public void TestReceiverUnregister()
{
// Create sender and receiver
SenderViewModel sender = new SenderViewModel();
ReceiverViewModel receiver = new ReceiverViewModel();
// Register receiver to get messages
receiver.Subscribe();
// Set message content
sender.SentData = new Random().Next(100);
// Send message
sender.SendOneWayMessage();
// Assert message was received
Assert.AreEqual <int>(sender.SentData, receiver.ReceivedData);
// Unregister receiver
receiver.Unsubscribe();
// Send another message
sender.SentData += 100;
sender.SendOneWayMessage();
// Assert message was NOT received
Assert.AreNotEqual <int>(sender.SentData, receiver.ReceivedData);
}
public void TestReceiverCleanup()
{
// Create sender and receiver
SenderViewModel sender = new SenderViewModel();
ReceiverViewModel receiver = new ReceiverViewModel();
// Register receiver to get messages
receiver.Subscribe();
// Set message content
sender.SentMessage = "hello";
// Send message
sender.SendSimpleMessage();
// Assert message was received
Assert.AreEqual <string>(sender.SentMessage, receiver.ReceivedMessage);
// Try to GC reciever
WeakReference weakReceiver = new WeakReference(receiver);
receiver = null;
GC.Collect();
Thread.Sleep(1000);
// Assert the receiver was allowed to be GC'd
Assert.IsFalse(weakReceiver.IsAlive, "Receiver has not been GC'd");
// Send another message
sender.SentMessage = "hello again";
sender.SendSimpleMessage();
// Assert the receiver is still not alive
Assert.IsFalse(weakReceiver.IsAlive, "Receiver has not been GC'd after sending message");
}
public void TestTwoWayMessage()
{
// Create sender and receiver
SenderViewModel sender = new SenderViewModel();
ReceiverViewModel receiver = new ReceiverViewModel();
// Register receiver to get messages
receiver.Subscribe();
// Capture orig values
string origReceiverMessage = receiver.ReceivedMessage;
int origReceiverData = receiver.ReceivedData;
// Set message content
sender.SentData = new Random().Next(100);
receiver.SentData = true;
// Send message
sender.SendTwoWayMessage();
// Assert data was received
Assert.AreEqual <int>(sender.SentData, receiver.ReceivedData);
// Assert data was sent
Assert.AreEqual <bool>(receiver.SentData, sender.ReceivedData);
// Assert receiver and sender data have not changed
Assert.AreEqual <string>(origReceiverMessage, receiver.ReceivedMessage);
}
public void TestRepeatSend()
{
// Create sender and receiver
SenderViewModel sender = new SenderViewModel();
ReceiverViewModel receiver = new ReceiverViewModel();
// Register receiver to get messages
receiver.Subscribe();
// Set init value
int val = new Random().Next(100);
// Iterate 3 times
for (int i = 0; i < 3; i++)
{
// Set message content
sender.SentData = val;
// Send message
sender.SendOneWayMessage();
// Assert message was received
Assert.AreEqual <int>(sender.SentData, receiver.ReceivedData);
// Increment value
val += 100;
}
}
public void TestSimpleMessage()
{
// Create sender and receiver
SenderViewModel sender = new SenderViewModel();
ReceiverViewModel receiver = new ReceiverViewModel();
// Register receiver to get messages
receiver.Subscribe();
// Set message content
sender.SentMessage = "hello";
// Capture orig values
int origReceiverData = receiver.ReceivedData;
bool origSenderData = sender.ReceivedData;
// Send message
sender.SendSimpleMessage();
// Assert message was received
Assert.AreEqual <string>(sender.SentMessage, receiver.ReceivedMessage);
// Assert receiver and sender data have not changed
Assert.AreEqual <int>(origReceiverData, receiver.ReceivedData);
Assert.AreEqual <bool>(origSenderData, sender.ReceivedData);
}
