tests/job/validation_test:
tests/job/validation_test:

Made `DisaggHazardFormTestCase` test cases more DRY.


Former-commit-id: 567c3d2e9990fca9fd8eb79ea97645a560ad5387 [formerly ed62f6843f150aa7f9b6d7d7dafdfc5ca96e9483]
Former-commit-id: 5acdf9104db0b067ce01ad963c8afe00066e9bd3
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine