public void Can_return_message_after_queue_has_been_disposed()
{
// Arrange
var queuePath = Path.Combine(Path.GetTempPath(), Guid.NewGuid().ToString());
var item1 = new DispatchItem(new XUri("http://a"), new DispatcherEvent(new XDoc("msg"), new XUri("http://channl"), new XUri("http://resource")), "a");
var dispatchResult = new Result<bool>();
var dispatchQueue = new PersistentPubSubDispatchQueue(queuePath, TaskTimerFactory.Current, 1.Minutes(), i => dispatchResult);
dispatchQueue.Enqueue(item1);
// Act
dispatchQueue.Dispose();
dispatchResult.Return(true);
// Assert
// should not have thrown on the return, that is all
}
public void Can_dispatch_items()
{
// Arrange
var dispatched = new List<DispatchItem>();
Func<DispatchItem, Result<bool>> handler = (i) => {
dispatched.Add(i);
var result = new Result<bool>();
result.Return(true);
return result;
};
var dispatchQueue = new PersistentPubSubDispatchQueue(Path.Combine(Path.GetTempPath(), Guid.NewGuid().ToString()), TaskTimerFactory.Current, 1.Seconds(), handler);
var item1 = new DispatchItem(new XUri("http://a"), new DispatcherEvent(new XDoc("msg"), new XUri("http://channl"), new XUri("http://resource")), "a");
var item2 = new DispatchItem(new XUri("http://b"), new DispatcherEvent(new XDoc("msg"), new XUri("http://channl"), new XUri("http://resource")), "b");
// Act
dispatchQueue.Enqueue(item1);
dispatchQueue.Enqueue(item2);
// Assert
Assert.IsTrue(Wait.For(() => dispatched.Count == 2, 5.Seconds()), "items were not dispatched in time");
Assert.AreEqual(item1.Location, dispatched[0].Location, "wrong item location for first dispatched item");
Assert.AreEqual(item2.Location, dispatched[1].Location, "wrong item location for second dispatched item");
}
public void RegisterOrUpdate(PubSubSubscriptionSet set)
{
lock(_repository) {
var subscriptionDocument = set.AsDocument();
subscriptionDocument.Attr("location", set.Location).Attr("accesskey", set.AccessKey);
subscriptionDocument.Save(Path.Combine(_queueRootPath, set.Location + ".xml"));
if(_repository.ContainsKey(set.Location)) {
return;
}
var queue = new PersistentPubSubDispatchQueue(Path.Combine(_queueRootPath, XUri.EncodeSegment(set.Location)), _taskTimerFactory, _retryTime, _handler);
_repository[set.Location] = queue;
}
}
public void ClearAndDisposed_queue_throws_on_access()
{
// Arrange
var queuePath = Path.Combine(Path.GetTempPath(), Guid.NewGuid().ToString());
var dispatchQueue = new PersistentPubSubDispatchQueue(queuePath, TaskTimerFactory.Current, 1.Minutes(), i => new Result<bool>().WithReturn(true));
// Act
dispatchQueue.DeleteAndDispose();
// Assert
try {
var item = new DispatchItem(new XUri("http://a"), new DispatcherEvent(new XDoc("msg"), new XUri("http://channl"), new XUri("http://resource")), "a");
dispatchQueue.Enqueue(item);
Assert.Fail("Enqueue didn't throw");
} catch(ObjectDisposedException) {
} catch(AssertionException) {
throw;
} catch(Exception e) {
Assert.Fail(string.Format("Enqueue threw unexpected exception: {0}", e));
}
}
public void Failed_dispatch_retries_after_sleep()
{
// Arrange
var item1 = new DispatchItem(new XUri("http://a"), new DispatcherEvent(new XDoc("msg"), new XUri("http://channl"), new XUri("http://resource")), "a");
var item2 = new DispatchItem(new XUri("http://b"), new DispatcherEvent(new XDoc("msg"), new XUri("http://channl"), new XUri("http://resource")), "b");
var dispatched = new List<Tuplet<DateTime, DispatchItem>>();
var dispatchCounter = 0;
Func<DispatchItem, Result<bool>> handler = (i) => {
dispatchCounter++;
