public void skipped_messages_are_not_removed()
{
var buffer = new StreamBuffer(10, 10, -1, true);
var id1 = Guid.NewGuid();
buffer.AddReadMessage(BuildMessageAt(id1, 0));
var id2 = Guid.NewGuid();
buffer.AddReadMessage(BuildMessageAt(id2, 1));
var id3 = Guid.NewGuid();
buffer.AddReadMessage(BuildMessageAt(id3, 2));
Assert.AreEqual(3, buffer.BufferCount);
var messagePointer2 = buffer.Scan().Skip(1).First(); // Skip the first message.
Assert.AreEqual(id2, messagePointer2.Message.EventId);
messagePointer2.MarkSent();
Assert.AreEqual(2, buffer.BufferCount);
var messagePointers = buffer.Scan().ToArray();
Assert.AreEqual(id1, messagePointers[0].Message.EventId);
Assert.AreEqual(id3, messagePointers[1].Message.EventId);
}
public void adding_multiple_same_read_message()
{
var buffer = new StreamBuffer(10, 10, -1, true);
var id1 = Guid.NewGuid();
buffer.AddReadMessage(BuildMessageAt(id1, 0));
buffer.AddReadMessage(BuildMessageAt(id1, 0));
Assert.AreEqual(2, buffer.BufferCount);
OutstandingMessage message;
Assert.IsTrue(buffer.TryDequeue(out message));
Assert.AreEqual(id1, message.EventId);
Assert.IsTrue(buffer.TryDequeue(out message));
Assert.AreEqual(id1, message.EventId);
Assert.IsFalse(buffer.Live);
}
public void retried_messages_appear_in_version_order()
{
var buffer = new StreamBuffer(10, 10, -1, true);
var id1 = Guid.NewGuid();
buffer.AddReadMessage(BuildMessageAt(id1, 0));
var id2 = Guid.NewGuid();
var id3 = Guid.NewGuid();
var id4 = Guid.NewGuid();
var id5 = Guid.NewGuid();
buffer.AddRetry(BuildMessageAt(id2, 2));
buffer.AddRetry(BuildMessageAt(id3, 3));
buffer.AddRetry(BuildMessageAt(id4, 1));
buffer.AddRetry(BuildMessageAt(id5, 2));
var messagePointer = buffer.Scan().First();
Assert.AreEqual(id4, messagePointer.Message.EventId);
messagePointer.MarkSent();
messagePointer = buffer.Scan().First();
Assert.AreEqual(id2, messagePointer.Message.EventId);
messagePointer.MarkSent();
messagePointer = buffer.Scan().First();
Assert.AreEqual(id5, messagePointer.Message.EventId);
messagePointer.MarkSent();
messagePointer = buffer.Scan().First();
Assert.AreEqual(id3, messagePointer.Message.EventId);
messagePointer.MarkSent();
}
public void retried_messages_appear_first()
{
var buffer = new StreamBuffer(10, 10, -1, true);
var id1 = Guid.NewGuid();
buffer.AddReadMessage(BuildMessageAt(id1, 0));
var id2 = Guid.NewGuid();
buffer.AddRetry(BuildMessageAt(id2, 2));
Assert.AreEqual(2, buffer.BufferCount);
Assert.AreEqual(1, buffer.RetryBufferCount);
Assert.AreEqual(1, buffer.ReadBufferCount);
var messagePointer = buffer.Scan().First();
Assert.AreEqual(id2, messagePointer.Message.EventId);
messagePointer.MarkSent();
Assert.AreEqual(1, buffer.BufferCount);
Assert.AreEqual(0, buffer.RetryBufferCount);
Assert.AreEqual(1, buffer.ReadBufferCount);
messagePointer = buffer.Scan().First();
Assert.AreEqual(id1, messagePointer.Message.EventId);
messagePointer.MarkSent();
Assert.AreEqual(0, buffer.BufferCount);
Assert.AreEqual(0, buffer.RetryBufferCount);
Assert.AreEqual(0, buffer.ReadBufferCount);
Assert.IsFalse(buffer.Live);
}
public void retried_messages_appear_in_version_order()
{
var buffer = new StreamBuffer(10, 10, null, true);
var id2Retry1 = Guid.NewGuid();
var id2Retry2 = Guid.NewGuid();
buffer.AddReadMessage(BuildMessageAt(0));
buffer.AddRetry(BuildMessageAt(2, id2Retry1));
buffer.AddRetry(BuildMessageAt(3));
buffer.AddRetry(BuildMessageAt(1));
