(HTCONDOR-815)  Implement the third (self-checkpointing) test from the ticket.
(HTCONDOR-815)  Implement the third (self-checkpointing) test from the ticket.

htcondor/htcondor,htcondor/htcondor,htcondor/htcondor,htcondor/htcondor,htcondor/htcondor,htcondor/htcondor,htcondor/htcondor,htcondor/htcondor