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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>
71 lines
1.9 KiB
Dart
71 lines
1.9 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/widgets.dart';
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import 'package:flutter_test/flutter_test.dart';
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void main() {
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testWidgets('Can call setState from didUpdateWidget', (WidgetTester tester) async {
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await tester.pumpWidget(
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const Directionality(textDirection: TextDirection.ltr, child: WidgetUnderTest(text: 'hello')),
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);
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expect(find.text('hello'), findsOneWidget);
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expect(find.text('world'), findsNothing);
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final _WidgetUnderTestState state = tester.state<_WidgetUnderTestState>(
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find.byType(WidgetUnderTest),
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);
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expect(state.setStateCalled, 0);
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expect(state.didUpdateWidgetCalled, 0);
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await tester.pumpWidget(
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const Directionality(textDirection: TextDirection.ltr, child: WidgetUnderTest(text: 'world')),
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);
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expect(find.text('world'), findsOneWidget);
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expect(find.text('hello'), findsNothing);
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expect(state.setStateCalled, 1);
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expect(state.didUpdateWidgetCalled, 1);
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});
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}
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class WidgetUnderTest extends StatefulWidget {
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const WidgetUnderTest({super.key, required this.text});
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final String text;
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@override
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State<WidgetUnderTest> createState() => _WidgetUnderTestState();
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}
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class _WidgetUnderTestState extends State<WidgetUnderTest> {
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late String text = widget.text;
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int setStateCalled = 0;
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int didUpdateWidgetCalled = 0;
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@override
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void didUpdateWidget(WidgetUnderTest oldWidget) {
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super.didUpdateWidget(oldWidget);
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didUpdateWidgetCalled += 1;
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if (oldWidget.text != widget.text) {
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// This setState is load bearing for the test.
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setState(() {
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text = widget.text;
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});
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}
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}
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@override
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void setState(VoidCallback fn) {
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super.setState(fn);
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setStateCalled += 1;
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}
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@override
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Widget build(BuildContext context) {
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return Text(text);
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}
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}
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