* Deregister agent job when the server terminates it
JobTerminate ended the job on the worker but left its JobTerminate
handler and jobToWorker entry registered. Those were only cleaned up
when the worker later sent an ended job status, or on worker disconnect
for jobs still running. Workers that do not report job status after a
termination (agents-js never sends UpdateJobStatus) leaked a psrpc
handler for every job terminated by the server, e.g. each time an agent
participant left its room.
* Wait for worker registration in JobTerminate test
The worker's registration response is sent before its job request topic
is registered, so wait for the WorkerRegistered event before requesting
jobs. Also cover a worker reporting an ended status after the server
terminated the job, and clarify the JobTerminate comment.
Martin Njalale
dc138b2bf0