public void Start_IfStarted_Throws()
{
// Arrange
ITaskSeriesCommand command = CreateStubCommand(TimeSpan.FromDays(1));
using (ITaskSeriesTimer product = CreateProductUnderTest(command))
{
product.Start();
// Act & Assert
ExceptionAssert.ThrowsInvalidOperation(() => product.Start(),
"The timer has already been started; it cannot be restarted.");
}
}
public void StopAsync_TriggersCommandCancellationToken()
{
// Arrange
using (EventWaitHandle executeStarted = new ManualResetEvent(initialState: false))
using (EventWaitHandle executeFinished = new ManualResetEvent(initialState: false))
{
bool cancellationTokenSignalled = false;
ITaskSeriesCommand command = CreateCommand((cancellationToken) =>
{
Assert.True(executeStarted.Set()); // Guard
cancellationTokenSignalled = cancellationToken.WaitHandle.WaitOne(1000);
Assert.True(executeFinished.Set()); // Guard
return(new TaskSeriesCommandResult(wait: Task.Delay(0)));
});
using (ITaskSeriesTimer product = CreateProductUnderTest(command))
{
product.Start();
Assert.True(executeStarted.WaitOne(1000)); // Guard
CancellationToken cancellationToken = CancellationToken.None;
// Act
Task task = product.StopAsync(cancellationToken);
// Assert
Assert.NotNull(task);
task.GetAwaiter().GetResult();
Assert.True(executeFinished.WaitOne(1000)); // Guard
Assert.True(cancellationTokenSignalled);
}
}
}
public void StopAsync_DoesNotWaitForSubsequentWaitToCompleteTask()
{
// Arrange
using (EventWaitHandle executeStarted = new ManualResetEvent(initialState: false))
{
ITaskSeriesCommand command = CreateCommand(() =>
{
Assert.True(executeStarted.Set()); // Guard
return(new TaskSeriesCommandResult(wait: Task.Delay(2000)));
});
using (ITaskSeriesTimer product = CreateProductUnderTest(command))
{
product.Start();
Assert.True(executeStarted.WaitOne(1000)); // Guard
// Wait for the background thread to enter the long wait.
Thread.Sleep(5);
CancellationToken cancellationToken = CancellationToken.None;
// Act
Task task = product.StopAsync(cancellationToken);
// Assert
Assert.NotNull(task);
Assert.True(task.WaitUntilCompleted(1000));
Assert.True(task.IsCompleted);
}
}
}
public void Start_AfterInitialWait_Executes()
{
// Arrange
// Detect the difference between waiting and not waiting, but keep the test execution time fast.
TimeSpan initialDelay = TimeSpan.FromMilliseconds(50);
using (EventWaitHandle executedWaitHandle = new ManualResetEvent(initialState: false))
{
ITaskSeriesCommand command = CreateCommand(() =>
{
Assert.True(executedWaitHandle.Set()); // Guard
return(new TaskSeriesCommandResult(wait: Task.Delay(TimeSpan.FromDays(1))));
});
using (ITaskSeriesTimer product = CreateProductUnderTest(command, Task.Delay(initialDelay)))
{
Stopwatch stopwatch = new Stopwatch();
stopwatch.Start();
// Act
product.Start();
// Assert
Assert.True(executedWaitHandle.WaitOne(1000)); // Guard
stopwatch.Stop();
// Account for the resolution of the system timer; otherwise, the test may fail intermittently
// (as the timer may fire slightly before the precise expected value).
TimeSpan effectiveActualDelay = AddSystemTimerResolution(stopwatch.Elapsed);
AssertGreaterThan(initialDelay, effectiveActualDelay);
}
}
}
internal async Task ProcessMessageAsync(IStorageQueueMessage message, TimeSpan visibilityTimeout, CancellationToken cancellationToken)
{
try
{
if (!await _queueProcessor.BeginProcessingMessageAsync(message.SdkObject, cancellationToken))
{
return;
}
FunctionResult result = null;
using (ITaskSeriesTimer timer = CreateUpdateMessageVisibilityTimer(_queue, message, visibilityTimeout, _backgroundExceptionDispatcher))
{
timer.Start();
result = await _triggerExecutor.ExecuteAsync(message, cancellationToken);
await timer.StopAsync(cancellationToken);
}
await _queueProcessor.CompleteProcessingMessageAsync(message.SdkObject, result, cancellationToken);
}
catch (OperationCanceledException)
{
// Don't fail the top-level task when an inner task cancels.
