.0, 0.0, 400.0, 600.0),
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const Rect.fromLTWH(800.0 - 80.0 - 400.0, 30.0, 400.0, 540.0),
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const Rect.fromLTWH(800.0 - 510.0 - 400.0, 0.0, 400.0, 600.0),
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]);
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HitTestResult result;
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result = tester.hitTestOnBinding(const Offset(800.0 - 10.0, 10.0));
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hitsText(result, 'before');
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result = tester.hitTestOnBinding(const Offset(800.0 - 60.0, 10.0));
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expect(result.path.first.target, isA<RenderView>());
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result = tester.hitTestOnBinding(const Offset(800.0 - 100.0, 100.0));
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hitsText(result, 'padded');
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result = tester.hitTestOnBinding(const Offset(800.0 - 490.0, 100.0));
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expect(result.path.first.target, isA<RenderView>());
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result = tester.hitTestOnBinding(const Offset(800.0 - 520.0, 10.0));
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hitsText(result, 'after');
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});
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testWidgets('Viewport+SliverPadding hit testing right', (WidgetTester tester) async {
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const EdgeInsets padding = EdgeInsets.all(30.0);
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await test(tester, 350.0, padding, AxisDirection.right, TextDirection.ltr);
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expect(
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tester.renderObject<RenderBox>(find.byType(Viewport)).size,
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equals(const Size(800.0, 600.0)),
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);
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verify(tester, <Rect>[
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const Rect.fromLTWH(-350.0, 0.0, 400.0, 600.0),
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const Rect.fromLTWH(80.0, 30.0, 400.0, 540.0),
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const Rect.fromLTWH(510.0, 0.0, 400.0, 600.0),
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]);
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HitTestResult result;
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result = tester.hitTestOnBinding(const Offset(10.0, 10.0));
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hitsText(result, 'before');
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result = tester.hitTestOnBinding(const Offset(60.0, 10.0));
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expect(result.path.first.target, isA<RenderView>());
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result = tester.hitTestOnBinding(const Offset(100.0, 100.0));
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hitsText(result, 'padded');
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result = tester.hitTestOnBinding(const Offset(490.0, 100.0));
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expect(result.path.first.target, isA<RenderView>());
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result = tester.hitTestOnBinding(const Offset(520.0, 10.0));
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hitsText(result, 'after');
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});
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testWidgets('Viewport+SliverPadding no child', (WidgetTester tester) async {
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final ViewportOffset offset = ViewportOffset.fixed(0.0);
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addTearDown(offset.dispose);
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await tester.pumpWidget(
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Directionality(
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textDirection: TextDirection.ltr,
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child: Viewport(
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offset: offset,
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slivers: const <Widget>[
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SliverPadding(padding: EdgeInsets.all(100.0)),
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SliverToBoxAdapter(child: SizedBox(width: 400.0, height: 400.0, child: Text('x'))),
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],
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),
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),
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);
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expect(
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tester.renderObject<RenderBox>(find.text('x')).localToGlobal(Offset.zero),
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const Offset(0.0, 200.0),
