public void Can_watch_folder()
{
CreateOrCleanDirectory("pickup");
var copied = 0;
var observable = new DeliveryFolderObservable("pickup", "*.json", true);
observable.Subscribe(e =>
{
Console.WriteLine(e.EventArgs.FullPath);
copied++;
});
var emails = MessageFactory.EmailWithHtmlAndText(100);
foreach(var email in emails)
{
var path = Path.Combine("pickup", email.Id + ".json");
File.WriteAllText(path, _serializer.SerializeToString(email));
}
Assert.AreEqual(100, copied);
CleanDirectory("pickup");
}
public void Can_subscribe_to_watch_folder_and_deliver_new_emails()
{
CreateOrCleanDirectory("pickup");
var block = new ManualResetEvent(false);
const int trials = 500;
var inMemory = new InMemoryEmailService();
var config = new DeliveryConfiguration();
var service = new DeliveryService(inMemory, config);
// Wire up delivery subject and start service
var collection = new Subject<EmailMessage>();
service.Send(collection);
service.Start();
// Shuttles files into the subject
var handled = 0;
var folder = new DeliveryFolderObservable("pickup", "*.json", true);
folder.Subscribe(e =>
{
if (File.Exists(e.EventArgs.FullPath))
{
string json = null;
var read = false;
while (!read)
{
try
{
json = File.ReadAllText(e.EventArgs.FullPath);
read = true;
}
catch
{
// The FileSystemWatcher suuuuuuucks
}
}
var message = _serializer.DeserializeFromString(json);
collection.OnNext(message);
handled++;
if(File.Exists(e.EventArgs.FullPath))
{
File.Delete(e.EventArgs.FullPath);
if (handled == trials)
{
block.Set();
}
}
else
{
Console.WriteLine("Mayday! We delivered an email more than once!");
block.Set();
}
}
});
// Meanwhile, back at the ranch, emails are a'brewin'...
var queued = 0;
Task.Factory.StartNew(() =>
{
var emails = MessageFactory.EmailWithHtmlAndText(trials);
foreach (var email in emails)
{
File.WriteAllText(Path.Combine("pickup", email.Id + ".json"), _serializer.SerializeToString(email));
queued++;
}
});
block.WaitOne();
Console.WriteLine(service.DeliveryRate);
Assert.AreEqual(queued, inMemory.Messages.Count, "Could not keep up with demand");
Assert.AreEqual(trials, inMemory.Messages.Count, "Did not deliver quota");
Console.WriteLine(queued);
CleanDirectory("pickup");
}