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//
// ThreadLazyTests.cs
//
// Author:
// Jérémie "Garuma" Laval <jeremie.laval@gmail.com>
//
// Copyright (c) 2009 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 NUnit;
using NUnit.Framework;
#if !MOBILE
using NUnit.Framework.SyntaxHelpers;
#endif
namespace MonoTests.System.Threading
{
[TestFixtureAttribute]
public class ThreadLocalTests
{
ThreadLocal<int> threadLocal;
int nTimes;
[SetUp]
public void Setup ()
{
nTimes = 0;
threadLocal = new ThreadLocal<int> (() => { Interlocked.Increment (ref nTimes); return 42; });
}
[Test]
public void SingleThreadTest ()
{
AssertThreadLocal ();
}
[Test]
public void ThreadedTest ()
{
AssertThreadLocal ();
Thread t = new Thread ((object o) => { Interlocked.Decrement (ref nTimes); AssertThreadLocal (); });
t.Start ();
t.Join ();
}
[Test]
public void InitializeThrowingTest ()
{
int callTime = 0;
threadLocal = new ThreadLocal<int> (() => {
Interlocked.Increment (ref callTime);
throw new ApplicationException ("foo");
});
Exception exception = null;
try {
var foo = threadLocal.Value;
} catch (Exception e) {
exception = e;
}
Assert.IsNotNull (exception, "#1");
Assert.That (exception, Is.TypeOf (typeof (ApplicationException)), "#2");
Assert.AreEqual (1, callTime, "#3");
exception = null;
try {
var foo = threadLocal.Value;
} catch (Exception e) {
exception = e;
}
Assert.IsNotNull (exception, "#4");
Assert.That (exception, Is.TypeOf (typeof (ApplicationException)), "#5");
Assert.AreEqual (2, callTime, "#6");
}
[Category ("NotDotNet")] // nunit results in stack overflow
public void MultipleReferenceToValueTest ()
{
try {
threadLocal = new ThreadLocal<int> (() => threadLocal.Value + 1);
var v = threadLocal.Value;
Assert.Fail ("#1");
} catch (InvalidOperationException e) {
}
}
[Test]
public void DefaultThreadLocalInitTest ()
{
var local = new ThreadLocal<DateTime> ();
var local2 = new ThreadLocal<object> ();
Assert.AreEqual (default (DateTime), local.Value);
Assert.AreEqual (default (object), local2.Value);
}
[Test, ExpectedException (typeof (ObjectDisposedException))]
public void DisposedOnValueTest ()
{
var tl = new ThreadLocal<int> ();
tl.Dispose ();
var value = tl.Value;
}
[Test, ExpectedException (typeof (ObjectDisposedException))]
public void DisposedOnIsValueCreatedTest ()
{
var tl = new ThreadLocal<int> ();
tl.Dispose ();
var value = tl.IsValueCreated;
}
[Test]
public void PerThreadException ()
{
int callTime = 0;
threadLocal = new ThreadLocal<int> (() => {
if (callTime == 1)
throw new ApplicationException ("foo");
Interlocked.Increment (ref callTime);
return 43;
});
Exception exception = null;
var foo = threadLocal.Value;
bool thread_value_created = false;
Assert.AreEqual (43, foo, "#3");
Thread t = new Thread ((object o) => {
try {
var foo2 = threadLocal.Value;
} catch (Exception e) {
exception = e;
}
// should be false and not throw
thread_value_created = threadLocal.IsValueCreated;
});
t.Start ();
t.Join ();
Assert.AreEqual (false, thread_value_created, "#4");
Assert.IsNotNull (exception, "#5");
Assert.That (exception, Is.TypeOf (typeof (ApplicationException)), "#6");
}
void AssertThreadLocal ()
{
Assert.IsFalse (threadLocal.IsValueCreated, "#1");
Assert.AreEqual (42, threadLocal.Value, "#2");
Assert.IsTrue (threadLocal.IsValueCreated, "#3");
Assert.AreEqual (42, threadLocal.Value, "#4");
Assert.AreEqual (1, nTimes, "#5");
}
class SetMreOnFinalize
{
ManualResetEventSlim m_mres;
public SetMreOnFinalize (ManualResetEventSlim mres)
{
m_mres = mres;
}
~SetMreOnFinalize()
{
m_mres.Set();
}
}
[Test]
[Category ("NotWorking")] // Finalizers aren't guaranteed
public void DisposeOnThreadExit ()
{
var threadLocal = new ThreadLocal<SetMreOnFinalize>();
var mres = new ManualResetEventSlim(false);
var thread = new Thread (() => { threadLocal.Value = new SetMreOnFinalize (mres); });
thread.Start ();
thread.Join ();
SpinWait.SpinUntil (() => {
GC.Collect();
GC.WaitForPendingFinalizers();
GC.Collect();
return mres.IsSet;
}, 500);
if (!mres.IsSet)
Assert.Fail ("Finalizer didn't run after thread termination");
}
}
}
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