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from datetime import datetime
from typing import Optional

import pytest
from sqlalchemy.engine.url import make_url

from tests.unit_tests.db_engine_specs.utils import assert_convert_dttm
from tests.unit_tests.fixtures.common import dttm


@pytest.mark.parametrize(
    "target_type,expected_result",
    [
        ("Date", "CAST('2019-01-02' AS DATE)"),
        (
            "TimeStamp",
            "CAST('2019-01-02 03:04:05.678900' AS TIMESTAMP)",
        ),
        ("UnknownType", None),
    ],
)
def test_convert_dttm(
    target_type: str, expected_result: Optional[str], dttm: datetime
) -> None:
    from superset.db_engine_specs.hive import HiveEngineSpec as spec

    assert_convert_dttm(spec, target_type, expected_result, dttm)


def test_get_schema_from_engine_params() -> None:
    """
    Test the ``get_schema_from_engine_params`` method.
    """
    from superset.db_engine_specs.hive import HiveEngineSpec

    assert (
        HiveEngineSpec.get_schema_from_engine_params(
            make_url("hive://localhost:10000/default"), {}
        )
        == "default"
    )