}
catch (Exception exception)
{
// Immediately report any unhandled exception from this background task.
// (Don't capture the exception as a fault of this Task; that would delay any exception reporting until
// Stop is called, which might never happen.)
_backgroundExceptionDispatcher.Throw(ExceptionDispatchInfo.Capture(exception));
}
}
public void Dispose_TriggersCommandCancellationToken()
{
// Arrange
TimeSpan interval = TimeSpan.Zero;
using (EventWaitHandle executeStarted = new ManualResetEvent(initialState: false))
using (EventWaitHandle executeFinished = new ManualResetEvent(initialState: false))
{
bool cancellationTokenSignalled = false;
ITaskSeriesCommand command = CreateCommand((cancellationToken) =>
{
Assert.True(executeStarted.Set()); // Guard
cancellationTokenSignalled = cancellationToken.WaitHandle.WaitOne(1000);
Assert.True(executeFinished.Set()); // Guard
return(new TaskSeriesCommandResult(wait: Task.Delay(0)));
});
using (ITaskSeriesTimer product = CreateProductUnderTest(command))
{
product.Start();
Assert.True(executeStarted.WaitOne(1000)); // Guard
// Act
product.Dispose();
// Assert
Assert.True(executeFinished.WaitOne(1000)); // Guard
Assert.True(cancellationTokenSignalled);
}
}
}
public void Dispose_IfStarted_DoesNotWaitForExecuteToFinish()
{
// Arrange
using (EventWaitHandle executeStarted = new ManualResetEvent(initialState: false))
using (EventWaitHandle stopExecute = new ManualResetEvent(initialState: false))
{
bool waitedForCommandToFinish = false;
ITaskSeriesCommand command = CreateCommand(() =>
{
Assert.True(executeStarted.Set()); // Guard
stopExecute.WaitOne(1000);
waitedForCommandToFinish = true;
return(new TaskSeriesCommandResult(wait: Task.Delay(0)));
});
using (ITaskSeriesTimer product = CreateProductUnderTest(command))
{
product.Start();
Assert.True(executeStarted.WaitOne(1000)); // Guard
// Act & Assert
product.Dispose();
// Assert
Assert.False(waitedForCommandToFinish);
// Cleanup
Assert.True(stopExecute.Set()); // Guard
}
}
}
public void StopAsync_WhenCanceled_DoesNotWaitForExecuteToFinishToCompleteTask()
{
// Arrange
using (EventWaitHandle executeStarted = new ManualResetEvent(initialState: false))
{
ITaskSeriesCommand command = CreateCommand(() =>
{
Assert.True(executeStarted.Set()); // Guard
return(new TaskSeriesCommandResult(wait: Task.Delay(2000)));
});
using (ITaskSeriesTimer product = CreateProductUnderTest(command))
{
product.Start();
Assert.True(executeStarted.WaitOne(1000)); // Guard
CancellationToken cancellationToken = new CancellationToken(canceled: true);
// Act
Task task = product.StopAsync(cancellationToken);
// Assert
Assert.NotNull(task);
Assert.True(task.WaitUntilCompleted(1000));
Assert.True(task.IsCompleted);
}
}
}
public async Task StartAsync(CancellationToken cancellationToken)
{
await _innerListener.StartAsync(cancellationToken);
await _heartbeatCommand.TryExecuteAsync(cancellationToken);
_timer.Start();
}
// Begin watchers.
public ValueWatcher(IReadOnlyDictionary<string, IWatcher> watches, CloudBlockBlob blobResults,
TextWriter consoleOutput, IBackgroundExceptionDispatcher backgroundExceptionDispatcher)
{
ValueWatcherCommand command = new ValueWatcherCommand(watches, blobResults, consoleOutput);
_command = command;
_timer = ValueWatcherCommand.CreateTimer(command, backgroundExceptionDispatcher);
_timer.Start();
}
// Begin watchers.
