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// Task_T_Tests.cs
//
// Copyright (c) 2008 Jérémie "Garuma" Laval
//
// 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;
namespace MonoTests.System.Threading.Tasks
{
[TestFixture]
public class Task_T_Tests
{
Task<int> InitTestTask()
{
return Task.Factory.StartNew<int> (() => 5);
}
[Test]
[Category ("MultiThreaded")]
public void SimpleTaskTestCase ()
{
Task<int> f = InitTestTask ();
Assert.IsNotNull(f, "#1");
Assert.AreEqual(5, f.Result, "#2");
}
[Test]
[Category ("MultiThreaded")]
public void TaskContinueWithTestCase ()
{
bool result = false;
Task<int> f = InitTestTask ();
Task<int> cont = f.ContinueWith ((future) => { result = true; return future.Result * 2; });
f.Wait ();
cont.Wait ();
Assert.IsNotNull (cont, "#1");
Assert.IsTrue (result, "#2");
Assert.AreEqual (10, cont.Result);
}
static Task<int> CreateNestedFuture(int level)
{
if (level == 0)
return Task.Factory.StartNew(() => { Thread.Sleep (1); return 1; });
var t = CreateNestedFuture(level - 1);
return Task.Factory.StartNew(() => t.Result + 1);
}
[Test]
[Category ("MultiThreaded")]
public void NestedFutureTest ()
{
ParallelTestHelper.Repeat (delegate {
var t = CreateNestedFuture(10);
var t2 = CreateNestedFuture(20);
var t3 = CreateNestedFuture(30);
Assert.AreEqual (11, t.Result);
Assert.AreEqual (21, t2.Result);
Assert.AreEqual (31, t3.Result);
}, 50);
}
[Test]
[Category ("MultiThreaded")]
public void FaultedFutureTest ()
{
var thrown = new ApplicationException ();
var f = Task<int>.Factory.StartNew (() => { throw thrown; });
AggregateException ex = null;
try {
f.Wait ();
} catch (AggregateException e) {
ex = e;
}
Assert.IsNotNull (ex);
Assert.AreEqual (thrown, ex.InnerException);
Assert.AreEqual (thrown, f.Exception.InnerException);
Assert.AreEqual (TaskStatus.Faulted, f.Status);
ex = null;
try {
var result = f.Result;
} catch (AggregateException e) {
ex = e;
}
Assert.IsNotNull (ex);
Assert.AreEqual (TaskStatus.Faulted, f.Status);
Assert.AreEqual (thrown, f.Exception.InnerException);
Assert.AreEqual (thrown, ex.InnerException);
}
}
}
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