def test_with_valid_username_returns_none(self, create_users):
# Arrange
sql_storage = StorageImplementation()
username = "******"
# Act
sql_storage.validate_username(username=username)
def test_with_invalid_username_raises_exception(self, create_users):
# Arrange
from gyaan_auth.exceptions import InvalidUsername
sql_storage = StorageImplementation()
username = "******"
# Act
with pytest.raises(InvalidUsername):
sql_storage.validate_username(username=username)