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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>
104 lines
3.2 KiB
Dart
104 lines
3.2 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('TrackingScrollController saves offset', (WidgetTester tester) async {
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final TrackingScrollController controller = TrackingScrollController();
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addTearDown(controller.dispose);
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const double listItemHeight = 100.0;
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await tester.pumpWidget(
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Directionality(
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textDirection: TextDirection.ltr,
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child: PageView.builder(
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itemBuilder: (BuildContext context, int index) {
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return ListView(
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controller: controller,
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children:
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List<Widget>.generate(
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10,
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(int i) => SizedBox(height: listItemHeight, child: Text('Page$index-Item$i')),
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).toList(),
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);
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},
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),
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),
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);
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expect(find.text('Page0-Item1'), findsOneWidget);
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expect(find.text('Page1-Item1'), findsNothing);
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expect(find.text('Page2-Item0'), findsNothing);
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expect(find.text('Page2-Item1'), findsNothing);
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controller.jumpTo(listItemHeight + 10);
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await tester.pumpAndSettle();
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await tester.fling(find.text('Page0-Item1'), const Offset(-100.0, 0.0), 10000.0);
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await tester.pumpAndSettle();
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expect(find.text('Page0-Item1'), findsNothing);
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expect(find.text('Page1-Item1'), findsOneWidget);
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expect(find.text('Page2-Item0'), findsNothing);
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expect(find.text('Page2-Item1'), findsNothing);
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await tester.fling(find.text('Page1-Item1'), const Offset(-100.0, 0.0), 10000.0);
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await tester.pumpAndSettle();
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expect(find.text('Page0-Item1'), findsNothing);
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expect(find.text('Page1-Item1'), findsNothing);
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expect(find.text('Page2-Item0'), findsNothing);
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expect(find.text('Page2-Item1'), findsOneWidget);
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await tester.pumpWidget(const Text('Another page', textDirection: TextDirection.ltr));
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expect(controller.initialScrollOffset, 0.0);
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});
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testWidgets('TrackingScrollController saves offset', (WidgetTester tester) async {
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int attach = 0;
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int detach = 0;
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final TrackingScrollController controller = TrackingScrollController(
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onAttach: (_) {
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attach++;
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},
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onDetach: (_) {
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detach++;
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},
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);
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addTearDown(controller.dispose);
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const double listItemHeight = 100.0;
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await tester.pumpWidget(
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Directionality(
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textDirection: TextDirection.ltr,
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child: PageView.builder(
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itemBuilder: (BuildContext context, int index) {
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return ListView(
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controller: controller,
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children:
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List<Widget>.generate(
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10,
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(int i) => SizedBox(height: listItemHeight, child: Text('Page$index-Item$i')),
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).toList(),
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);
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},
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),
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),
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);
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await tester.pumpAndSettle();
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expect(attach, 1);
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expect(detach, 0);
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await tester.pumpWidget(Container());
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await tester.pumpAndSettle();
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expect(attach, 1);
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expect(detach, 1);
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});
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}
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