add better error message when shared context is missing
Created by: slawosz
Now, when we try to include not exist shared context we got misleading error: ArgumentError Exception: block not supplied, my commit provides more friendly message.
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
Created by: slawosz
Now, when we try to include not exist shared context we got misleading error: ArgumentError Exception: block not supplied, my commit provides more friendly message.