public ValueWatcher(IReadOnlyDictionary <string, IWatcher> watches, CloudBlockBlob blobResults,
TextWriter consoleOutput, IBackgroundExceptionDispatcher backgroundExceptionDispatcher)
{
ValueWatcherCommand command = new ValueWatcherCommand(watches, blobResults, consoleOutput);
_command = command;
_timer = ValueWatcherCommand.CreateTimer(command, backgroundExceptionDispatcher);
_timer.Start();
}
public static RenewableLockHandle CreateRenewableLockHandle(TimeSpan leasePeriod,
IDistributedLockManager distributedLockManager, IDistributedLock lockHandle, Func <bool> preExecuteCheck)
{
ITaskSeriesTimer renewal =
CreateLeaseRenewalTimer(leasePeriod, distributedLockManager, lockHandle, preExecuteCheck);
renewal.Start();
return(new RenewableLockHandle(lockHandle, renewal));
}
private async Task ProcessMessageAsync(IStorageQueueMessage message, TimeSpan visibilityTimeout,
CancellationToken cancellationToken)
{
try
{
bool succeeded;
using (ITaskSeriesTimer timer = CreateUpdateMessageVisibilityTimer(_queue, message, visibilityTimeout,
_backgroundExceptionDispatcher))
{
timer.Start();
succeeded = await _triggerExecutor.ExecuteAsync(message, cancellationToken);
await timer.StopAsync(cancellationToken);
}
// Need to call Delete message only if function succeeded.
if (succeeded)
{
await DeleteMessageAsync(message, cancellationToken);
}
else if (_poisonQueue != null)
{
if (message.DequeueCount >= _maxDequeueCount)
{
_log.WriteLine("Message has reached MaxDequeueCount of {0}. Moving message to queue '{1}'.",
_maxDequeueCount,
_poisonQueue.Name);
await CopyToPoisonQueueAsync(message, cancellationToken);
await DeleteMessageAsync(message, cancellationToken);
}
else
{
await ReleaseMessageAsync(message, cancellationToken);
}
}
else
{
// For queues without a corresponding poison queue, leave the message invisible when processing
// fails to prevent a fast infinite loop.
// Specifically, don't call ReleaseMessage(message)
}
}
catch (OperationCanceledException)
{
// Don't fail the top-level task when an inner task cancels.
}
catch (Exception exception)
{
// Immediately report any unhandled exception from this background task.
// (Don't capture the exception as a fault of this Task; that would delay any exception reporting until
// Stop is called, which might never happen.)
_backgroundExceptionDispatcher.Throw(ExceptionDispatchInfo.Capture(exception));
}
}
public Task EnsureAllStartedAsync(CancellationToken cancellationToken)
{
if (!_started)
{
_timer.Start();
_strategy.Start();
_started = true;
}
return(Task.FromResult(0));
}
public void Start_IfDisposed_Throws()
{
// Arrange
ITaskSeriesCommand command = CreateDummyCommand();
ITaskSeriesTimer product = CreateProductUnderTest(command);
product.Dispose();
// Act & Assert
ExceptionAssert.ThrowsObjectDisposed(() => product.Start());
}
public void Dispose_IfStopped_DoesNotThrow()
{
// Arrange
ITaskSeriesCommand command = CreateStubCommand(TimeSpan.Zero);
ITaskSeriesTimer product = CreateProductUnderTest(command);
product.Start();
product.StopAsync(CancellationToken.None).GetAwaiter().GetResult();
// Act & Assert
ExceptionAssert.DoesNotThrow(() => product.Dispose());
}
private static ITaskSeriesTimer StartParameterLogTimer(IRecurrentCommand updateCommand, IWebJobsExceptionHandler exceptionHandler)
{
if (updateCommand == null)
{
return(null);
}
TimeSpan initialDelay = FunctionParameterLogIntervals.InitialDelay;
TimeSpan refreshRate = FunctionParameterLogIntervals.RefreshRate;
ITaskSeriesTimer timer = FixedDelayStrategy.CreateTimer(updateCommand, initialDelay, refreshRate, exceptionHandler);
timer.Start();
return(timer);
}
private static ITaskSeriesTimer StartOutputTimer(IRecurrentCommand updateCommand, IBackgroundExceptionDispatcher backgroundExceptionDispatcher)
{
if (updateCommand == null)
{
return(null);
}
TimeSpan initialDelay = FunctionOutputIntervals.InitialDelay;
TimeSpan refreshRate = FunctionOutputIntervals.RefreshRate;
ITaskSeriesTimer timer = FixedDelayStrategy.CreateTimer(updateCommand, initialDelay, refreshRate, backgroundExceptionDispatcher);
timer.Start();
return(timer);
}
public async Task <IDelayedException> TryExecuteAsync(IFunctionInstance instance, CancellationToken cancellationToken)
{
IDelayedException result;
using (ITaskSeriesTimer timer = CreateHeartbeatTimer(_exceptionHandler))
{
await _heartbeatCommand.TryExecuteAsync(cancellationToken);
timer.Start();
result = await _innerExecutor.TryExecuteAsync(instance, cancellationToken);
await timer.StopAsync(cancellationToken);
}
return(result);
}
public void StopAsync_IfAlreadyStopped_Throws()
{
// Arrange
ITaskSeriesCommand command = CreateStubCommand(TimeSpan.Zero);
using (ITaskSeriesTimer product = CreateProductUnderTest(command))
{
product.Start();
product.StopAsync(CancellationToken.None).GetAwaiter().GetResult();
CancellationToken cancellationToken = CancellationToken.None;
// Act & Assert
ExceptionAssert.ThrowsInvalidOperation(() => product.StopAsync(cancellationToken),
"The timer has already been stopped.");
}
}
public void Start_AfterExecute_WaitsForReturnedWait()
{
// Arrange
bool executedOnce = false;
bool executedTwice = false;
TimeSpan initialInterval = TimeSpan.Zero;
// Detect the difference between waiting and not waiting, but keep the test execution time fast.