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);
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});
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testWidgets('SliverPadding with no child reports correct geometry as scroll offset changes', (
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WidgetTester tester,
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) async {
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// Regression test for https://github.com/flutter/flutter/issues/64506
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final ScrollController controller = ScrollController();
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addTearDown(controller.dispose);
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await tester.pumpWidget(
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Directionality(
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textDirection: TextDirection.ltr,
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child: CustomScrollView(
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controller: controller,
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slivers: const <Widget>[
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SliverPadding(padding: EdgeInsets.all(100.0)),
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SliverToBoxAdapter(child: SizedBox(width: 400.0, height: 400.0, child: Text('x'))),
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],
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),
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),
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);
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expect(
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tester.renderObject<RenderBox>(find.text('x')).localToGlobal(Offset.zero),
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const Offset(0.0, 200.0),
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);
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expect(
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tester.renderObject<RenderSliverPadding>(find.byType(SliverPadding)).geometry!.paintExtent,
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200.0,
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);
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controller.jumpTo(50.0);
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await tester.pump();
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expect(
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tester.renderObject<RenderSliverPadding>(find.byType(SliverPadding)).geometry!.paintExtent,
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150.0,
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);
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});
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testWidgets('Viewport+SliverPadding changing padding', (WidgetTester tester) async {
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final ViewportOffset offset1 = ViewportOffset.fixed(0.0);
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addTearDown(offset1.dispose);
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await tester.pumpWidget(
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Directionality(
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textDirection: TextDirection.ltr,
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child: Viewport(
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axisDirection: AxisDirection.left,
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offset: offset1,
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slivers: const <Widget>[
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SliverPadding(padding: EdgeInsets.fromLTRB(90.0, 1.0, 110.0, 2.0)),
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SliverToBoxAdapter(child: SizedBox(width: 201.0, child: Text('x'))),
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],
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),
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),
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);
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expect(
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tester.renderObject<RenderBox>(find.text('x')).localToGlobal(Offset.zero),
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const Offset(399.0, 0.0),
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);
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final ViewportOffset offset2 = ViewportOffset.fixed(0.0);
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addTearDown(offset2.dispose);
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await tester.pumpWidget(
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Directionality(
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textDirection: TextDirection.ltr,
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child: Viewport(
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axisDirection: AxisDirection.left,
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offset: offset2,
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slivers: const <Widget>[
|
|
SliverPadding(padding: EdgeInsets.fromLTRB(110.0, 1.0, 80.0, 2.0)),
|
|
SliverToBoxAdapter(child: SizedBox(width: 201.0, child: Text('x'))),
|
|
],
|
|
),
|
|
),
|
|
);
|
|
|
|
expect(
|
|
tester.renderObject<RenderBox>(find.text('x')).localToGlobal(Offset.zero),
|
|
const Offset(409.0, 0.0),
|
|
);
|
|
});
|
|
|
|
testWidgets('Viewport+SliverPadding changing direction', (WidgetTester tester) async {
|
|
final ViewportOffset offset1 = ViewportOffset.fixed(0.0);
|
|
addTearDown(offset1.dispose);
|
|
|
|
await tester.pumpWidget(
|
|
Directionality(
|
|
textDirection: TextDirection.ltr,
|
|
child: Viewport(
|
|
axisDirection: AxisDirection.up,
|
|
offset: offset1,
|
|
slivers: const <Widget>[SliverPadding(padding: EdgeInsets.fromLTRB(1.0, 2.0, 4.0, 8.0))],
|
|
),
|
|
),
|
|
);
|
|
|
|
expect(tester.renderObject<RenderSliverPadding>(find.byType(SliverPadding)).afterPadding, 2.0);
|
|
|
|
final ViewportOffset offset2 = ViewportOffset.fixed(0.0);
|
|
addTearDown(offset2.dispose);
|
|
|
|
await tester.pumpWidget(
|
|
Directionality(
|
|
textDirection: TextDirection.ltr,
|
|
child: Viewport(
|
|
offset: offset2,
|
|
slivers: const <Widget>[SliverPadding(padding: EdgeInsets.fromLTRB(1.0, 2.0, 4.0, 8.0))],
|
|
),
|
|
),
|
|
);
|
|
|
|
expect(tester.renderObject<RenderSliverPadding>(find.byType(SliverPadding)).afterPadding, 8.0);
|
|
|
|
final ViewportOffset offset3 = ViewportOffset.fixed(0.0);
|
|
addTearDown(offset3.dispose);
|
|
|
|
await tester.pumpWidget(
|
|
Directionality(
|
|
textDirection: TextDirection.ltr,
|
|
child: Viewport(
|
|
axisDirection: AxisDirection.right,
|
|
offset: offset3,
|
|
slivers: const <Widget>[SliverPadding(padding: EdgeInsets.fromLTRB(1.0, 2.0, 4.0, 8.0))],
|
|
),
|
|
),
|
|
);
|
|
|
|
expect(tester.renderObject<RenderSliverPadding>(find.byType(SliverPadding)).afterPadding, 4.0);
|
|
|
|
final ViewportOffset offset4 = ViewportOffset.fixed(0.0);
|
|
addTearDown(offset4.dispose);
|
|
|
|
await tester.pumpWidget(
|
|
Directionality(
|
|
textDirection: TextDirection.ltr,
|
|
child: Viewport(
|
|
axisDirection: AxisDirection.left,
|
|
offset: offset4,
|
|
slivers: const <Widget>[SliverPadding(padding: EdgeInsets.fromLTRB(1.0, 2.0, 4.0, 8.0))],
|
|
),
|
|
),
|
|
);
|
|
|
|
expect(tester.renderObject<RenderSliverPadding>(find.byType(SliverPadding)).afterPadding, 1.0);
|
|
|
|
final ViewportOffset offset5 = ViewportOffset.fixed(99999.9);
|
|
addTearDown(offset5.dispose);
|
|
|
|
await tester.pumpWidget(
|
|
Directionality(
|
|
textDirection: TextDirection.ltr,
|
|
child: Viewport(
|
|
axisDirection: AxisDirection.left,
|
|
offset: offset5,
|
|
slivers: const <Widget>[SliverPadding(padding: EdgeInsets.fromLTRB(1.0, 2.0, 4.0, 8.0))],
|
|
),
|
|
),
|
|
);
|
|
|
|
expect(
|
|
tester
|
|
.renderObject<RenderSliverPadding>(find.byType(SliverPadding, skipOffstage: false))
|
|
.afterPadding,
|
|
1.0,
|
|
);
|
|
});
|
|
|
|
testWidgets('SliverPadding propagates geometry offset corrections', (WidgetTester tester) async {
|
|
Widget listBuilder(IndexedWidgetBuilder sliverChildBuilder) {
|
|
return Directionality(
|
|
textDirection: TextDirection.ltr,
|
|
child: CustomScrollView(
|
|
cacheExtent: 0.0,
|
|
slivers: <Widget>[
|
|
SliverPadding(
|
|
padding: EdgeInsets.zero,
|
|
sliver: SliverList(
|
|
delegate: SliverChildBuilderDelegate(sliverChildBuilder, childCount: 10),
|
|
),
|
|
),
|
|
],
|
|
),
|
|
);
|
|
}
|
|
|
|
await tester.pumpWidget(
|
|
listBuilder((BuildContext context, int index) {
|
|
return SizedBox(height: 200.0, child: Center(child: Text(index.toString())));
|
|
}),
|
|
);
|
|
|
|
await tester.drag(find.text('2'), const Offset(0.0, -300.0));
|
|
await tester.pump();
|
|
|
|
expect(
|
|
tester.getRect(find.widgetWithText(SizedBox, '2')),
|
|
const Rect.fromLTRB(0.0, 100.0, 800.0, 300.0),
|
|
);
|
|
|
|
// Now item 0 is 400.0px and going back will underflow.
|
|
await tester.pumpWidget(
|
|
listBuilder((BuildContext context, int index) {
|
|
return SizedBox(
|
|
height: index == 0 ? 400.0 : 200.0,
|
|
child: Center(child: Text(index.toString())),
|
|
);
|
|
}),
|
|
);
|
|
|
|
await tester.drag(find.text('2'), const Offset(0.0, 300.0));
|
|
// On this one frame, the scroll correction must properly propagate.
|
|
await tester.pump();
|
|
|
|
expect(
|
|
tester.getRect(find.widgetWithText(SizedBox, '0')),
|
|
const Rect.fromLTRB(0.0, -200.0, 800.0, 200.0),
|
|
);
|
|
});
|
|
|
|
testWidgets(
|
|
'SliverPadding includes preceding padding in the precedingScrollExtent provided to child',
|
|
(WidgetTester tester) async {
|
|
// Regression test for https://github.com/flutter/flutter/issues/49195
|
|
final UniqueKey key = UniqueKey();
|
|
await tester.pumpWidget(
|
|
Directionality(
|
|
textDirection: TextDirection.ltr,
|
|
child: CustomScrollView(
|
|
slivers: <Widget>[
|
|
SliverPadding(
|
|
padding: const EdgeInsets.only(top: 30),
|
|
sliver: SliverFillRemaining(
|
|
hasScrollBody: false,
|
|
child: Container(key: key, color: Colors.red),
|
|
),
|
|
),
|
|
],
|
|
),
|
|
),
|
|
);
|
|
await tester.pump();
|
|
|
|
// The value of 570 is expected since SliverFillRemaining will fill all of
|
|
// the space available to it. In this test, the extent of the viewport is
|
|
// 600 pixels. If the SliverPadding widget provides the right constraints
|
|
// to SliverFillRemaining, with 30 pixels preceding it, it should only have
|
|
// a height of 570.
