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Add:创建 flutter go web 版
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ryan
457
packages/flutter_web/test/widgets/text_selection_test.dart
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457
packages/flutter_web/test/widgets/text_selection_test.dart
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// Copyright 2018 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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// Synced 2019-05-30T14:20:57.784247.
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import 'package:flutter_web_test/flutter_web_test.dart';
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import 'package:flutter_web/gestures.dart' show PointerDeviceKind;
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import 'package:flutter_web/widgets.dart';
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void main() {
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int tapCount;
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int singleTapUpCount;
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int singleTapCancelCount;
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int singleLongTapStartCount;
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int doubleTapDownCount;
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int forcePressStartCount;
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int forcePressEndCount;
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int dragStartCount;
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int dragUpdateCount;
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int dragEndCount;
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const Offset forcePressOffset = Offset(400.0, 50.0);
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void _handleTapDown(TapDownDetails details) {
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tapCount++;
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}
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void _handleSingleTapUp(TapUpDetails details) {
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singleTapUpCount++;
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}
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void _handleSingleTapCancel() {
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singleTapCancelCount++;
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}
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void _handleSingleLongTapStart(LongPressStartDetails details) {
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singleLongTapStartCount++;
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}
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void _handleDoubleTapDown(TapDownDetails details) {
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doubleTapDownCount++;
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}
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void _handleForcePressStart(ForcePressDetails details) {
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forcePressStartCount++;
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}
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void _handleForcePressEnd(ForcePressDetails details) {
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forcePressEndCount++;
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}
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void _handleDragSelectionStart(DragStartDetails details) {
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dragStartCount++;
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}
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void _handleDragSelectionUpdate(
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DragStartDetails _, DragUpdateDetails details) {
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dragUpdateCount++;
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}
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void _handleDragSelectionEnd(DragEndDetails details) {
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dragEndCount++;
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}
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setUp(() {
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tapCount = 0;
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singleTapUpCount = 0;
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singleTapCancelCount = 0;
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singleLongTapStartCount = 0;
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doubleTapDownCount = 0;
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forcePressStartCount = 0;
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forcePressEndCount = 0;
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dragStartCount = 0;
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dragUpdateCount = 0;
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dragEndCount = 0;
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});
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Future<void> pumpGestureDetector(WidgetTester tester) async {
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await tester.pumpWidget(
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TextSelectionGestureDetector(
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behavior: HitTestBehavior.opaque,
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onTapDown: _handleTapDown,
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onSingleTapUp: _handleSingleTapUp,
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onSingleTapCancel: _handleSingleTapCancel,
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onSingleLongTapStart: _handleSingleLongTapStart,
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onDoubleTapDown: _handleDoubleTapDown,
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onForcePressStart: _handleForcePressStart,
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onForcePressEnd: _handleForcePressEnd,
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onDragSelectionStart: _handleDragSelectionStart,
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onDragSelectionUpdate: _handleDragSelectionUpdate,
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onDragSelectionEnd: _handleDragSelectionEnd,
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child: Container(),
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),
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);
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}
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testWidgets('a series of taps all call onTaps', (WidgetTester tester) async {
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await pumpGestureDetector(tester);
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await tester.tapAt(const Offset(200, 200));
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await tester.pump(const Duration(milliseconds: 150));
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await tester.tapAt(const Offset(200, 200));
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await tester.pump(const Duration(milliseconds: 150));
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await tester.tapAt(const Offset(200, 200));
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await tester.pump(const Duration(milliseconds: 150));
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await tester.tapAt(const Offset(200, 200));
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await tester.pump(const Duration(milliseconds: 150));
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await tester.tapAt(const Offset(200, 200));
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await tester.pump(const Duration(milliseconds: 150));
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await tester.tapAt(const Offset(200, 200));
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expect(tapCount, 6);
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});
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testWidgets(
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'in a series of rapid taps, onTapDown and onDoubleTapDown alternate',
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(WidgetTester tester) async {
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await pumpGestureDetector(tester);
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await tester.tapAt(const Offset(200, 200));
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await tester.pump(const Duration(milliseconds: 50));
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expect(singleTapUpCount, 1);
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await tester.tapAt(const Offset(200, 200));
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await tester.pump(const Duration(milliseconds: 50));
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expect(singleTapUpCount, 1);
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expect(doubleTapDownCount, 1);
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await tester.tapAt(const Offset(200, 200));
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await tester.pump(const Duration(milliseconds: 50));
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expect(singleTapUpCount, 2);
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expect(doubleTapDownCount, 1);
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await tester.tapAt(const Offset(200, 200));
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await tester.pump(const Duration(milliseconds: 50));
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expect(singleTapUpCount, 2);
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expect(doubleTapDownCount, 2);
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await tester.tapAt(const Offset(200, 200));
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await tester.pump(const Duration(milliseconds: 50));
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expect(singleTapUpCount, 3);
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expect(doubleTapDownCount, 2);
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await tester.tapAt(const Offset(200, 200));
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expect(singleTapUpCount, 3);
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expect(doubleTapDownCount, 3);
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expect(tapCount, 6);
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});
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testWidgets('quick tap-tap-hold is a double tap down',
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(WidgetTester tester) async {
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await pumpGestureDetector(tester);
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await tester.tapAt(const Offset(200, 200));
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await tester.pump(const Duration(milliseconds: 50));
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expect(singleTapUpCount, 1);
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final TestGesture gesture =
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await tester.startGesture(const Offset(200, 200));
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await tester.pump(const Duration(milliseconds: 200));
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expect(singleTapUpCount, 1);
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// Every down is counted.
