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449f4a6673
* Update project.pbxproj files to say Flutter rather than Chromium Also, the templates now have an empty organization so that we don't cause people to give their apps a Flutter copyright. * Update the copyright notice checker to require a standard notice on all files * Update copyrights on Dart files. (This was a mechanical commit.) * Fix weird license headers on Dart files that deviate from our conventions; relicense Shrine. Some were already marked "The Flutter Authors", not clear why. Their dates have been normalized. Some were missing the blank line after the license. Some were randomly different in trivial ways for no apparent reason (e.g. missing the trailing period). * Clean up the copyrights in non-Dart files. (Manual edits.) Also, make sure templates don't have copyrights. * Fix some more ORGANIZATIONNAMEs
110 lines
3.5 KiB
Dart
110 lines
3.5 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_test/flutter_test.dart';
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import 'package:flutter/widgets.dart';
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import 'package:flutter/rendering.dart';
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void main() {
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testWidgets('GridView default control', (WidgetTester tester) async {
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await tester.pumpWidget(
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Directionality(
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textDirection: TextDirection.ltr,
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child: Center(
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child: GridView.count(
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crossAxisCount: 1,
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),
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),
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),
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);
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});
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// Tests https://github.com/flutter/flutter/issues/5522
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testWidgets('GridView displays correct children with nonzero padding', (WidgetTester tester) async {
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const EdgeInsets padding = EdgeInsets.fromLTRB(0.0, 100.0, 0.0, 0.0);
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final Widget testWidget = Directionality(
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textDirection: TextDirection.ltr,
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child: Align(
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child: SizedBox(
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height: 800.0,
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width: 300.0, // forces the grid children to be 300..300
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child: GridView.count(
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crossAxisCount: 1,
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padding: padding,
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children: List<Widget>.generate(10, (int index) {
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return Text('$index', key: ValueKey<int>(index));
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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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await tester.pumpWidget(testWidget);
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// screen is 600px high, and has the following items:
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// 100..400 = 0
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// 400..700 = 1
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await tester.pump();
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expect(find.text('0'), findsOneWidget);
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expect(find.text('1'), findsOneWidget);
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expect(find.text('2'), findsNothing);
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expect(find.text('3'), findsNothing);
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await tester.drag(find.text('1'), const Offset(0.0, -500.0));
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await tester.pump();
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// -100..300 = 1
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// 300..600 = 2
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// 600..600 = 3
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expect(find.text('0'), findsNothing);
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expect(find.text('1'), findsOneWidget);
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expect(find.text('2'), findsOneWidget);
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expect(find.text('3'), findsOneWidget);
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expect(find.text('4'), findsNothing);
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expect(find.text('5'), findsNothing);
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await tester.drag(find.text('1'), const Offset(0.0, 150.0));
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await tester.pump();
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// Child '0' is now back onscreen, but by less than `padding.top`.
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// -250..050 = 0
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// 050..450 = 1
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// 450..750 = 2
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expect(find.text('0'), findsOneWidget);
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expect(find.text('1'), findsOneWidget);
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expect(find.text('2'), findsOneWidget);
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expect(find.text('3'), findsNothing);
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expect(find.text('4'), findsNothing);
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});
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testWidgets('GridView.count() fixed itemExtent, scroll to end, append, scroll', (WidgetTester tester) async {
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// Regression test for https://github.com/flutter/flutter/issues/9506
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Widget buildFrame(int itemCount) {
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return Directionality(
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textDirection: TextDirection.ltr,
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child: GridView.count(
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crossAxisCount: itemCount,
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children: List<Widget>.generate(itemCount, (int index) {
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return SizedBox(
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height: 200.0,
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child: Text('item $index'),
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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.pumpWidget(buildFrame(3));
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expect(find.text('item 0'), findsOneWidget);
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expect(find.text('item 1'), findsOneWidget);
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expect(find.text('item 2'), findsOneWidget);
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await tester.pumpWidget(buildFrame(4));
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final TestGesture gesture = await tester.startGesture(const Offset(0.0, 300.0));
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await gesture.moveBy(const Offset(0.0, -200.0));
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await tester.pumpAndSettle();
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expect(find.text('item 3'), findsOneWidget);
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});
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}
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