public void should_clear_pending_entries_on_purge()
{
_batchSize = 1;
var persistedBatches = new List <List <MatcherEntry> >();
CapturePersistedBatches(persistedBatches);
// Persisting one batch to initialize the persister
EnqueueMessageToPersist();
_matcher.Start();
Wait.Until(() => persistedBatches.Count == 1, 2);
// We block the persister and wait for it to be in the persist method to simulate a long persistence
var batcherShouldResumePersistence = new ManualResetEvent(false);
var batcherIsWaitingForSignalInThePersistenceLoop = WaitForSignalThenCapturePersistedBatches(batcherShouldResumePersistence, persistedBatches);
// Enqueing 4 messages, one will be blocked in "long persistence", 3 will be waiting
EnqueueMessageToPersist();
EnqueueMessageToPersist();
EnqueueMessageToPersist();
EnqueueMessageToPersist();
batcherIsWaitingForSignalInThePersistenceLoop.WaitOne();
// The 3 waiting messages should be purged
var purgedCount = _matcher.Purge();
batcherShouldResumePersistence.Set();
_matcher.Stop();
persistedBatches.Count.ShouldEqual(2);
purgedCount.ShouldEqual(3);
}
