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

Made `ClassicalHazardFormTestCase` tests more DRY.


Former-commit-id: 25e40e359ab927c23e4531f38b9435185a4d714c
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine