Refactor so we can unit test inject_parameters

Signed-off-by: Jesse Whitehouse <[email protected]>

Author: Jesse Whitehouse

src/databricks/sql/client.py

@@ -12,7 +12,7 @@
 from databricks.sql import *
 from databricks.sql.exc import OperationalError
 from databricks.sql.thrift_backend import ThriftBackend
-from databricks.sql.utils import ExecuteResponse, ParamEscaper
+from databricks.sql.utils import ExecuteResponse, ParamEscaper, inject_parameters
 from databricks.sql.types import Row
 
 logger = logging.getLogger(__name__)
@@ -260,7 +260,9 @@ def execute(
         :returns self
         """
         if parameters is not None:
-            operation = operation % self.escaper.escape_args(parameters)
+            operation = inject_parameters(
+                operation, self.escaper.escape_args(parameters)
+            )
 
         self._check_not_closed()
         self._close_and_clear_active_result_set()

src/databricks/sql/utils.py

@@ -2,7 +2,7 @@
 from collections.abc import Iterable
 import datetime
 from enum import Enum
-
+from typing import Dict
 import pyarrow
 
 
@@ -172,3 +172,7 @@ def escape_item(self, item):
             return self.escape_datetime(item, self._DATE_FORMAT)
         else:
             raise exc.ProgrammingError("Unsupported object {}".format(item))
+
+
+def inject_parameters(operation: str, parameters: Dict[str, str]):
+    return operation % parameters