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100 lines
3.8 KiB
Dart
100 lines
3.8 KiB
Dart
// Copyright 2015 The Chromium 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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void main() {
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testWidgets('Scroll notification basics', (WidgetTester tester) async {
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ScrollNotification notification;
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await tester.pumpWidget(new NotificationListener<ScrollNotification>(
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onNotification: (ScrollNotification value) {
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notification = value;
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return false;
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},
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child: new ScrollableViewport(
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child: new SizedBox(height: 1200.0)
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)
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));
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TestGesture gesture = await tester.startGesture(new Point(100.0, 100.0));
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await tester.pump(const Duration(seconds: 1));
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expect(notification.kind, equals(ScrollNotificationKind.started));
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expect(notification.depth, equals(0));
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expect(notification.dragStartDetails, isNotNull);
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expect(notification.dragStartDetails.globalPosition, equals(new Point(100.0, 100.0)));
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expect(notification.dragUpdateDetails, isNull);
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expect(notification.dragEndDetails, isNull);
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await gesture.moveBy(new Offset(-10.0, -10.0));
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await tester.pump(const Duration(seconds: 1));
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expect(notification.kind, equals(ScrollNotificationKind.updated));
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expect(notification.depth, equals(0));
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expect(notification.dragStartDetails, isNull);
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expect(notification.dragUpdateDetails, isNotNull);
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expect(notification.dragUpdateDetails.globalPosition, equals(new Point(90.0, 90.0)));
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expect(notification.dragUpdateDetails.delta, equals(new Offset(0.0, -10.0)));
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expect(notification.dragEndDetails, isNull);
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await gesture.up();
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await tester.pump(const Duration(seconds: 1));
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expect(notification.kind, equals(ScrollNotificationKind.ended));
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expect(notification.depth, equals(0));
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expect(notification.dragStartDetails, isNull);
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expect(notification.dragUpdateDetails, isNull);
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expect(notification.dragEndDetails, isNotNull);
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expect(notification.dragEndDetails.velocity, equals(Velocity.zero));
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});
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testWidgets('Scroll notification depth', (WidgetTester tester) async {
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final List<ScrollNotificationKind> depth0Kinds = <ScrollNotificationKind>[];
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final List<ScrollNotificationKind> depth1Kinds = <ScrollNotificationKind>[];
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final List<int> depth0Values = <int>[];
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final List<int> depth1Values = <int>[];
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await tester.pumpWidget(new NotificationListener<ScrollNotification>(
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onNotification: (ScrollNotification value) {
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depth1Kinds.add(value.kind);
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depth1Values.add(value.depth);
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return false;
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},
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child: new ScrollableViewport(
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child: new SizedBox(
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height: 1200.0,
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child: new NotificationListener<ScrollNotification>(
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onNotification: (ScrollNotification value) {
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depth0Kinds.add(value.kind);
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depth0Values.add(value.depth);
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return false;
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},
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child: new Container(
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padding: const EdgeInsets.all(50.0),
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child: new ScrollableViewport(child: new SizedBox(height: 1200.0))
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)
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)
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)
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)
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));
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TestGesture gesture = await tester.startGesture(new Point(100.0, 100.0));
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await tester.pump(const Duration(seconds: 1));
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await gesture.moveBy(new Offset(-10.0, -10.0));
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await tester.pump(const Duration(seconds: 1));
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await gesture.up();
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await tester.pump(const Duration(seconds: 1));
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final List<ScrollNotificationKind> kinds = <ScrollNotificationKind>[
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ScrollNotificationKind.started,
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ScrollNotificationKind.updated,
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ScrollNotificationKind.ended
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];
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expect(depth0Kinds, equals(kinds));
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expect(depth1Kinds, equals(kinds));
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expect(depth0Values, equals(<int>[0, 0, 0]));
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expect(depth1Values, equals(<int>[1, 1, 1]));
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});
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}
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