|
|
expect(tester.renderObject<RenderBox>(find.byKey(key)).size.height, equals(570));
|
|
},
|
|
);
|
|
|
|
testWidgets(
|
|
"SliverPadding consumes only its padding from the overlap of its parent's constraints",
|
|
(WidgetTester tester) async {
|
|
final _MockRenderSliver mock = _MockRenderSliver();
|
|
addTearDown(mock.dispose);
|
|
final RenderSliverPadding renderObject = RenderSliverPadding(
|
|
padding: const EdgeInsets.only(top: 20),
|
|
);
|
|
addTearDown(renderObject.dispose);
|
|
renderObject.child = mock;
|
|
renderObject.layout(
|
|
const SliverConstraints(
|
|
viewportMainAxisExtent: 100.0,
|
|
overlap: 100.0,
|
|
cacheOrigin: 0.0,
|
|
scrollOffset: 0.0,
|
|
axisDirection: AxisDirection.down,
|
|
growthDirection: GrowthDirection.forward,
|
|
crossAxisExtent: 100.0,
|
|
crossAxisDirection: AxisDirection.right,
|
|
userScrollDirection: ScrollDirection.idle,
|
|
remainingPaintExtent: 100.0,
|
|
remainingCacheExtent: 100.0,
|
|
precedingScrollExtent: 0.0,
|
|
),
|
|
parentUsesSize: true,
|
|
);
|
|
expect(mock.constraints.overlap, 80.0);
|
|
},
|
|
);
|
|
|
|
testWidgets("SliverPadding passes the overlap to the child if it's negative", (
|
|
WidgetTester tester,
|
|
) async {
|
|
final _MockRenderSliver mock = _MockRenderSliver();
|
|
addTearDown(mock.dispose);
|
|
final RenderSliverPadding renderObject = RenderSliverPadding(
|
|
padding: const EdgeInsets.only(top: 20),
|
|
);
|
|
addTearDown(renderObject.dispose);
|
|
renderObject.child = mock;
|
|
renderObject.layout(
|
|
const SliverConstraints(
|
|
viewportMainAxisExtent: 100.0,
|
|
overlap: -100.0,
|
|
cacheOrigin: 0.0,
|
|
scrollOffset: 0.0,
|
|
axisDirection: AxisDirection.down,
|
|
growthDirection: GrowthDirection.forward,
|
|
crossAxisExtent: 100.0,
|
|
crossAxisDirection: AxisDirection.right,
|
|
userScrollDirection: ScrollDirection.idle,
|
|
remainingPaintExtent: 100.0,
|
|
remainingCacheExtent: 100.0,
|
|
precedingScrollExtent: 0.0,
|
|
),
|
|
parentUsesSize: true,
|
|
);
|
|
expect(mock.constraints.overlap, -100.0);
|
|
});
|
|
|
|
testWidgets('SliverPadding passes the paintOrigin of the child on', (WidgetTester tester) async {
|
|
final _MockRenderSliver mock = _MockRenderSliver();
|
|
addTearDown(mock.dispose);
|
|
final RenderSliverPadding renderObject = RenderSliverPadding(
|
|
padding: const EdgeInsets.only(top: 20),
|
|
);
|
|
addTearDown(renderObject.dispose);
|
|
renderObject.child = mock;
|
|
renderObject.layout(
|
|
const SliverConstraints(
|
|
viewportMainAxisExtent: 100.0,
|
|
overlap: 100.0,
|
|
cacheOrigin: 0.0,
|
|
scrollOffset: 0.0,
|
|
axisDirection: AxisDirection.down,
|
|
growthDirection: GrowthDirection.forward,
|
|
crossAxisExtent: 100.0,
|
|
crossAxisDirection: AxisDirection.right,
|
|
userScrollDirection: ScrollDirection.idle,
|
|
remainingPaintExtent: 100.0,
|
|
remainingCacheExtent: 100.0,
|
|
precedingScrollExtent: 0.0,
|
|
),
|
|
parentUsesSize: true,
|
|
);
|
|
expect(renderObject.geometry!.paintOrigin, 10.0);
|
|
});
|
|
}
|
|
|
|
void hitsText(HitTestResult hitTestResult, String text) {
|
|
switch (hitTestResult.path.first.target) {
|
|
case final TextSpan span:
|
|
expect(span.text, text);
|
|
case final RenderParagraph paragraph:
|
|
final InlineSpan span = paragraph.text;
|
|
expect(span, isA<TextSpan>());
|
|
expect((span as TextSpan).text, text);
|
|
case final HitTestTarget target:
|
|
fail('$target is not a TextSpan or a RenderParagraph.');
|
|
}
|
|
}
|