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from tests.dialects.test_dialect import Validator


class TestTSQL(Validator):
    dialect = "tsql"

    def test_tsql(self):
        self.validate_identity('SELECT "x"."y" FROM foo')

        self.validate_all(
            "SELECT CAST([a].[b] AS SMALLINT) FROM foo",
            write={
                "tsql": 'SELECT CAST("a"."b" AS SMALLINT) FROM foo',
                "spark": "SELECT CAST(`a`.`b` AS SHORT) FROM foo",
            },
        )

    def test_types(self):
        self.validate_identity("CAST(x AS XML)")
        self.validate_identity("CAST(x AS UNIQUEIDENTIFIER)")
        self.validate_identity("CAST(x AS MONEY)")
        self.validate_identity("CAST(x AS SMALLMONEY)")
        self.validate_identity("CAST(x AS ROWVERSION)")
        self.validate_identity("CAST(x AS IMAGE)")
        self.validate_identity("CAST(x AS SQL_VARIANT)")
        self.validate_identity("CAST(x AS BIT)")