TimeSpan subsequentInterval = TimeSpan.FromMilliseconds(5);
Stopwatch stopwatch = new Stopwatch();
using (EventWaitHandle waitForSecondExecution = new ManualResetEvent(initialState: false))
{
ITaskSeriesCommand command = CreateCommand(() =>
{
if (executedTwice)
{
return(new TaskSeriesCommandResult(wait: Task.Delay(TimeSpan.FromDays(1))));
}
if (!executedOnce)
{
stopwatch.Start();
executedOnce = true;
return(new TaskSeriesCommandResult(wait: Task.Delay(subsequentInterval)));
}
else
{
stopwatch.Stop();
executedTwice = true;
Assert.True(waitForSecondExecution.Set()); // Guard
return(new TaskSeriesCommandResult(wait: Task.Delay(initialInterval)));
}
});
using (ITaskSeriesTimer product = CreateProductUnderTest(command))
{
// Act
product.Start();
// Assert
Assert.True(waitForSecondExecution.WaitOne(1000)); // Guard
AssertGreaterThan(subsequentInterval, stopwatch.Elapsed);
}
}
}
internal async Task ProcessMessageAsync(QueueMessage message, TimeSpan visibilityTimeout, CancellationToken cancellationToken)
{
try
{
if (!await _queueProcessor.BeginProcessingMessageAsync(message, cancellationToken).ConfigureAwait(false))
{
return;
}
FunctionResult result = null;
Action <UpdateReceipt> onUpdateReceipt = updateReceipt => { message = message.Update(updateReceipt); };
using (ITaskSeriesTimer timer = CreateUpdateMessageVisibilityTimer(_queue, message, visibilityTimeout, _exceptionHandler, onUpdateReceipt))
{
timer.Start();
result = await _triggerExecutor.ExecuteAsync(message, cancellationToken).ConfigureAwait(false);
await timer.StopAsync(cancellationToken).ConfigureAwait(false);
}
// Use a different cancellation token for shutdown to allow graceful shutdown.
// Specifically, don't cancel the completion or update of the message itself during graceful shutdown.
// Only cancel completion or update of the message if a non-graceful shutdown is requested via _shutdownCancellationTokenSource.
await _queueProcessor.CompleteProcessingMessageAsync(message, result, _shutdownCancellationTokenSource.Token).ConfigureAwait(false);
}
catch (TaskCanceledException)
{
// Don't fail the top-level task when an inner task cancels.
}
catch (OperationCanceledException)
{
// Don't fail the top-level task when an inner task cancels.
}
catch (Exception exception)
{
// Immediately report any unhandled exception from this background task.
// (Don't capture the exception as a fault of this Task; that would delay any exception reporting until
// Stop is called, which might never happen.)
#pragma warning disable AZC0103 // Do not wait synchronously in asynchronous scope.
_exceptionHandler.OnUnhandledExceptionAsync(ExceptionDispatchInfo.Capture(exception)).GetAwaiter().GetResult();
#pragma warning restore AZC0103 // Do not wait synchronously in asynchronous scope.
