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

Made `ClassicalHazardFormTestCase` tests more DRY.


Former-commit-id: 19e7dec2b7511e53451c06a262ce7411a0c06e88 [formerly 25e40e359ab927c23e4531f38b9435185a4d714c]
Former-commit-id: b47f99c4139eab207e8c3117fd7bc980a50e0f33
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine