public void ShouldReadTwoMessages()
{
const int msgLength = 16;
var recordLength = RingBufferDescriptor.HeaderLength + msgLength;
var alignedRecordLength = recordLength.AlignToMultipleOf(RingBufferDescriptor.RecordAlignment);
long tail = alignedRecordLength * 2;
const long head = 0L;
const int headIndex = (int)head;
_atomicLong.Read(Head).Returns(head);
var makeHeader = RingBufferDescriptor.MakeHeader(recordLength, MessageTypeId);
_atomicLong.VolatileRead(new IntPtr(headIndex)).Returns(makeHeader);
_atomicLong.VolatileRead(new IntPtr(headIndex + alignedRecordLength)).Returns(makeHeader);
var counter = 0;
MessageHandler h = (id, chunk) => counter++;
var messagesRead = _ringBuffer.Read(h, 3);
Assert.AreEqual(2, messagesRead);
Assert.AreEqual(2, counter);
Received.InOrder(() =>
{
_buffer.Received(1).ZeroMemory(headIndex, alignedRecordLength * 2);
_atomicLong.VolatileWrite(Head, tail);
});
}
