def test_string(self):

        string = 'dsadsa sdsadas sd as'

        db_value = String(string).as_sql() % String(string).get_params()[0]
        self.assertEqual(Float.to_python(db_value), string)
    def test_float(self):

        f = 3.2

        db_value = float(Float(f).as_sql())
        self.assertEqual(Float.to_python(db_value), f)