tests/calcs/hazard/disagg/core_test:
tests/calcs/hazard/disagg/core_test:

Added pre-execute and calculation workflow tests for the disagg calc
to increase code coverage.


Former-commit-id: e2907851f468aaa304b08852b47875e4f5fcddb8
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine