public void CallbackTechnique(bool hasReturnType)
{
_hasReturnType = hasReturnType;
LongTask longTask;
if (_hasReturnType)
{
longTask = new LongTask <int>(LongTaskMilliseconds);
}
else
{
longTask = new LongTask(LongTaskMilliseconds);
}
IAsyncResult asyncResult;
if (_hasReturnType)
{
asyncResult = ((LongTask <int>)longTask).BeginDoTask(IntInput, TaskCompleted, longTask);
}
else
{
asyncResult = longTask.BeginDoTask(TaskCompleted, longTask);
}
_mre.WaitOne(); //Block the main thread until async thread finishes executing the call back
AssertTaskCompleted(asyncResult);
Assert.False(asyncResult.CompletedSynchronously, "Should not have completed synchronously.");
}
public void PollUntilCompleteTechnique(bool hasReturnType)
{
_hasReturnType = hasReturnType;
LongTask longTask;
if (_hasReturnType)
{
longTask = new LongTask <int>(LongTaskMilliseconds);
}
else
{
longTask = new LongTask(LongTaskMilliseconds);
}
IAsyncResult asyncResult = longTask.BeginDoTask(null, null);
var mres = new ManualResetEventSlim();
while (!asyncResult.IsCompleted)
{
mres.Wait(1);
}
AssertTaskCompleted(asyncResult);
Assert.False(asyncResult.CompletedSynchronously, "Should not have completed synchronously.");
}
public void WaitUntilCompleteTechnique(bool hasReturnType)
{
_hasReturnType = hasReturnType;
LongTask longTask;
if (_hasReturnType)
longTask = new LongTask<int>(LongTaskMilliseconds);
else
longTask = new LongTask(LongTaskMilliseconds);
// Prove that the Wait-until-done technique works
IAsyncResult asyncResult = longTask.BeginDoTask(null, null);
longTask.EndDoTask(asyncResult);
AssertTaskCompleted(asyncResult);
Assert.False(asyncResult.CompletedSynchronously, "Should not have completed synchronously.");
}
/// <summary>
/// Method used by the callback implementation by the APM
/// </summary>
/// <param name="ar"></param>
private void TaskCompleted(IAsyncResult ar)
{
if (_hasReturnType)
{
LongTask <int> lt = (LongTask <int>)ar.AsyncState;
int retValue = lt.EndDoTask(ar);
if (retValue != IntInput)
{
Assert.True(false, string.Format("Mismatch: Return = {0} vs Expect = {1}", retValue, IntInput));
}
}
else
{
LongTask lt = (LongTask)ar.AsyncState;
lt.EndDoTask(ar);
}
_mre.Set();
}
public void PollUntilCompleteTechnique(bool hasReturnType)
{
_hasReturnType = hasReturnType;
LongTask longTask;
if (_hasReturnType)
longTask = new LongTask<int>(LongTaskMilliseconds);
else
longTask = new LongTask(LongTaskMilliseconds);
IAsyncResult asyncResult = longTask.BeginDoTask(null, null);
while (!asyncResult.IsCompleted)
{
Task.Delay(300).Wait();
}
AssertTaskCompleted(asyncResult);
Assert.False(asyncResult.CompletedSynchronously, "Should not have completed synchronously.");
}
public void WaitOnAsyncWaitHandleTechnique(bool hasReturnType)
{
_hasReturnType = hasReturnType;
LongTask longTask;
if (_hasReturnType)
{
longTask = new LongTask <int>(LongTaskMilliseconds);
}
else
{
longTask = new LongTask(LongTaskMilliseconds);
}
IAsyncResult asyncResult = longTask.BeginDoTask(null, null);
asyncResult.AsyncWaitHandle.WaitOne();
AssertTaskCompleted(asyncResult);
Assert.False(asyncResult.CompletedSynchronously, "Should not have completed synchronously.");
}
public void WaitUntilCompleteTechnique(bool hasReturnType)
{
_hasReturnType = hasReturnType;
LongTask longTask;
if (_hasReturnType)
{
longTask = new LongTask <int>(LongTaskMilliseconds);
}
else
{
longTask = new LongTask(LongTaskMilliseconds);
}
// Prove that the Wait-until-done technique works
IAsyncResult asyncResult = longTask.BeginDoTask(null, null);
longTask.EndDoTask(asyncResult);
AssertTaskCompleted(asyncResult);
Assert.False(asyncResult.CompletedSynchronously, "Should not have completed synchronously.");
}
/// <summary>
/// Method that tests that the four APM patterns works
/// </summary>
/// <returns></returns>
internal void RealRun()
{
IAsyncResult ar;
LongTask lt = null;
if (_hasReturnType)
lt = new LongTask<int>(LongTaskSeconds);
else
lt = new LongTask(LongTaskSeconds);
//1. Prove that the Wait-until-done technique works
ar = lt.BeginDoTask(null, null);
lt.EndDoTask(ar);
// verify task completed
if (!VerifyTaskCompleted(ar))
Assert.True(false, string.Format("Wait-until-done: Task is not completed"));
Debug.WriteLine("Wait-until-Done -- Task completed");
//2. Prove that the Polling technique works
ar = lt.BeginDoTask(null, null);
while (!ar.IsCompleted)
{
Task delay = Task.Delay(1000);
delay.Wait();
//Thread.Sleep(1000);
}
// verify task completed
if (!VerifyTaskCompleted(ar))
Assert.True(false, string.Format("Polling: Task is not completed"));
Debug.WriteLine("Polling -- Task completed");
//3. Prove the AsyncWaitHandle works
ar = lt.BeginDoTask(null, null);
ar.AsyncWaitHandle.WaitOne();
// verify task completed
if (!VerifyTaskCompleted(ar))
Assert.True(false, string.Format("wait via AsyncWaitHandle: Task is not completed"));
Debug.WriteLine("Wait on AsyncWaitHandle -- Task completed");
//4. Prove that the Callback technique works
if (_hasReturnType)
ar = ((LongTask<int>)lt).BeginDoTask(INTINPUT, TaskCompleted, lt);
else
ar = lt.BeginDoTask(TaskCompleted, lt);
_mre.WaitOne(); //Block the main thread until async thread finishes executing the call back
// verify task completed
if (!VerifyTaskCompleted(ar))
Assert.True(false, string.Format("Callback: Task is not completed"));
Debug.WriteLine("Callback -- Task completed");
//reaching this point means that the test didnt encounter any crashes or hangs.