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expect(tapCount, 2);
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// No cancels because the second tap of the double tap is a second successful
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// single tap behind the scene.
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expect(singleTapCancelCount, 0);
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expect(doubleTapDownCount, 1);
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// The double tap down hold supersedes the single tap down.
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expect(singleLongTapStartCount, 0);
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await gesture.up();
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// Nothing else happens on up.
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expect(singleTapUpCount, 1);
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expect(tapCount, 2);
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expect(singleTapCancelCount, 0);
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expect(doubleTapDownCount, 1);
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expect(singleLongTapStartCount, 0);
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});
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testWidgets('a very quick swipe is ignored', (WidgetTester tester) async {
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await pumpGestureDetector(tester);
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final TestGesture gesture =
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await tester.startGesture(const Offset(200, 200));
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await tester.pump(const Duration(milliseconds: 20));
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await gesture.moveBy(const Offset(100, 100));
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await tester.pump();
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expect(singleTapUpCount, 0);
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expect(tapCount, 0);
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expect(singleTapCancelCount, 0);
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expect(doubleTapDownCount, 0);
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expect(singleLongTapStartCount, 0);
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await gesture.up();
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// Nothing else happens on up.
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expect(singleTapUpCount, 0);
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expect(tapCount, 0);
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expect(singleTapCancelCount, 0);
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expect(doubleTapDownCount, 0);
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expect(singleLongTapStartCount, 0);
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});
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testWidgets('a slower swipe has a tap down and a canceled tap',
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(WidgetTester tester) async {
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await pumpGestureDetector(tester);
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final TestGesture gesture =
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await tester.startGesture(const Offset(200, 200));
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await tester.pump(const Duration(milliseconds: 120));
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await gesture.moveBy(const Offset(100, 100));
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await tester.pump();
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expect(singleTapUpCount, 0);
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expect(tapCount, 1);
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expect(singleTapCancelCount, 1);
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expect(doubleTapDownCount, 0);
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expect(singleLongTapStartCount, 0);
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});
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testWidgets('a force press intiates a force press',
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(WidgetTester tester) async {
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await pumpGestureDetector(tester);
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const int pointerValue = 1;
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final TestGesture gesture = await tester.createGesture();
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await gesture.downWithCustomEvent(
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forcePressOffset,
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const PointerDownEvent(
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pointer: pointerValue,
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position: forcePressOffset,
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pressure: 0.0,
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pressureMax: 6.0,
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pressureMin: 0.0,
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),
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);
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await gesture.updateWithCustomEvent(const PointerMoveEvent(
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pointer: pointerValue,
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position: Offset(0.0, 0.0),
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pressure: 0.5,
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pressureMin: 0,
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pressureMax: 1));
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await gesture.up();
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await tester.pumpAndSettle();
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await gesture.downWithCustomEvent(
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forcePressOffset,
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const PointerDownEvent(
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pointer: pointerValue,
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position: forcePressOffset,
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pressure: 0.0,
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pressureMax: 6.0,
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pressureMin: 0.0,
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),
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);
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await gesture.updateWithCustomEvent(const PointerMoveEvent(
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pointer: pointerValue,
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position: Offset(0.0, 0.0),
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pressure: 0.5,
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pressureMin: 0,
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pressureMax: 1));
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await gesture.up();
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await tester.pump(const Duration(milliseconds: 20));
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await gesture.downWithCustomEvent(
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forcePressOffset,
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const PointerDownEvent(
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pointer: pointerValue,
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position: forcePressOffset,
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pressure: 0.0,
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pressureMax: 6.0,
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pressureMin: 0.0,
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),
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);
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await gesture.updateWithCustomEvent(const PointerMoveEvent(
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pointer: pointerValue,
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position: Offset(0.0, 0.0),
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pressure: 0.5,
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pressureMin: 0,
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pressureMax: 1));
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await gesture.up();
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await tester.pump(const Duration(milliseconds: 20));
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await gesture.downWithCustomEvent(
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forcePressOffset,
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const PointerDownEvent(
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pointer: pointerValue,
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position: forcePressOffset,
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pressure: 0.0,
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pressureMax: 6.0,
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pressureMin: 0.0,
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),
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);
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await gesture.updateWithCustomEvent(const PointerMoveEvent(
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pointer: pointerValue,
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position: Offset(0.0, 0.0),
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pressure: 0.5,
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pressureMin: 0,
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pressureMax: 1));
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await gesture.up();
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expect(forcePressStartCount, 4);
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});
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testWidgets(
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'a tap and then force press intiates a force press and not a double tap',
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(WidgetTester tester) async {
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await pumpGestureDetector(tester);
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const int pointerValue = 1;
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final TestGesture gesture = await tester.createGesture();
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await gesture.downWithCustomEvent(
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forcePressOffset,
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const PointerDownEvent(
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pointer: pointerValue,
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position: forcePressOffset,
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pressure: 0.0,
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pressureMax: 6.0,
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pressureMin: 0.0,
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),
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);
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// Initiate a quick tap.
