Fixes tests.py module to match the new behavior with locked context
Fixes tests.py module to match the new behavior with locked context

The tests contained an assertRaises(Exception, ...) when creating a
thresholdless account with a locked context. In this version, this
doesn't happen as we are able to provide an "unsecure" hash until we are
unlocked.

PolyPasswordHasher/PolyPasswordHasher-Django