def test_donation_date_with_hyphens(self): self.assertFalse(Donor.is_valid_donation_date('2030-02-06'))
def test_donation_date_with_wrong_date(self): self.assertFalse(Donor.is_valid_donation_date('2030.30.30'))
def test_donation_date_with_empty_string(self): self.assertTrue(Donor.is_valid_donation_date(''))
def test_donation_date_with_letters(self): self.assertFalse(Donor.is_valid_donation_date('bbbb.bb.bb'))
def test_donation_date_with_valid_string(self): self.assertTrue(Donor.is_valid_donation_date('2000.01.01'))