buffer.AddRetry(BuildMessageAt(2, id2Retry2));
var messagePointer = buffer.Scan().First();
Assert.AreEqual(GetEventIdFor(1), messagePointer.Message.EventId);
messagePointer.MarkSent();
messagePointer = buffer.Scan().First();
Assert.AreEqual(id2Retry1, messagePointer.Message.EventId);
messagePointer.MarkSent();
messagePointer = buffer.Scan().First();
Assert.AreEqual(id2Retry2, messagePointer.Message.EventId);
messagePointer.MarkSent();
messagePointer = buffer.Scan().First();
Assert.AreEqual(GetEventIdFor(3), messagePointer.Message.EventId);
messagePointer.MarkSent();
}
public void retried_messages_appear_first()
{
var buffer = new StreamBuffer(10, 10, null, true);
buffer.AddReadMessage(BuildMessageAt(0));
buffer.AddRetry(BuildMessageAt(2));
Assert.AreEqual(2, buffer.BufferCount);
Assert.AreEqual(1, buffer.RetryBufferCount);
Assert.AreEqual(1, buffer.ReadBufferCount);
var messagePointer = buffer.Scan().First();
Assert.AreEqual(GetEventIdFor(2), messagePointer.Message.EventId);
messagePointer.MarkSent();
Assert.AreEqual(1, buffer.BufferCount);
Assert.AreEqual(0, buffer.RetryBufferCount);
Assert.AreEqual(1, buffer.ReadBufferCount);
messagePointer = buffer.Scan().First();
Assert.AreEqual(GetEventIdFor(0), messagePointer.Message.EventId);
messagePointer.MarkSent();
Assert.AreEqual(0, buffer.BufferCount);
Assert.AreEqual(0, buffer.RetryBufferCount);
Assert.AreEqual(0, buffer.ReadBufferCount);
Assert.IsFalse(buffer.Live);
}
public void adding_multiple_same_read_message()
{
var buffer = new StreamBuffer(10, 10, null, true);
buffer.AddReadMessage(BuildMessageAt(0));
buffer.AddReadMessage(BuildMessageAt(0));
Assert.AreEqual(2, buffer.BufferCount);
var messagePointer = buffer.Scan().First();
Assert.AreEqual(GetEventIdFor(0), messagePointer.Message.EventId);
messagePointer.MarkSent();
Assert.AreEqual(1, buffer.BufferCount);
messagePointer = buffer.Scan().First();
Assert.AreEqual(GetEventIdFor(0), messagePointer.Message.EventId);
messagePointer.MarkSent();
Assert.AreEqual(0, buffer.BufferCount);
Assert.IsFalse(buffer.Live);
}
public void adding_multiple_read_message_in_wrong_order()
{
var buffer = new StreamBuffer(10, 10, -1, true);
var id1 = Guid.NewGuid();
var id2 = Guid.NewGuid();
buffer.AddReadMessage(BuildMessageAt(id1, 1));
buffer.AddReadMessage(BuildMessageAt(id2, 0));
Assert.AreEqual(2, buffer.BufferCount);
var messagePointer = buffer.Scan().First();
Assert.AreEqual(id1, messagePointer.Message.EventId);
messagePointer.MarkSent();
Assert.AreEqual(1, buffer.BufferCount);
messagePointer = buffer.Scan().First();
Assert.AreEqual(id2, messagePointer.Message.EventId);
messagePointer.MarkSent();
Assert.AreEqual(0, buffer.BufferCount);
Assert.IsFalse(buffer.Live);
}
public void adding_read_message_in_correct_order()
{
var buffer = new StreamBuffer(10, 10, null, true);
buffer.AddReadMessage(BuildMessageAt(0));
Assert.AreEqual(1, buffer.BufferCount);
OutstandingMessage message = buffer.Scan().First().Message;
Assert.AreEqual(GetEventIdFor(0), message.EventId);
Assert.IsFalse(buffer.Live);
}
public void skipped_messages_are_not_removed()
{
var buffer = new StreamBuffer(10, 10, null, true);
buffer.AddReadMessage(BuildMessageAt(0));
buffer.AddReadMessage(BuildMessageAt(1));
buffer.AddReadMessage(BuildMessageAt(2));
Assert.AreEqual(3, buffer.BufferCount);
var messagePointer2 = buffer.Scan().Skip(1).First(); // Skip the first message.