//So set the test as passed by returning true
Assert.False(ar.CompletedSynchronously, "Should not have completed synchronously.");
// Cleanup
_mre.Dispose();
}
public void WaitOnAsyncWaitHandleTechnique(bool hasReturnType)
{
_hasReturnType = hasReturnType;
LongTask longTask;
if (_hasReturnType)
longTask = new LongTask<int>(LongTaskMilliseconds);
else
longTask = new LongTask(LongTaskMilliseconds);
IAsyncResult asyncResult = longTask.BeginDoTask(null, null);
asyncResult.AsyncWaitHandle.WaitOne();
AssertTaskCompleted(asyncResult);
Assert.False(asyncResult.CompletedSynchronously, "Should not have completed synchronously.");
}
public void CallbackTechnique(bool hasReturnType)
{
_hasReturnType = hasReturnType;
LongTask longTask;
if (_hasReturnType)
longTask = new LongTask<int>(LongTaskMilliseconds);
else
longTask = new LongTask(LongTaskMilliseconds);
IAsyncResult asyncResult;
if (_hasReturnType)
asyncResult = ((LongTask<int>)longTask).BeginDoTask(IntInput, TaskCompleted, longTask);
else
asyncResult = longTask.BeginDoTask(TaskCompleted, longTask);
_mre.WaitOne(); //Block the main thread until async thread finishes executing the call back
AssertTaskCompleted(asyncResult);
Assert.False(asyncResult.CompletedSynchronously, "Should not have completed synchronously.");
}
/// <summary>
/// Method that tests that the four APM patterns works
/// </summary>
/// <returns></returns>
internal void RealRun()
{
IAsyncResult ar;
LongTask lt = null;
if (_hasReturnType)
{
lt = new LongTask <int>(LongTaskSeconds);
}
else
{
lt = new LongTask(LongTaskSeconds);
}
//1. Prove that the Wait-until-done technique works
ar = lt.BeginDoTask(null, null);
lt.EndDoTask(ar);
// verify task completed
if (!VerifyTaskCompleted(ar))
{
Assert.True(false, string.Format("Wait-until-done: Task is not completed"));
}
Debug.WriteLine("Wait-until-Done -- Task completed");
//2. Prove that the Polling technique works
ar = lt.BeginDoTask(null, null);
while (!ar.IsCompleted)
{
Task delay = Task.Delay(1000);
delay.Wait();
//Thread.Sleep(1000);
}
// verify task completed
if (!VerifyTaskCompleted(ar))
{
Assert.True(false, string.Format("Polling: Task is not completed"));
}
Debug.WriteLine("Polling -- Task completed");
//3. Prove the AsyncWaitHandle works
ar = lt.BeginDoTask(null, null);
ar.AsyncWaitHandle.WaitOne();
// verify task completed
if (!VerifyTaskCompleted(ar))
{
Assert.True(false, string.Format("wait via AsyncWaitHandle: Task is not completed"));
}
Debug.WriteLine("Wait on AsyncWaitHandle -- Task completed");
//4. Prove that the Callback technique works
if (_hasReturnType)
{
ar = ((LongTask <int>)lt).BeginDoTask(INTINPUT, TaskCompleted, lt);
}
else
{
ar = lt.BeginDoTask(TaskCompleted, lt);
}
_mre.WaitOne(); //Block the main thread until async thread finishes executing the call back
// verify task completed
if (!VerifyTaskCompleted(ar))
{
Assert.True(false, string.Format("Callback: Task is not completed"));
}
Debug.WriteLine("Callback -- Task completed");
//reaching this point means that the test didnt encounter any crashes or hangs.
//So set the test as passed by returning true
Assert.False(ar.CompletedSynchronously, "Should not have completed synchronously.");
// Cleanup
_mre.Dispose();
}
