"""Address object

    Verify if the class implements the interfaces:

        >>> from zope.interface.verify import verifyClass
        >>> verifyClass(ISenderEmail, SenderEmail)
        True

    Create a testing database:

        >>> import transaction
        >>> from voipeople.zsqlobject import create_testingdb
        >>> zstorm, store = create_testingdb('voipeople')

        >>> from voipeople.content import Account, Address, Department, FaxLine, List
        >>> account = Account(legal_name=u'Kynetix S.r.l.', vat_rate = 20, billing_type_id =1)
        >>> dummy = store.add(account)
        >>> transaction.get().commit()
        >>> address = Address(line1=u'DUMMY', city=u'DUMMY', state=u'DUMMY',
        ...     zip_code=u'00000', country=u'DUMMY', account=account)
        >>> dummy = store.add(address)
        >>> transaction.get().commit()
        >>> list = List(description=u'Voipeople Gold')
        >>> dummy = store.add(list)
        >>> transaction.get().commit()
        >>> department = Department(description=u'DUMMY',
        ...     account=account, address=address)
        >>> dummy = store.add(department)
        >>> transaction.get().commit()
        >>> faxline = FaxLine(username=u'marco', password=u'granata',
        ...      fax_number_id=2,department=department,
        ...      salelist=list, account=account,delivery_email=u'mr@voipeople.it')
        >>> dummy = store.add(faxline)
        >>> email = SenderEmail(email=u'marco@voipeople.it', faxline=faxline )
        >>> dummy = store.add(email)
        >>> transaction.get().commit()
        >>> from zope.interface.verify import verifyObject
        >>> verifyObject(ISenderEmail, email)
        True
        >>> faxline.senderemails.find().one() is email
        True