feat: use a new official CH driver: clickhouse-connect (#22039)

tests/unit_tests/db_engine_specs/test_clickhouse.py

@@ -0,0 +1,46 @@
+# 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.
+from datetime import datetime
+from unittest import mock
+
+import pytest
+
+from tests.unit_tests.fixtures.common import dttm
+
+
+def test_convert_dttm(dttm: datetime) -> None:
+    from superset.db_engine_specs.clickhouse import ClickHouseEngineSpec
+
+    assert ClickHouseEngineSpec.convert_dttm("DATE", dttm) == "toDate('2019-01-02')"
+    assert (
+        ClickHouseEngineSpec.convert_dttm("DATETIME", dttm)
+        == "toDateTime('2019-01-02 03:04:05')"
+    )
+
+
+def test_execute_connection_error() -> None:
+    from urllib3.exceptions import NewConnectionError
+
+    from superset.db_engine_specs.clickhouse import ClickHouseEngineSpec
+    from superset.db_engine_specs.exceptions import SupersetDBAPIDatabaseError
+
+    cursor = mock.Mock()
+    cursor.execute.side_effect = NewConnectionError(
+        "Dummypool", "Exception with sensitive data"
+    )
+    with pytest.raises(SupersetDBAPIDatabaseError) as ex:
+        ClickHouseEngineSpec.execute(cursor, "SELECT col1 from table1")