public void GivenCompletedUserMessage_ShouldContinueProcessing()
{
var mailboxHandler = new TestMailboxHandler();
var userMailbox = new UnboundedMailboxQueue();
var systemMessages = new UnboundedMailboxQueue();
var mailbox = new DefaultMailbox(systemMessages, userMailbox);
mailbox.RegisterHandlers(mailboxHandler, mailboxHandler);
var msg1 = new TestMessage();
var msg2 = new TestMessage();
msg1.TaskCompletionSource.SetResult(0);
msg2.TaskCompletionSource.SetResult(0);
mailbox.PostUserMessage(msg1);
mailbox.PostUserMessage(msg2);
Assert.False(userMailbox.HasMessages, "Mailbox should have processed both messages because they were already completed.");
}
public async Task GivenNonCompletedUserMessage_ShouldSetMailboxToIdleAfterCompletion()
{
var mailboxHandler = new TestMailboxHandler();
var userMailbox = new UnboundedMailboxQueue();
var systemMessages = new UnboundedMailboxQueue();
var mailbox = new DefaultMailbox(systemMessages, userMailbox);
mailbox.RegisterHandlers(mailboxHandler, mailboxHandler);
var msg1 = new TestMessage();
mailbox.PostUserMessage(msg1);
Action resumeMailboxTrigger = () => msg1.TaskCompletionSource.SetResult(0);
await mailboxHandler.ResumeMailboxProcessingAndWaitAsync(resumeMailboxTrigger)
.ConfigureAwait(false);
Assert.True(mailbox.Status == MailboxStatus.Idle, "Mailbox should be set back to Idle after completion of message.");
}
public void GivenNonCompletedSystemMessage_ShouldHaltProcessingUntilCompletion()
{
var mailboxHandler = new TestMailboxHandler();
var userMailbox = new UnboundedMailboxQueue();
var systemMessages = new UnboundedMailboxQueue();
var mailbox = new DefaultMailbox(systemMessages, userMailbox);
mailbox.RegisterHandlers(mailboxHandler, mailboxHandler);
var msg1 = new TestMessage();
var msg2 = new TestMessage();
mailbox.PostSystemMessage(msg1);
mailbox.PostSystemMessage(msg2);
Assert.True(systemMessages.HasMessages, "Mailbox should not have processed msg2 because processing of msg1 is not completed.");
msg1.TaskCompletionSource.SetResult(0);
msg2.TaskCompletionSource.Task.Wait(1000);
Assert.False(systemMessages.HasMessages, "Mailbox should have processed msg2 because processing of msg1 is completed.");
}