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import sys
import unittest.mock as mock

from pandas import DataFrame
from sqlalchemy import column

from superset.db_engine_specs.base import BaseEngineSpec
from superset.db_engine_specs.bigquery import BigQueryEngineSpec
from superset.errors import ErrorLevel, SupersetError, SupersetErrorType
from superset.sql_parse import Table
from tests.integration_tests.db_engine_specs.base_tests import TestDbEngineSpec


class TestBigQueryDbEngineSpec(TestDbEngineSpec):
    def test_bigquery_sqla_column_label(self):
        """
        DB Eng Specs (bigquery): Test column label
        """
        test_cases = {
            "Col": "Col",
            "SUM(x)": "SUM_x__5f110",
            "SUM[x]": "SUM_x__7ebe1",
            "12345_col": "_12345_col_8d390",
        }
        for original, expected in test_cases.items():
            actual = BigQueryEngineSpec.make_label_compatible(column(original).name)
            self.assertEqual(actual, expected)

    def test_convert_dttm(self):
        """
        DB Eng Specs (bigquery): Test conversion to date time