}
}
public void StopAsync_WaitsForTaskCompletionToCompleteTask()
{
// Arrange
bool executedOnce = false;
bool taskCompleted = false;
using (EventWaitHandle executeStarted = new ManualResetEvent(initialState: false))
using (EventWaitHandle stopExecuteInFiveMilliseconds = new ManualResetEvent(initialState: false))
{
ITaskSeriesCommand command = CreateCommand(async() =>
{
if (executedOnce)
{
return(new TaskSeriesCommandResult(wait: Task.Delay(0)));
}
executedOnce = true;
Assert.True(executeStarted.Set()); // Guard
// Detect the difference between waiting and not waiting, but keep the test execution time fast.
await Task.Delay(5);
taskCompleted = true;
return(new TaskSeriesCommandResult(wait: Task.Delay(0)));
});
using (ITaskSeriesTimer product = CreateProductUnderTest(command))
{
product.Start();
Assert.True(executeStarted.WaitOne(1000)); // Guard
Assert.True(stopExecuteInFiveMilliseconds.Set()); // Guard
CancellationToken cancellationToken = CancellationToken.None;
// Act
Task stopTask = product.StopAsync(cancellationToken);
// Assert
Assert.NotNull(stopTask);
stopTask.GetAwaiter().GetResult();
Assert.True(taskCompleted);
}
}
}
public void Start_IfCommandExecuteAsyncsReturnsCanceledTask_DoesNotCallBackgroundExceptionDispatcher()
{
// Arrange
bool executedOnce = false;
using (EventWaitHandle executedTwiceWaitHandle = new ManualResetEvent(initialState: false))
{
ITaskSeriesCommand command = CreateCommand(() =>
{
if (executedOnce)
{
Assert.True(executedTwiceWaitHandle.Set()); // Guard
return(Task.FromResult(new TaskSeriesCommandResult(Task.Delay(TimeSpan.FromDays(1)))));
}
executedOnce = true;
TaskCompletionSource <TaskSeriesCommandResult> taskSource =
new TaskCompletionSource <TaskSeriesCommandResult>();
taskSource.SetCanceled();
return(taskSource.Task);
});
Mock <IWebJobsExceptionHandler> exceptionHandlerMock =
new Mock <IWebJobsExceptionHandler>(MockBehavior.Strict);
int backgroundExceptionCalls = 0;
exceptionHandlerMock
.Setup(d => d.OnUnhandledExceptionAsync(It.IsAny <ExceptionDispatchInfo>()))
.Callback(() => backgroundExceptionCalls++);
IWebJobsExceptionHandler exceptionHandler = exceptionHandlerMock.Object;
using (ITaskSeriesTimer product = CreateProductUnderTest(command, exceptionHandler))
{
// Act
product.Start();
// Assert
Assert.True(executedTwiceWaitHandle.WaitOne(1000)); // Guard
Assert.Equal(0, backgroundExceptionCalls);
}
}
}
public void StopAsync_WhenExecuteTaskCompletesFaulted_DoesNotThrowOrFault()
{
// Arrange
bool executedOnce = false;
using (EventWaitHandle executeStarted = new ManualResetEvent(initialState: false))
using (EventWaitHandle stopExecuteInFiveMilliseconds = new ManualResetEvent(initialState: false))
{
ITaskSeriesCommand command = CreateCommand(() =>
{
if (executedOnce)
{
return(Task.FromResult(new TaskSeriesCommandResult(wait: Task.Delay(0))));
}
executedOnce = true;
Assert.True(executeStarted.Set()); // Guard
TaskCompletionSource <TaskSeriesCommandResult> taskSource =
new TaskCompletionSource <TaskSeriesCommandResult>();
taskSource.SetException(new InvalidOperationException());
return(taskSource.Task);
});
IWebJobsExceptionHandler ignoreDispatcher = CreateIgnoreBackgroundExceptionDispatcher();
using (ITaskSeriesTimer product = CreateProductUnderTest(command, ignoreDispatcher))
{
product.Start();
Assert.True(executeStarted.WaitOne(1000)); // Guard
CancellationToken cancellationToken = CancellationToken.None;
// Act
Task task = product.StopAsync(cancellationToken);
// Assert
Assert.NotNull(task);
task.GetAwaiter().GetResult();
}
}
}
public void StopAsync_TriggersNotExecutingAgain()
{
// Arrange
using (EventWaitHandle executedOnceWaitHandle = new ManualResetEvent(initialState: false))
{
ITaskSeriesTimer product = null;
Task stop = null;
bool executedOnce = false;
