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
164
165
166
167
168
169
170
171
172
173
174
175
|
//
// TaskAwaiterTest_T.cs
//
// Authors:
// Marek Safar <marek.safar@gmail.com>
//
// Copyright (C) 2011 Xamarin, Inc (http://www.xamarin.com)
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using System;
using System.Threading;
using System.Threading.Tasks;
using NUnit.Framework;
using System.Runtime.CompilerServices;
namespace MonoTests.System.Runtime.CompilerServices
{
[TestFixture]
public class TaskAwaiterTest_T
{
class MyContext : SynchronizationContext
{
public int PostCounter;
public ManualResetEvent mre = new ManualResetEvent (false);
public override void OperationStarted ()
{
base.OperationStarted ();
}
public override void OperationCompleted ()
{
base.OperationCompleted ();
}
public override void Post (SendOrPostCallback d, object state)
{
++PostCounter;
mre.Set ();
base.Post (d, state);
}
public override void Send (SendOrPostCallback d, object state)
{
base.Send (d, state);
}
}
Task<int> task;
[Test]
public void GetResultFaulted ()
{
TaskAwaiter<int> awaiter;
task = new Task<int> (() => { throw new ApplicationException (); });
awaiter = task.GetAwaiter ();
task.RunSynchronously (TaskScheduler.Current);
Assert.IsTrue (awaiter.IsCompleted);
try {
awaiter.GetResult ();
Assert.Fail ();
} catch (ApplicationException) {
}
}
[Category ("NotWorking")] // Bug #18629
[Test]
public void GetResultAfterMultipleExceptions ()
{
TaskAwaiter<object> awaiter;
CreateFaultedAwaiter (out awaiter);
try {
awaiter.GetResult ();
Assert.Fail ();
} catch (AggregateException ae) {
Assert.IsFalse (ae.StackTrace.Contains ("--- End"), "#1");
Assert.IsTrue (ae.StackTrace.Contains ("CreateFaultedAwaiter"), "#2");
}
}
static void CreateFaultedAwaiter (out TaskAwaiter<object> awaiter)
{
var faultedSource = new TaskCompletionSource<object>();
faultedSource.SetException(new Exception());
awaiter = faultedSource.Task.GetAwaiter ();
try {
awaiter.GetResult ();
} catch {
}
try {
awaiter.GetResult ();
} catch {
}
}
[Test]
public void GetResultCanceled ()
{
TaskAwaiter<int> awaiter;
var token = new CancellationToken (true);
task = new Task<int> (() => 2, token);
awaiter = task.GetAwaiter ();
try {
awaiter.GetResult ();
Assert.Fail ();
} catch (TaskCanceledException) {
}
}
[Test]
[Category ("MultiThreaded")]
public void ContextTest ()
{
TaskAwaiter awaiter;
var task = new Task (() => { throw new ApplicationException (); });
awaiter = task.GetAwaiter ();
task.RunSynchronously (TaskScheduler.Current);
Assert.IsTrue (awaiter.IsCompleted);
try {
awaiter.GetResult ();
Assert.Fail ();
} catch (ApplicationException) {
}
var context = new MyContext ();
var old = SynchronizationContext.Current;
SynchronizationContext.SetSynchronizationContext (context);
try {
var t = new Task (delegate { });
var a = t.GetAwaiter ();
a.OnCompleted (delegate { });
t.Start ();
Assert.IsTrue (t.Wait (5000), "#1");
} finally {
SynchronizationContext.SetSynchronizationContext (old);
}
Assert.IsTrue (context.mre.WaitOne (5000), "#2");
Assert.AreEqual (1, context.PostCounter, "#3");
}
}
}
|