Assert.AreEqual(GetEventIdFor(1), messagePointer2.Message.EventId);
messagePointer2.MarkSent();
Assert.AreEqual(2, buffer.BufferCount);
var messagePointers = buffer.Scan().ToArray();
Assert.AreEqual(GetEventIdFor(0), messagePointers[0].Message.EventId);
Assert.AreEqual(GetEventIdFor(2), messagePointers[1].Message.EventId);
}
public void adding_read_message_in_correct_order()
{
var buffer = new StreamBuffer(10, 10, -1, true);
var id = Guid.NewGuid();
buffer.AddReadMessage(BuildMessageAt(id, 0));
Assert.AreEqual(1, buffer.BufferCount);
OutstandingMessage message = buffer.Scan().First().Message;
Assert.AreEqual(id, message.EventId);
Assert.IsFalse(buffer.Live);
}
public void adding_messages_to_read_after_same_on_live_switches_to_live()
{
var buffer = new StreamBuffer(10, 10, -1, true);
var id1 = Guid.NewGuid();
buffer.AddLiveMessage(BuildMessageAt(id1, 0));
buffer.AddReadMessage(BuildMessageAt(id1, 0));
Assert.IsTrue(buffer.Live);
Assert.AreEqual(1, buffer.BufferCount);
OutstandingMessage message;
Assert.IsTrue(buffer.TryDequeue(out message));
Assert.AreEqual(id1, message.EventId);
}
public void adding_messages_to_read_after_same_on_live_switches_to_live()
{
var buffer = new StreamBuffer(10, 10, null, true);
buffer.AddLiveMessage(BuildMessageAt(0));
buffer.AddReadMessage(BuildMessageAt(0));
Assert.IsTrue(buffer.Live);
Assert.AreEqual(1, buffer.BufferCount);
var messagePointer = buffer.Scan().First();
Assert.AreEqual(GetEventIdFor(0), messagePointer.Message.EventId);
messagePointer.MarkSent();
Assert.AreEqual(0, buffer.BufferCount);
}
public void adding_messages_to_read_after_later_live_does_not_switch()
{
var buffer = new StreamBuffer(10, 10, -1, true);
var id1 = Guid.NewGuid();
var id2 = Guid.NewGuid();
buffer.AddLiveMessage(BuildMessageAt(id1, 5));
buffer.AddReadMessage(BuildMessageAt(id2, 0));
Assert.IsFalse(buffer.Live);
Assert.AreEqual(1, buffer.BufferCount);
var messagePointer = buffer.Scan().First();
Assert.AreEqual(id2, messagePointer.Message.EventId);
messagePointer.MarkSent();
Assert.AreEqual(0, buffer.BufferCount);
}
public void adding_messages_with_lower_in_live()
{
var buffer = new StreamBuffer(10, 10, -1, true);
var id1 = Guid.NewGuid();
var id2 = Guid.NewGuid();
buffer.AddLiveMessage(BuildMessageAt(id1, 5));
buffer.AddLiveMessage(BuildMessageAt(id1, 6));
buffer.AddLiveMessage(BuildMessageAt(id2, 7));
buffer.AddReadMessage(BuildMessageAt(id1, 7));
Assert.IsTrue(buffer.Live);
Assert.AreEqual(1, buffer.BufferCount);
OutstandingMessage message;
Assert.IsTrue(buffer.TryDequeue(out message));
Assert.AreEqual(id2, message.EventId);
}
public void adding_messages_with_lower_in_live()
{
var buffer = new StreamBuffer(10, 10, null, true);
var id = Guid.NewGuid();
buffer.AddLiveMessage(BuildMessageAt(5));
buffer.AddLiveMessage(BuildMessageAt(6));
buffer.AddLiveMessage(BuildMessageAt(7, id));
buffer.AddReadMessage(BuildMessageAt(7));
Assert.IsTrue(buffer.Live);
Assert.AreEqual(1, buffer.BufferCount);
var messagePointer = buffer.Scan().First();
Assert.AreEqual(id, messagePointer.Message.EventId);
messagePointer.MarkSent();
Assert.AreEqual(0, buffer.BufferCount);
}
