tests/unit_tests/db_engine_specs/test_teradata.py

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# pylint: disable=unused-argument, import-outside-toplevel, protected-access
import pytest


@pytest.mark.parametrize(
    "limit,original,expected",
    [
        (100, "SEL TOP 1000 * FROM My_table", "SEL TOP 100 * FROM My_table"),
        (100, "SEL TOP 1000 * FROM My_table;", "SEL TOP 100 * FROM My_table"),
        (10000, "SEL TOP 1000 * FROM My_table;", "SEL TOP 1000 * FROM My_table"),
        (1000, "SEL TOP 1000 * FROM My_table;", "SEL TOP 1000 * FROM My_table"),
        (100, "SELECT TOP 1000 * FROM My_table", "SELECT TOP 100 * FROM My_table"),
        (100, "SEL SAMPLE 1000 * FROM My_table", "SEL SAMPLE 100 * FROM My_table"),
        (10000, "SEL SAMPLE 1000 * FROM My_table", "SEL SAMPLE 1000 * FROM My_table"),
    ],
)
def test_apply_top_to_sql_limit(
    limit: int,
    original: str,
    expected: str,
) -> None:
    """
    Ensure limits are applied to the query correctly
    """
    from superset.db_engine_specs.teradata import TeradataEngineSpec

    assert TeradataEngineSpec.apply_top_to_sql(original, limit) == expected