How do you test code that uses AnyEvent?

Testing code that utilizes AnyEvent involves ensuring that your asynchronous operations are functioning correctly. AnyEvent is a powerful event loop framework in Perl that allows for non-blocking I/O. Below is a simple example to demonstrate how you might write tests for AnyEvent-based code.


        use AnyEvent;
        
        my $cv = AnyEvent->condvar;

        my $timer = AnyEvent->timer( after => 1, interval => 0, 
            cb => sub {
                print "Timer expired.\n";
                $cv->send; # signal completion
            });

        print "Waiting for timer...\n";
        $cv->recv; # wait for timer to finish