feat: Drill ODBC/JDBC Impersonation feature (#17353)

* Added Drill ODBC Impersonation feature and necessary translations/docs

* Code Cleanup

* add jdbc impersonation_target parameter

* add unittests for DrillEngineSpec.modify_url_for_impersonation method

* reformat test_drill.py with black formatter

* run pre-commit locally

Co-authored-by: Christian Pfarr <Christian.Pfarr@deutschebahn.com>
Co-authored-by: Christian Pfarr <z0ltrix+gitlab@pm.me>
(cherry picked from commit 333b1371f7)

tests/unit_tests/db_engine_specs/test_drill.py

@@ -0,0 +1,67 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+# pylint: disable=unused-argument, import-outside-toplevel, protected-access
+
+from flask.ctx import AppContext
+
+
+def test_odbc_impersonation(app_context: AppContext) -> None:
+    """
+    Test ``modify_url_for_impersonation`` method when driver == odbc.
+
+    The method adds the parameter ``DelegationUID`` to the query string.
+    """
+    from sqlalchemy.engine.url import URL
+
+    from superset.db_engine_specs.drill import DrillEngineSpec
+
+    url = URL("drill+odbc")
+    username = "DoAsUser"
+    DrillEngineSpec.modify_url_for_impersonation(url, True, username)
+    assert url.query["DelegationUID"] == username
+
+
+def test_jdbc_impersonation(app_context: AppContext) -> None:
+    """
+    Test ``modify_url_for_impersonation`` method when driver == jdbc.
+
+    The method adds the parameter ``impersonation_target`` to the query string.
+    """
+    from sqlalchemy.engine.url import URL
+
+    from superset.db_engine_specs.drill import DrillEngineSpec
+
+    url = URL("drill+jdbc")
+    username = "DoAsUser"
+    DrillEngineSpec.modify_url_for_impersonation(url, True, username)
+    assert url.query["impersonation_target"] == username
+
+
+def test_sadrill_impersonation(app_context: AppContext) -> None:
+    """
+    Test ``modify_url_for_impersonation`` method when driver == sadrill.
+
+    The method changes the username of URL Object.
+    """
+    from sqlalchemy.engine.url import URL
+
+    from superset.db_engine_specs.drill import DrillEngineSpec
+
+    url = URL("drill+sadrill")
+    username = "DoAsUser"
+    DrillEngineSpec.modify_url_for_impersonation(url, True, username)
+    assert url.username == username