Ugh, did the author expect Go to make his code magically real-time? That's pretty difficult, GC or not.
Also, time.Sleep in a test wouldn't pass code review. A better approach is to timestamp incoming lines and merge them based on that alone. That is testable, although the overall concept is still a bit unsound.
Also, time.Sleep in a test wouldn't pass code review. A better approach is to timestamp incoming lines and merge them based on that alone. That is testable, although the overall concept is still a bit unsound.