def test_emailIsValid_emptyString_returnFalse(self):
     self.assertFalse(Validator.email_is_valid(""))
 def test_emailIsValid_digits_returnFalse(self):
     self.assertFalse(Validator.email_is_valid("435453"))
 def test_emailIsValid_invalidString_returnFalse(self):
     self.assertFalse(Validator.email_is_valid("*****@*****.**"), Validator.email_is_valid("*****@*****.**"))
 def test_emailIsValid_insufficientString_returnFalse(self):
     self.assertFalse(Validator.email_is_valid("@sefa.con"))
 def test_emailIsValid_validString_returnTrue(self):
     self.assertTrue(Validator.email_is_valid("*****@*****.**"), Validator.email_is_valid("*****@*****.**"))