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Side by Side Diff: tests/html/request_animation_task_test.dart

Issue 2123593002: Revert "Reapply zone tasks." (Closed) Base URL: git@github.com:dart-lang/sdk.git@master
Patch Set: Created 4 years, 5 months ago
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1 // Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file
2 // for details. All rights reserved. Use of this source code is governed by a
3 // BSD-style license that can be found in the LICENSE file.
4
5 library EventTaskZoneTest;
6
7 import 'package:unittest/unittest.dart';
8 import 'package:unittest/html_config.dart';
9 import 'dart:async';
10 import 'dart:html';
11
12 // Tests zone tasks with window.requestAnimationFrame.
13
14 class MockAnimationFrameTask implements AnimationFrameTask {
15 static int taskId = 499;
16
17 final int id;
18 final Zone zone;
19 bool _isCanceled = false;
20 Function _callback;
21
22 MockAnimationFrameTask(
23 this.id, this.zone, this._callback);
24
25 void cancel(Window window) {
26 _isCanceled = true;
27 }
28
29 trigger(num stamp) {
30 zone.runTask(run, this, stamp);
31 }
32
33 static create(AnimationFrameRequestSpecification spec, Zone zone) {
34 var callback = zone.registerUnaryCallback(spec.callback);
35 return new MockAnimationFrameTask(
36 taskId++, zone, callback);
37 }
38
39 static run(MockAnimationFrameTask task, num arg) {
40 AnimationFrameTask.removeMapping(task.id);
41 task._callback(arg);
42 }
43 }
44
45 animationFrameTest() {
46 test("animationFrameTest - no intercept", () async {
47 AnimationFrameTask lastTask;
48 bool sawRequest = false;
49 int id;
50 num providedArg;
51
52 Object createTaskHandler(Zone self, ZoneDelegate parent, Zone zone,
53 TaskCreate create, TaskSpecification specification) {
54 if (specification is AnimationFrameRequestSpecification) {
55 sawRequest = true;
56 lastTask = parent.createTask(zone, create, specification);
57 id = lastTask.id;
58 return lastTask;
59 }
60 return parent.createTask(zone, create, specification);
61 }
62
63 void runTaskHandler(Zone self, ZoneDelegate parent, Zone zone, TaskRun run,
64 Object task, Object arg) {
65 if (identical(task, lastTask)) {
66 providedArg = arg;
67 }
68 parent.runTask(zone, run, task, arg);
69 }
70
71 var completer = new Completer();
72 var publicId;
73 runZoned(() {
74 publicId = window.requestAnimationFrame((num stamp) {
75 completer.complete(stamp);
76 });
77 },
78 zoneSpecification: new ZoneSpecification(
79 createTask: createTaskHandler, runTask: runTaskHandler));
80
81 var referenceCompleter = new Completer();
82 window.requestAnimationFrame((num stamp) {
83 referenceCompleter.complete(stamp);
84 });
85
86 var callbackStamp = await completer.future;
87 var referenceStamp = await referenceCompleter.future;
88
89 expect(callbackStamp, equals(referenceStamp));
90 expect(providedArg, equals(callbackStamp));
91 expect(sawRequest, isTrue);
92 expect(publicId, isNotNull);
93 expect(publicId, equals(id));
94 });
95 }
96
97 interceptedAnimationFrameTest() {
98 test("animationFrameTest - intercepted", () {
99 List<MockAnimationFrameTask> tasks = [];
100 List<num> loggedRuns = [];
101 int executedTaskId;
102 int executedStamp;
103
104 Object createTaskHandler(Zone self, ZoneDelegate parent, Zone zone,
105 TaskCreate create, TaskSpecification specification) {
106 if (specification is AnimationFrameRequestSpecification) {
107 var task = parent.createTask(
108 zone, MockAnimationFrameTask.create, specification);
109 tasks.add(task);
110 return task;
111 }
112 return parent.createTask(zone, create, specification);
113 }
114
115 void runTaskHandler(Zone self, ZoneDelegate parent, Zone zone, TaskRun run,
116 Object task, Object arg) {
117 if (tasks.contains(task)) {
118 loggedRuns.add(arg);
119 }
120 parent.runTask(zone, run, task, arg);
121 }
122
123 var id0, id1, id2;
124
125 runZoned(() {
126 id0 = window.requestAnimationFrame((num stamp) {
127 executedTaskId = id0;
128 executedStamp = stamp;
129 });
130 id1 = window.requestAnimationFrame((num stamp) {
131 executedTaskId = id1;
132 executedStamp = stamp;
133 });
134 id2 = window.requestAnimationFrame((num stamp) {
135 executedTaskId = id2;
136 executedStamp = stamp;
137 });
138 },
139 zoneSpecification: new ZoneSpecification(
140 createTask: createTaskHandler, runTask: runTaskHandler));
141
142 expect(tasks.length, 3);
143 expect(executedTaskId, isNull);
144 expect(executedStamp, isNull);
145 expect(loggedRuns.isEmpty, isTrue);
146
147 tasks[0].trigger(123.1);
148 expect(executedTaskId, id0);
149 expect(executedStamp, 123.1);
150
151 tasks[1].trigger(123.2);
152 expect(executedTaskId, id1);
153 expect(executedStamp, 123.2);
154
155 expect(loggedRuns, equals([123.1, 123.2]));
156
157 window.cancelAnimationFrame(id2);
158 expect(tasks[2]._isCanceled, isTrue);
159 // Cancel it a second time. Should not crash.
160 window.cancelAnimationFrame(id2);
161 expect(tasks[2]._isCanceled, isTrue);
162 });
163 }
164
165 main() {
166 useHtmlConfiguration();
167
168 animationFrameTest();
169 interceptedAnimationFrameTest();
170 }
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