dispatched.Add(new Tuplet<DateTime, DispatchItem>(DateTime.UtcNow, i));
var result = new Result<bool>();
result.Return(dispatchCounter > 2);
return result;
};
var dispatchQueue = new PersistentPubSubDispatchQueue(Path.Combine(Path.GetTempPath(), Guid.NewGuid().ToString()), TaskTimerFactory.Current, 1.Seconds(), handler);
// Act
dispatchQueue.Enqueue(item1);
dispatchQueue.Enqueue(item2);
// Assert
Assert.IsTrue(Wait.For(() => dispatched.Count >= 4, 10.Seconds()), "items were not dispatched in time");
Assert.AreEqual(item1.Location, dispatched[0].Item2.Location, "wrong item location for first failure item");
var dispatchTiming1 = dispatched[1].Item1 - dispatched[0].Item1;
Assert.IsTrue(dispatchTiming1 >= 1.Seconds(), "expected re-try in more than 1 second, was " + dispatchTiming1);
Assert.AreEqual(item1.Location, dispatched[1].Item2.Location, "wrong item location for second failure item");
var dispatchTiming2 = dispatched[2].Item1 - dispatched[1].Item1;
Assert.IsTrue(dispatchTiming2 >= 1.Seconds(), "expected re-try in more than 1 second, was " + dispatchTiming2);
Assert.AreEqual(item1.Location, dispatched[2].Item2.Location, "wrong item location for first success item");
var dispatchTiming3 = dispatched[3].Item1 - dispatched[2].Item1;
Assert.IsTrue(dispatchTiming3 < 1.Seconds(), "expected successful dispatch in less than 1 second, was " + dispatchTiming3);
Assert.AreEqual(item2.Location, dispatched[3].Item2.Location, "wrong item location for second success item");
}
public void Dispose_is_idempotent()
{
// Arrange
var queuePath = Path.Combine(Path.GetTempPath(), Guid.NewGuid().ToString());
var dispatchQueue = new PersistentPubSubDispatchQueue(queuePath, TaskTimerFactory.Current, 1.Minutes(), i => new Result<bool>().WithReturn(true));
// Act
dispatchQueue.Dispose();
// Assert
dispatchQueue.Dispose();
}
public void Creating_a_queue_with_persisted_items_starts_dispatch_immediately()
{
// Arrange
var queuePath = Path.Combine(Path.GetTempPath(), Guid.NewGuid().ToString());
var item1 = new DispatchItem(new XUri("http://a"), new DispatcherEvent(new XDoc("msg"), new XUri("http://channl"), new XUri("http://resource")), "a");
var dispatchQueue = new PersistentPubSubDispatchQueue(queuePath, TaskTimerFactory.Current, 1.Seconds(), (item) => new Result<bool>().WithReturn(false));
dispatchQueue.Enqueue(item1);
dispatchQueue.Dispose();
var dispatched = new List<DispatchItem>();
Func<DispatchItem, Result<bool>> handler = (i) => {
dispatched.Add(i);
var result = new Result<bool>();
result.Return(true);
return result;
};
// Act
dispatchQueue = new PersistentPubSubDispatchQueue(queuePath, TaskTimerFactory.Current, 1.Seconds(), handler);
// Assert
Assert.IsTrue(Wait.For(() => dispatched.Count == 1, 5.Seconds()), "item was not dispatched in time");
Assert.AreEqual(item1.Location, dispatched[0].Location, "wrong item location for dispatched item");
}
public void ClearAndDispose_removes_queue_from_disk()
{
// Arrange
var queuePath = Path.Combine(Path.GetTempPath(), Guid.NewGuid().ToString());
var item1 = new DispatchItem(new XUri("http://a"), new DispatcherEvent(new XDoc("msg"), new XUri("http://channl"), new XUri("http://resource")), "a");
var dispatchQueue = new PersistentPubSubDispatchQueue(queuePath, TaskTimerFactory.Current, 1.Minutes(), (item) => new Result<bool>().WithReturn(false));
dispatchQueue.Enqueue(item1);
Assert.IsTrue(Directory.GetFiles(queuePath).Length > 0, "queue directory did not contain any files");
// Act
dispatchQueue.DeleteAndDispose();
// Assert
Assert.IsFalse(Directory.Exists(queuePath), "queue directory still exists");
}