public async Task If_events_have_been_processed_then_the_correct_number_of_remaining_events_is_returned()
{
//arrange
EventHandlerProgress progress = null;
Events.Write(5);
var eventsProcessed = 0;
IUpdateProjectionWhen <IEvent> projector = null;
projector = CreateProjector <IEvent>(e =>
{
if (eventsProcessed == 4)
{
progress = CalculateProgressFor(projector);
}
eventsProcessed++;
});
//act
await RunCatchupSingleBatch(projector);
//assert
progress.BatchRemainingEvents
.Should()
.Be(1);
}
public async Task If_events_have_been_processed_after_initial_catchup_then_the_remaining_time_is_estimated_correctly()
{
//arrange
Events.Write(10);
EventHandlerProgress progress = null;
var eventsProcessed = 0;
IUpdateProjectionWhen <IEvent> projector = null;
projector = CreateProjector <IEvent>(e =>
{
if (eventsProcessed == 15)
{
progress = CalculateProgressFor(projector);
}
VirtualClock.Current.AdvanceBy(TimeSpan.FromSeconds(1));
eventsProcessed++;
});
await RunCatchupSingleBatch(projector);
//new set of events come in
Events.Write(10);
//act
await RunCatchupSingleBatch(projector);
progress.BatchTimeRemaining
.Should()
.Be(TimeSpan.FromSeconds(5));
}
public async Task During_initial_catchup_the_percent_completed_is_estimated_correctly()
{
//arrange
Events.Write(10);
var eventCount = EventStoreDbContext().DisposeAfter(_ => _.Events.Count());
var eventsProcessed = 0;
EventHandlerProgress progress = null;
IUpdateProjectionWhen <IEvent> projector = null;
projector = CreateProjector <IEvent>(e =>
{
if (eventsProcessed == eventCount / 10 + 1)
{
VirtualClock.Current.AdvanceBy(10.Minutes());
progress = CalculateProgressFor(projector);
}
eventsProcessed++;
});
//act
// catch up enough events to hit the if block in the projector
var batchSize = eventCount / 8;
await RunCatchupSingleBatch(projector,
startAtEventId : 0,
batchSize : batchSize);
// assert
progress.InitialCatchupPercentageCompleted
.Should()
.BeInRange(10, 11);
}
public async Task During_initial_catchup_the_remaining_time_is_estimated_correctly_across_multiple_batches()
{
//arrange
Events.Write(20, randomEventTypes: true);
var eventCount = EventStoreDbContext().DisposeAfter(_ => _.Events.Count());
var eventsProcessed = 0;
EventHandlerProgress progress = null;
IUpdateProjectionWhen <IEvent> projector = null;
var numberOfEventsToProcessBeforeCalculating = eventCount / 100;
projector = CreateProjector <IEvent>(e =>
{
eventsProcessed++;
if (eventsProcessed == numberOfEventsToProcessBeforeCalculating)
{
VirtualClock.Current.AdvanceBy(1.Minutes());
progress = CalculateProgressFor(projector);
}
});
//act
var batchSize = eventCount / 1000;
for (var i = 0; i < 13; i++)
{
await RunCatchupSingleBatch(projector,
startAtEventId : 0,
batchSize : batchSize);
}
// assert
var expectedTimeRemaining = TimeRemaining(
1.Minutes(),
eventsProcessed: numberOfEventsToProcessBeforeCalculating,
eventsRemaining: eventCount - numberOfEventsToProcessBeforeCalculating);
Console.WriteLine(new { eventCount, batchSize, eventsProcessed, numberOfEventsToProcessBeforeCalculating, expectedTimeRemaining });
progress.InitialCatchupTimeRemaining
.Should()
.BeCloseTo(expectedTimeRemaining,
precision: (int)6.Minutes().TotalMilliseconds);
}
public override List <Object> solution()
{
m_returnObjects = new List <object>();;
Progress progressForm = new Progress();
progressForm.Cancel += new Progress.EventHandlerCancel(onFormCancel);
Started += new EventHandlerStart(progressForm.onStarted);
Progress += new EventHandlerProgress(progressForm.onProgress);
Finished += new EventHandlerFinish(progressForm.onFinished);
m_worker = new Thread(new ThreadStart(solutionThread));
progressForm.Shown += new EventHandler(onFormShow);
progressForm.ShowDialog();
m_worker.Join();
return(m_returnObjects);
}
public override bool make(List <Object> objects)
{
m_objects = objects;
Progress progressForm = new Progress();
progressForm.Cancel += new Progress.EventHandlerCancel(onFormCancel);
Started += new EventHandlerStart(progressForm.onStarted);
Progress += new EventHandlerProgress(progressForm.onProgress);
ProgressA += new EventHandlerProgressA(progressForm.onProgressA);
ProgressB += new EventHandlerProgressB(progressForm.onProgressB);
Finished += new EventHandlerFinish(progressForm.onFinished);
m_worker = new System.Threading.Thread(new System.Threading.ThreadStart(worker));
progressForm.Shown += new EventHandler(onDialogShown);
progressForm.ShowDialog();
m_worker.Join();
progressForm.Close();
return(true);
}
public override List <Object> opened(bool noSavedOnly)
{
m_returnObjects = new List <object>();;
Progress progressForm = new Progress();
progressForm.Cancel += new Progress.EventHandlerCancel(onFormCancel);
Started += new EventHandlerStart(progressForm.onStarted);
Progress += new EventHandlerProgress(progressForm.onProgress);
ProgressA += new EventHandlerProgressA(progressForm.onProgressA);
Finished += new EventHandlerFinish(progressForm.onFinished);
m_worker = new Thread(new ParameterizedThreadStart(openedThread));
progressForm.Tag = noSavedOnly;
progressForm.Shown += new EventHandler(onFormShow);
progressForm.ShowDialog();
m_worker.Join();
return(m_returnObjects);
}
