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5491c8c146
This auto-formats all *.dart files in the repository outside of the `engine` subdirectory and enforces that these files stay formatted with a presubmit check. **Reviewers:** Please carefully review all the commits except for the one titled "formatted". The "formatted" commit was auto-generated by running `dev/tools/format.sh -a -f`. The other commits were hand-crafted to prepare the repo for the formatting change. I recommend reviewing the commits one-by-one via the "Commits" tab and avoiding Github's "Files changed" tab as it will likely slow down your browser because of the size of this PR. --------- Co-authored-by: Kate Lovett <katelovett@google.com> Co-authored-by: LongCatIsLooong <31859944+LongCatIsLooong@users.noreply.github.com>
66 lines
2.5 KiB
Dart
66 lines
2.5 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/rendering.dart';
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import 'package:flutter/scheduler.dart';
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import 'package:flutter/widgets.dart';
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import 'package:flutter_test/flutter_test.dart';
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void main() {
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WidgetsFlutterBinding.ensureInitialized();
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test(
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'handleMetricsChanged does not scheduleForcedFrame unless there a registered renderView with a child',
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() async {
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expect(SchedulerBinding.instance.hasScheduledFrame, false);
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RendererBinding.instance.handleMetricsChanged();
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expect(SchedulerBinding.instance.hasScheduledFrame, false);
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RendererBinding.instance.addRenderView(RendererBinding.instance.renderView);
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RendererBinding.instance.handleMetricsChanged();
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expect(SchedulerBinding.instance.hasScheduledFrame, false);
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RendererBinding.instance.renderView.child = RenderLimitedBox();
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RendererBinding.instance.handleMetricsChanged();
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expect(SchedulerBinding.instance.hasScheduledFrame, true);
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RendererBinding.instance.removeRenderView(RendererBinding.instance.renderView);
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},
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);
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test('debugDumpSemantics prints explanation when semantics are unavailable', () {
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RendererBinding.instance.addRenderView(RendererBinding.instance.renderView);
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final List<String?> log = <String?>[];
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debugPrint = (String? message, {int? wrapWidth}) {
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log.add(message);
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};
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debugDumpSemanticsTree();
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expect(log, hasLength(1));
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expect(log.single, startsWith('Semantics not generated'));
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expect(
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log.single,
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endsWith(
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'For performance reasons, the framework only generates semantics when asked to do so by the platform.\n'
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'Usually, platforms only ask for semantics when assistive technologies (like screen readers) are running.\n'
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'To generate semantics, try turning on an assistive technology (like VoiceOver or TalkBack) on your device.',
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),
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);
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RendererBinding.instance.removeRenderView(RendererBinding.instance.renderView);
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});
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test('root pipeline owner cannot manage root node', () {
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final RenderObject rootNode = RenderProxyBox();
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expect(
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() => RendererBinding.instance.rootPipelineOwner.rootNode = rootNode,
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throwsA(
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isFlutterError.having(
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(FlutterError e) => e.message,
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'message',
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contains('Cannot set a rootNode on the default root pipeline owner.'),
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),
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),
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);
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});
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}
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