public void TestWorkCancelledException()
{
// prepare workAction to throw exception
Exception currentException = null;
Func <Task> workAction = () => { throw currentException; };
// initialize worker
using (var worker = new MockWorker(workAction))
{
var finishedEvent = new AutoResetEvent(false);
worker.OnWorkFinished += () => { finishedEvent.Set(); };
bool wasError;
worker.OnWorkError += e => wasError = true;
// start worker
worker.Start();
// throw OperationCanceledException
wasError = false;
currentException = new OperationCanceledException();
worker.NotifyWork();
// verify work finished
Assert.IsTrue(finishedEvent.WaitOne(1000));
Assert.IsFalse(wasError);
// throw Exception
wasError = false;
currentException = new Exception();
worker.NotifyWork();
// verify work errored
Assert.IsTrue(finishedEvent.WaitOne());
Assert.IsTrue(wasError);
// throw AggregateException of all OperationCanceledException
wasError = false;
currentException = new AggregateException(new OperationCanceledException(), new OperationCanceledException());
worker.NotifyWork();
// verify work finished
Assert.IsTrue(finishedEvent.WaitOne());
Assert.IsFalse(wasError);
// throw AggregateException of some OperationCanceledException
wasError = false;
currentException = new AggregateException(new OperationCanceledException(), new Exception());
worker.NotifyWork();
// verify work errored
Assert.IsTrue(finishedEvent.WaitOne());
Assert.IsTrue(wasError);
}
}
public void TestOnWorkError()
{
// prepare workAction to throw exception
var expectedException = new Exception();
Func<Task> workAction = () => { throw expectedException; };
// initialize worker
using (var worker = new MockWorker(workAction))
{
// prepare OnWorkError call tracking
Exception actualException = null;
var callEvent = new AutoResetEvent(false);
worker.OnWorkError += e => { actualException = e; callEvent.Set(); };
// start worker
worker.Start();
// notify worker
worker.NotifyWork();
// verify OnWorkError was called with expected exception
var wasCalled = callEvent.WaitOne();
Assert.IsTrue(wasCalled);
Assert.AreSame(expectedException, actualException);
}
}
public void TestNotifyWork()
{
// prepare workAction call tracking
var callEvent = new AutoResetEvent(false);
Func<Task> workAction = () => { callEvent.Set(); return Task.FromResult(false); };
// initialize worker
using (var worker = new MockWorker(workAction))
{
// verify workAction has not been called
var wasCalled = callEvent.WaitOne(1000);
Assert.IsFalse(wasCalled);
// start worker
worker.Start();
// verify workAction has not been called
wasCalled = callEvent.WaitOne(1000);
Assert.IsFalse(wasCalled);
// notify worker
worker.NotifyWork();
// verify workAction has been called
wasCalled = callEvent.WaitOne();
Assert.IsTrue(wasCalled);
// stop worker
worker.Stop();
// verify workAction has not been called
wasCalled = callEvent.WaitOne(1000);
Assert.IsFalse(wasCalled);
}
}
public void TestNotifyWork()
{
// prepare workAction call tracking
var callEvent = new AutoResetEvent(false);
Func <Task> workAction = () => { callEvent.Set(); return(Task.CompletedTask); };
// initialize worker
using (var worker = new MockWorker(workAction))
{
// verify workAction has not been called
var wasCalled = callEvent.WaitOne(1000);
Assert.IsFalse(wasCalled);
// start worker
worker.Start();
// verify workAction has not been called
wasCalled = callEvent.WaitOne(1000);
Assert.IsFalse(wasCalled);
// notify worker
worker.NotifyWork();
// verify workAction has been called
wasCalled = callEvent.WaitOne();
Assert.IsTrue(wasCalled);
// stop worker
worker.Stop();
// verify workAction has not been called
wasCalled = callEvent.WaitOne(1000);
Assert.IsFalse(wasCalled);
}
}
public void TestOnWorkError()
{
// prepare workAction to throw exception
var expectedException = new Exception();
Func <Task> workAction = () => { throw expectedException; };
// initialize worker
using (var worker = new MockWorker(workAction))
{
// prepare OnWorkError call tracking
Exception actualException = null;
var callEvent = new AutoResetEvent(false);
worker.OnWorkError += e => { actualException = e; callEvent.Set(); };
// start worker
worker.Start();
// notify worker
worker.NotifyWork();
// verify OnWorkError was called with expected exception
var wasCalled = callEvent.WaitOne();
Assert.IsTrue(wasCalled);
Assert.AreSame(expectedException, actualException);
}
}
public void TestStartNotified()
{
// prepare workAction call tracking
var callEvent = new AutoResetEvent(false);
Action workAction = () => callEvent.Set();
// initialize worker
using (var worker = new MockWorker(workAction))
{
// verify workAction has not been called
var wasCalled = callEvent.WaitOne(10);
Assert.IsFalse(wasCalled);
// notify worker before it has been started
worker.NotifyWork();
// verify workAction has not been called
wasCalled = callEvent.WaitOne(10);
Assert.IsFalse(wasCalled);
// start worker, it has already been notified
worker.Start();
// verify workAction has been called
wasCalled = callEvent.WaitOne(1000);
Assert.IsTrue(wasCalled);
// stop worker
worker.Stop();
// verify workAction has not been called