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await gesture.updateWithCustomEvent(const PointerMoveEvent(
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pointer: pointerValue,
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position: Offset(0.0, 0.0),
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pressure: 0.0,
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pressureMin: 0,
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pressureMax: 1,
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));
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await tester.pump(const Duration(milliseconds: 50));
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await gesture.up();
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// Initiate a force tap.
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await gesture.downWithCustomEvent(
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forcePressOffset,
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const PointerDownEvent(
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pointer: pointerValue,
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position: forcePressOffset,
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pressure: 0.0,
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pressureMax: 6.0,
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pressureMin: 0.0,
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),
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);
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await gesture.updateWithCustomEvent(const PointerMoveEvent(
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pointer: pointerValue,
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position: Offset(0.0, 0.0),
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pressure: 0.5,
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pressureMin: 0,
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pressureMax: 1,
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));
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expect(forcePressStartCount, 1);
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await tester.pump(const Duration(milliseconds: 50));
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await gesture.up();
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await tester.pumpAndSettle();
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expect(forcePressEndCount, 1);
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expect(doubleTapDownCount, 0);
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});
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testWidgets(
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'a long press from a touch device is recognized as a long single tap',
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(WidgetTester tester) async {
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await pumpGestureDetector(tester);
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const int pointerValue = 1;
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final TestGesture gesture = await tester.startGesture(
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const Offset(200.0, 200.0),
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pointer: pointerValue,
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kind: PointerDeviceKind.touch);
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await tester.pump(const Duration(seconds: 2));
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await gesture.up();
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await tester.pumpAndSettle();
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expect(tapCount, 1);
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expect(singleTapUpCount, 0);
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expect(singleLongTapStartCount, 1);
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});
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testWidgets('a long press from a mouse is just a tap',
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(WidgetTester tester) async {
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await pumpGestureDetector(tester);
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const int pointerValue = 1;
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final TestGesture gesture = await tester.startGesture(
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const Offset(200.0, 200.0),
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pointer: pointerValue,
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kind: PointerDeviceKind.mouse);
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await tester.pump(const Duration(seconds: 2));
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await gesture.up();
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await tester.pumpAndSettle();
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expect(tapCount, 1);
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expect(singleTapUpCount, 1);
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expect(singleLongTapStartCount, 0);
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await gesture.removePointer();
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});
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testWidgets('a touch drag is not recognized for text selection',
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(WidgetTester tester) async {
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await pumpGestureDetector(tester);
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const int pointerValue = 1;
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final TestGesture gesture = await tester.startGesture(
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const Offset(200.0, 200.0),
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pointer: pointerValue,
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kind: PointerDeviceKind.touch);
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await tester.pump();
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await gesture.moveBy(const Offset(210.0, 200.0));
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await tester.pump();
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await gesture.up();
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await tester.pumpAndSettle();
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expect(tapCount, 0);
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expect(singleTapUpCount, 0);
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expect(dragStartCount, 0);
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expect(dragUpdateCount, 0);
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expect(dragEndCount, 0);
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await gesture.removePointer();
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});
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testWidgets('a mouse drag is recognized for text selection',
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(WidgetTester tester) async {
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await pumpGestureDetector(tester);
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const int pointerValue = 1;
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final TestGesture gesture = await tester.startGesture(
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const Offset(200.0, 200.0),
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pointer: pointerValue,
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kind: PointerDeviceKind.mouse);
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await tester.pump();
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await gesture.moveBy(const Offset(210.0, 200.0));
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await tester.pump();
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await gesture.up();
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await tester.pumpAndSettle();
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expect(tapCount, 0);
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expect(singleTapUpCount, 0);
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expect(dragStartCount, 1);
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expect(dragUpdateCount, 1);
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expect(dragEndCount, 1);
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await gesture.removePointer();
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});
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testWidgets('a slow mouse drag is still recognized for text selection',
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(WidgetTester tester) async {
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await pumpGestureDetector(tester);
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const int pointerValue = 1;
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final TestGesture gesture = await tester.startGesture(
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const Offset(200.0, 200.0),
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pointer: pointerValue,
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kind: PointerDeviceKind.mouse);
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await tester.pump(const Duration(seconds: 2));
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await gesture.moveBy(const Offset(210.0, 200.0));
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await tester.pump();
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await gesture.up();
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await tester.pumpAndSettle();
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expect(dragStartCount, 1);
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expect(dragUpdateCount, 1);
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expect(dragEndCount, 1);
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await gesture.removePointer();
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});
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}
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