def test_seller(self):
postal_address = PostalAddress(street_address="123 Carrot down road",
locality="Warszawa",
region="Mazowieckie",
postal_code="01-222",
country="Poland")
nip = "111"
#nip = "111"
seller = Seller(company_name="AtomicSolutions",
postal_address=postal_address,
NIP=nip,
account_number="4435 4444 1111 0000 9999",
bank_name="Macros")
print(seller)