wasCalled = callEvent.WaitOne(10);
Assert.IsFalse(wasCalled);
}
}
public void TestRestartNotified()
{
// prepare workAction call tracking
var callEvent = new AutoResetEvent(false);
Action workAction = () => callEvent.Set();
// initialize worker
using (var worker = new MockWorker(workAction))
{
// start worker
worker.Start();
// verify workAction has not been called
var wasCalled = callEvent.WaitOne(10);
Assert.IsFalse(wasCalled);
// notify worker
worker.NotifyWork();
// verify workAction has been called
wasCalled = callEvent.WaitOne(10);
Assert.IsTrue(wasCalled);
// stop worker
worker.Stop();
// wait for worker to idle
worker.WaitForIdle();
// notify worker again
worker.NotifyWork();
//TODO calling callEvent.WaitOne(10) cancels the notify and fails the test, i'm not sure why
//TODO calling Thread.Sleep(10) instead of callEvent.WaitOne has the same effect
// verify workAction has not been called
wasCalled = callEvent.WaitOne(10);
Assert.IsFalse(wasCalled);
// start worker again, it has already been notified
worker.Start();
// verify workAction has been called
wasCalled = callEvent.WaitOne(1000);
Assert.IsTrue(wasCalled);
}
}
public void TestRestart()
{
// prepare workAction call tracking
var callEvent = new AutoResetEvent(false);
Action workAction = () => callEvent.Set();
// initialize worker
using (var worker = new MockWorker(workAction))
{
// start worker
worker.Start();
// verify workAction has not been called
var wasCalled = callEvent.WaitOne(1000);
Assert.IsFalse(wasCalled);
// notify worker
worker.NotifyWork();
// verify workAction has been called
wasCalled = callEvent.WaitOne(10);
Assert.IsTrue(wasCalled);
// stop worker
worker.Stop();
// wait for worker to idle
worker.WaitForIdle();
// verify workAction has not been called
wasCalled = callEvent.WaitOne(10);
Assert.IsFalse(wasCalled);
// start worker again
worker.Start();
// notify worker
worker.NotifyWork();
// verify workAction has been called
wasCalled = callEvent.WaitOne(10);
Assert.IsTrue(wasCalled);
}
}
public void TestWorkAfterCancellation()
{
// create a work action that will throw a cancellation exception on its first call
var workedEvent = new AutoResetEvent(false);
var workCount = 0;
Func <Task> workAction = () =>
{
try
{
workCount++;
if (workCount == 1)
{
throw new OperationCanceledException();
}
return(Task.CompletedTask);
}
finally
{
workedEvent.Set();
}
};
// initialize worker
using (var worker = new MockWorker(workAction))
{
worker.Start();
// notify and verify work was performed
worker.NotifyWork();
Assert.IsTrue(workedEvent.WaitOne());
Assert.AreEqual(1, workCount);
// the first work action cancelled, need to verify that a second work action can be performed
// notify and verify work was performed
worker.NotifyWork();
Assert.IsTrue(workedEvent.WaitOne());
Assert.AreEqual(2, workCount);
}
}
public void TestWorkCancelledException()
{
// prepare workAction to throw exception
Exception currentException = null;
Func<Task> workAction = () => { throw currentException; };
// initialize worker
using (var worker = new MockWorker(workAction))
{
var finishedEvent = new AutoResetEvent(false);
worker.OnWorkFinished += () => { finishedEvent.Set(); };
bool wasError;
worker.OnWorkError += e => wasError = true;
// start worker
worker.Start();
// throw OperationCanceledException
wasError = false;
currentException = new OperationCanceledException();
worker.NotifyWork();
// verify work finished
Assert.IsTrue(finishedEvent.WaitOne(1000));
Assert.IsFalse(wasError);
// throw Exception
wasError = false;
currentException = new Exception();
worker.NotifyWork();
// verify work errored
Assert.IsTrue(finishedEvent.WaitOne());
Assert.IsTrue(wasError);
// throw AggregateException of all OperationCanceledException
wasError = false;
currentException = new AggregateException(new OperationCanceledException(), new OperationCanceledException());
worker.NotifyWork();
// verify work finished
Assert.IsTrue(finishedEvent.WaitOne());
Assert.IsFalse(wasError);
// throw AggregateException of some OperationCanceledException
wasError = false;
currentException = new AggregateException(new OperationCanceledException(), new Exception());
worker.NotifyWork();
// verify work errored
Assert.IsTrue(finishedEvent.WaitOne());
Assert.IsTrue(wasError);
}
}
public void TestWorkAfterCancellation()
{
// create a work action that will throw a cancellation exception on its first call
var workedEvent = new AutoResetEvent(false);
var workCount = 0;
Func<Task> workAction = () =>
{
try
{
workCount++;
if (workCount == 1)
throw new OperationCanceledException();
return Task.FromResult(false);
}
finally
{
workedEvent.Set();
}
};
// initialize worker
using (var worker = new MockWorker(workAction))
{
worker.Start();
// notify and verify work was performed
worker.NotifyWork();
Assert.IsTrue(workedEvent.WaitOne());
Assert.AreEqual(1, workCount);
// the first work action cancelled, need to verify that a second work action can be performed
// notify and verify work was performed
worker.NotifyWork();
Assert.IsTrue(workedEvent.WaitOne());
Assert.AreEqual(2, workCount);
}
}