feat: add connector for CouchbaseDB (#29225)

Co-authored-by: ayush-couchbase <ayush.tripathi@couchbase.com>

tests/unit_tests/db_engine_specs/test_couchbase.py

@@ -0,0 +1,93 @@
+# 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 typing import Any, Optional
+
+import pytest
+from sqlalchemy import types
+
+from superset.utils.core import GenericDataType
+from tests.unit_tests.db_engine_specs.utils import (
+    assert_column_spec,
+    assert_convert_dttm,
+)
+from tests.unit_tests.fixtures.common import dttm  # noqa: F401
+
+
+def test_epoch_to_dttm() -> None:
+    """
+    DB Eng Specs (couchbase): Test epoch to dttm
+    """
+    from superset.db_engine_specs.couchbasedb import CouchbaseDbEngineSpec
+
+    assert CouchbaseDbEngineSpec.epoch_to_dttm() == "MILLIS_TO_STR({col} * 1000)"
+
+
+def test_epoch_ms_to_dttm() -> None:
+    """
+    DB Eng Specs (couchbase): Test epoch ms to dttm
+    """
+    from superset.db_engine_specs.couchbasedb import CouchbaseDbEngineSpec
+
+    assert CouchbaseDbEngineSpec.epoch_ms_to_dttm() == "MILLIS_TO_STR({col})"
+
+
+@pytest.mark.parametrize(
+    "target_type,expected_result",
+    [
+        ("Date", "DATETIME(DATE_FORMAT_STR(STR_TO_UTC('2019-01-02'), 'iso8601'))"),
+        (
+            "DateTime",
+            "DATETIME(DATE_FORMAT_STR(STR_TO_UTC('2019-01-02T03:04:05'), 'iso8601'))",
+        ),
+    ],
+)
+def test_convert_dttm(
+    target_type: str,
+    expected_result: Optional[str],
+    dttm: datetime,  # noqa: F811
+) -> None:
+    from superset.db_engine_specs.couchbasedb import CouchbaseDbEngineSpec as spec
+
+    assert_convert_dttm(spec, target_type, expected_result, dttm)
+
+
+@pytest.mark.parametrize(
+    "native_type,sqla_type,attrs,generic_type,is_dttm",
+    [
+        ("SMALLINT", types.SmallInteger, None, GenericDataType.NUMERIC, False),
+        ("INTEGER", types.Integer, None, GenericDataType.NUMERIC, False),
+        ("BIGINT", types.BigInteger, None, GenericDataType.NUMERIC, False),
+        ("DECIMAL", types.Numeric, None, GenericDataType.NUMERIC, False),
+        ("NUMERIC", types.Numeric, None, GenericDataType.NUMERIC, False),
+        ("CHAR", types.String, None, GenericDataType.STRING, False),
+        ("VARCHAR", types.String, None, GenericDataType.STRING, False),
+        ("TEXT", types.String, None, GenericDataType.STRING, False),
+        ("BOOLEAN", types.Boolean, None, GenericDataType.BOOLEAN, False),
+    ],
+)
+def test_get_column_spec(
+    native_type: str,
+    sqla_type: type[types.TypeEngine],
+    attrs: dict[str, Any] | None,
+    generic_type: GenericDataType,
+    is_dttm: bool,
+) -> None:
+    from superset.db_engine_specs.couchbasedb import CouchbaseDbEngineSpec as spec
+
+    assert_column_spec(spec, native_type, sqla_type, attrs, generic_type, is_dttm)