bool executedTwice = false;
ITaskSeriesCommand command = CreateCommand(() =>
{
if (!executedOnce)
{
stop = product.StopAsync(CancellationToken.None);
Assert.True(executedOnceWaitHandle.Set()); // Guard
executedOnce = true;
return(new TaskSeriesCommandResult(wait: Task.Delay(0)));
}
else
{
executedTwice = true;
return(new TaskSeriesCommandResult(wait: Task.Delay(0)));
}
});
using (product = CreateProductUnderTest(command))
{
product.Start();
// Act
bool executed = executedOnceWaitHandle.WaitOne(1000);
// Assert
Assert.True(executed); // Guard
Assert.NotNull(stop);
stop.GetAwaiter().GetResult();
Assert.False(executedTwice);
}
}
}
public void Start_IfCommandExecuteAsyncsReturnsFaultedTask_CallsBackgroundExceptionDispatcher()
{
// Arrange
Exception expectedException = new Exception();
ITaskSeriesCommand command = CreateCommand(() =>
{
TaskCompletionSource <TaskSeriesCommandResult> taskSource =
new TaskCompletionSource <TaskSeriesCommandResult>();
taskSource.SetException(expectedException);
return(taskSource.Task);
});
using (EventWaitHandle exceptionDispatchedWaitHandle = new ManualResetEvent(initialState: false))
{
Mock <IWebJobsExceptionHandler> exceptionHandlerMock =
new Mock <IWebJobsExceptionHandler>(MockBehavior.Strict);
ExceptionDispatchInfo exceptionInfo = null;
exceptionHandlerMock
.Setup(d => d.OnUnhandledExceptionAsync(It.IsAny <ExceptionDispatchInfo>()))
.Callback <ExceptionDispatchInfo>((i) =>
{
exceptionInfo = i;
Assert.True(exceptionDispatchedWaitHandle.Set()); // Guard
});
IWebJobsExceptionHandler exceptionHandler = exceptionHandlerMock.Object;
using (ITaskSeriesTimer product = CreateProductUnderTest(command, exceptionHandler))
{
// Act
product.Start();
// Assert
Assert.True(exceptionDispatchedWaitHandle.WaitOne(1000)); // Guard
Assert.NotNull(exceptionInfo);
Assert.Same(expectedException, exceptionInfo.SourceException);
}
}
}
public void StopAsync_DoesNotWaitForInitialWaitToCompleteTask()
{
// Arrange
ITaskSeriesCommand command = CreateStubCommand(TimeSpan.Zero);
using (ITaskSeriesTimer product = CreateProductUnderTest(command, initialWait: Task.Delay(2000)))
{
product.Start();
// Wait for the background thread to enter the initialWait.
Thread.Sleep(5);
CancellationToken cancellationToken = CancellationToken.None;
// Act
Task task = product.StopAsync(cancellationToken);
// Assert
Assert.NotNull(task);
Assert.True(task.WaitUntilCompleted(1000));
Assert.True(task.IsCompleted);
}
}
public void Start_IfCommandExecuteAsyncsThrows_CallsBackgroundExceptionDispatcher()
{
// Arrange
Exception expectedException = new Exception();
TimeSpan interval = TimeSpan.Zero;
using (EventWaitHandle exceptionDispatchedWaitHandle = new ManualResetEvent(initialState: false))
{
Func <Task <TaskSeriesCommandResult> > execute = () => { throw expectedException; };
ITaskSeriesCommand command = CreateCommand(execute);
Mock <IWebJobsExceptionHandler> exceptionHandlerMock =
new Mock <IWebJobsExceptionHandler>(MockBehavior.Strict);
ExceptionDispatchInfo exceptionInfo = null;
exceptionHandlerMock
.Setup(d => d.OnUnhandledExceptionAsync(It.IsAny <ExceptionDispatchInfo>()))
.Callback <ExceptionDispatchInfo>((i) =>
{
exceptionInfo = i;
Assert.True(exceptionDispatchedWaitHandle.Set()); // Guard
});
IWebJobsExceptionHandler exceptionHandler = exceptionHandlerMock.Object;
using (ITaskSeriesTimer product = CreateProductUnderTest(command, exceptionHandler))
{
// Act
product.Start();
// Assert
bool executed = exceptionDispatchedWaitHandle.WaitOne(1000);
Assert.True(executed);
Assert.NotNull(exceptionInfo);
Assert.Same(expectedException, exceptionInfo.SourceException);
}
}
}
public Task StartAsync(CancellationToken cancellationToken)
{
ThrowIfDisposed();
_timer.Start();
return(Task.FromResult(0));
}