use pyodbc instead

mssql/testcontainers/mssql/__init__.py

@@ -15,15 +15,18 @@ class SqlServerContainer(DbContainer):
             >>> import sqlalchemy
             >>> from testcontainers.mssql import SqlServerContainer
 
-            >>> with SqlServerContainer() as mssql:
-            ...    engine = sqlalchemy.create_engine(mssql.get_connection_url())
-            ...    with engine.begin() as connection:
-            ...        result = connection.execute(sqlalchemy.text("select @@VERSION"))
+        >>> with SqlServerContainer() as mssql:
+        ...    engine = sqlalchemy.create_engine(mssql.get_connection_url())
+        ...    result = engine.execute(sqlalchemy.text("select @@VERSION"))
+    Notes
+    -----
+    Requires `ODBC Driver 17 for SQL Server <https://docs.microsoft.com/en-us/sql/connect/odbc/
+    linux-mac/installing-the-microsoft-odbc-driver-for-sql-server>`_.
     """
 
     def __init__(self, image: str = "mcr.microsoft.com/mssql/server:2019-latest",
                  username: str = "SA", password: Optional[str] = None, port: int = 1433,
-                 dbname: str = "tempdb", dialect: str = 'mssql+pymssql', **kwargs) -> None:
+                 dbname: str = "tempdb", dialect: str = 'mssql+pymssql', driver: str = "ODBC Driver 17 for SQL Server", **kwargs) -> None:
         raise_for_deprecated_parameter(kwargs, "user", "username")
         super(SqlServerContainer, self).__init__(image, **kwargs)
 
@@ -34,6 +37,7 @@ def __init__(self, image: str = "mcr.microsoft.com/mssql/server:2019-latest",
         self.username = username
         self.dbname = dbname
         self.dialect = dialect
+        self.driver = driver
 
     def _configure(self) -> None:
         self.with_env("SA_PASSWORD", self.password)
@@ -42,7 +46,10 @@ def _configure(self) -> None:
         self.with_env("ACCEPT_EULA", 'Y')
 
     def get_connection_url(self) -> str:
-        return super()._create_connection_url(
+        base_url = super(SqlServerContainer, self)._create_connection_url(
             dialect=self.dialect, username=self.username, password=self.password,
-            dbname=self.dbname, port=self.port
+            db_name=self.dbname, port=self.port
         )
+        url = base_url + f"?driver={'+'.join(self.driver.split(' '))}"
+        return url
+