Added a test for post_execute (coverage was missing)
Added a test for post_execute (coverage was missing)


Former-commit-id: 8a1e70599467102846598bd9fb33a0593fb2502c [formerly 8a1e70599467102846598bd9fb33a0593fb2502c [formerly ff71dcdc5ac8c543912217438e93207fd2d642fe]]
Former-commit-id: a5454e0ba64f6dc4c903f063b5c45dd1a5fefc29
Former-commit-id: dd67e58eb6fe9fb6ca510fb524989891613086bd
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine