Bug 17828: Unit tests for Koha::Patron::Attribute->store
Unit tests for an overloaded Koha::Patron::Attribute->store that
checks attribute type's uniqueness property and raises an exception
conveniently.
It also tests for repeatable attribute type's property.
Test plan on the implementing patch.
Signed-off-by: Josef Moravec <josef.moravec@gmail.com> Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org> Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>