feat: add YDB as a new database engine (#31141)

tests/unit_tests/db_engine_specs/test_ydb.py

@@ -0,0 +1,83 @@
+# 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 __future__ import annotations
+
+from datetime import datetime
+from typing import Any, Optional
+from unittest.mock import Mock
+
+import pytest
+
+from superset.utils import json
+from tests.unit_tests.db_engine_specs.utils import assert_convert_dttm
+from tests.unit_tests.fixtures.common import dttm  # noqa: F401
+
+
+def test_epoch_to_dttm() -> None:
+    from superset.db_engine_specs.ydb import YDBEngineSpec
+
+    assert YDBEngineSpec.epoch_to_dttm() == "DateTime::MakeDatetime({col})"
+
+
+@pytest.mark.parametrize(
+    "target_type,expected_result",
+    [
+        ("Date", "DateTime::MakeDate(DateTime::ParseIso8601('2019-01-02'))"),
+        (
+            "DateTime",
+            "DateTime::MakeDatetime(DateTime::ParseIso8601('2019-01-02T03:04:05'))",
+        ),
+        ("UnknownType", None),
+    ],
+)
+def test_convert_dttm(
+    target_type: str,
+    expected_result: Optional[str],
+    dttm: datetime,  # noqa: F811
+) -> None:
+    from superset.db_engine_specs.ydb import YDBEngineSpec as spec
+
+    assert_convert_dttm(spec, target_type, expected_result, dttm)
+
+
+def test_specify_protocol() -> None:
+    from superset.db_engine_specs.ydb import YDBEngineSpec
+
+    database = Mock()
+
+    extra = {"protocol": "grpcs"}
+    database.encrypted_extra = json.dumps(extra)
+
+    params: dict[str, Any] = {}
+    YDBEngineSpec.update_params_from_encrypted_extra(database, params)
+    connect_args = params.setdefault("connect_args", {})
+    assert connect_args.get("protocol") == "grpcs"
+
+
+def test_specify_credentials() -> None:
+    from superset.db_engine_specs.ydb import YDBEngineSpec
+
+    database = Mock()
+
+    auth_params = {"username": "username", "password": "password"}
+    database.encrypted_extra = json.dumps({"credentials": auth_params})
+
+    params: dict[str, Any] = {}
+    YDBEngineSpec.update_params_from_encrypted_extra(database, params)
+    connect_args = params.setdefault("connect_args", {})
+    assert connect_args.get("credentials") == auth_params