1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
// Copyright 2014 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
import 'package:flutter/gestures.dart';
import 'package:flutter/material.dart';
import 'package:flutter/scheduler.dart';
import 'package:flutter_test/flutter_test.dart';
class CountButton extends StatefulWidget {
const CountButton({super.key});
@override
State<CountButton> createState() => _CountButtonState();
}
class _CountButtonState extends State<CountButton> {
int counter = 0;
@override
Widget build(BuildContext context) {
return ElevatedButton(
child: Text('Counter $counter'),
onPressed: () {
setState(() {
counter += 1;
});
},
);
}
}
class AnimateSample extends StatefulWidget {
const AnimateSample({super.key});
@override
State<AnimateSample> createState() => _AnimateSampleState();
}
class _AnimateSampleState extends State<AnimateSample>
with SingleTickerProviderStateMixin {
late AnimationController _controller;
@override
void initState() {
super.initState();
_controller = AnimationController(
vsync: this,
duration: const Duration(seconds: 1),
)..forward();
}
@override
void dispose() {
_controller.dispose();
super.dispose();
}
@override
Widget build(BuildContext context) {
return AnimatedBuilder(
animation: _controller,
builder: (BuildContext context, _) => Text('Value: ${_controller.value}'),
);
}
}
void main() {
test('Test pump on LiveWidgetController', () async {
runApp(const MaterialApp(home: Center(child: CountButton())));
await SchedulerBinding.instance.endOfFrame;
final WidgetController controller =
LiveWidgetController(WidgetsBinding.instance);
await controller.tap(find.text('Counter 0'));
expect(find.text('Counter 0'), findsOneWidget);
expect(find.text('Counter 1'), findsNothing);
await controller.pump();
expect(find.text('Counter 0'), findsNothing);
expect(find.text('Counter 1'), findsOneWidget);
});
test('Test pumpAndSettle on LiveWidgetController', () async {
runApp(const MaterialApp(home: Center(child: AnimateSample())));
await SchedulerBinding.instance.endOfFrame;
final WidgetController controller =
LiveWidgetController(WidgetsBinding.instance);
expect(find.text('Value: 1.0'), findsNothing);
await controller.pumpAndSettle();
expect(find.text('Value: 1.0'), findsOneWidget);
});
test('Input event array on LiveWidgetController', () async {
final List<String> logs = <String>[];
runApp(
MaterialApp(
home: Listener(
onPointerDown: (PointerDownEvent event) => logs.add('down ${event.buttons}'),
onPointerMove: (PointerMoveEvent event) => logs.add('move ${event.buttons}'),
onPointerUp: (PointerUpEvent event) => logs.add('up ${event.buttons}'),
child: const Text('test'),
),
),
);
await SchedulerBinding.instance.endOfFrame;
final WidgetController controller =
LiveWidgetController(WidgetsBinding.instance);
final Offset location = controller.getCenter(find.text('test'));
final List<PointerEventRecord> records = <PointerEventRecord>[
PointerEventRecord(Duration.zero, <PointerEvent>[
// Typically PointerAddedEvent is not used in testers, but for records
// captured on a device it is usually what start a gesture.
PointerAddedEvent(
position: location,
),
PointerDownEvent(
position: location,
buttons: kSecondaryMouseButton,
pointer: 1,
),
]),
...<PointerEventRecord>[
for (Duration t = const Duration(milliseconds: 5);
t < const Duration(milliseconds: 80);
t += const Duration(milliseconds: 16))
PointerEventRecord(t, <PointerEvent>[
PointerMoveEvent(
timeStamp: t - const Duration(milliseconds: 1),
position: location,
buttons: kSecondaryMouseButton,
pointer: 1,
),
]),
],
PointerEventRecord(const Duration(milliseconds: 80), <PointerEvent>[
PointerUpEvent(
timeStamp: const Duration(milliseconds: 79),
position: location,
buttons: kSecondaryMouseButton,
pointer: 1,
),
]),
];
final List<Duration> timeDiffs =
await controller.handlePointerEventRecord(records);
expect(timeDiffs.length, records.length);
for (final Duration diff in timeDiffs) {
// Allow some freedom of time delay in real world.
// TODO(pdblasi-google): The expected wiggle room should be -1, but occassional
// results were reaching -6. This assert has been adjusted to reduce flakiness,
// but the root cause is still unknown. (https://github.com/flutter/flutter/issues/109638)
assert(diff.inMilliseconds > -7, 'timeDiffs were: $timeDiffs (offending time was ${diff.inMilliseconds}ms)');
}
const String b = '$kSecondaryMouseButton';
expect(logs.first, 'down $b');
for (int i = 1; i < logs.length - 1; i++) {
expect(logs[i], 'move $b');
}
expect(logs.last, 'up $b');
});
}