add unit test for ms sql mixin

from webbrowser import get

from common.database import Database

from common.mixins.postgres import PostgresMixin

from common.mixins.mssql import MSSQLMixin

from common.mixins.postgres_logger import PostgresLoggerMixin

from common.logz import create_logger

class DBPG(Database, PostgresMixin):

    """Create the Database and PostgresMixin class."""

class DBMSAzure(Database, MSSQLMixin):

    """Create the Database and MSSQLMixin class."""

class PostgresTestCase(unittest.TestCase):

    """Test the Postgres connection case."""

        with DBPG() as data_base:

            print(data_base.query("SELECT * FROM test_table"))

class MSSQLTestCase(unittest.TestCase):

    """Test the Postgres connection case."""

    def test_open(self):

        """

        test_open:

            Test that the DB can successfully be opened

        """

        with DBMSAzure() as db:

            print(db.query("SELECT * FROM test_table"))

class DBConnTestCase(unittest.TestCase):

    def test_connection(self):