fix: datetime.data in series (#20618)

tests/unit_tests/common/test_dataframe_utils.py

@@ -0,0 +1,50 @@
+# 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.
+import datetime
+
+import pandas as pd
+
+from superset.common.utils import dataframe_utils
+
+
+def test_is_datetime_series():
+    assert not dataframe_utils.is_datetime_series(None)
+    assert not dataframe_utils.is_datetime_series(pd.DataFrame({"foo": [1]}))
+    assert not dataframe_utils.is_datetime_series(pd.Series([1, 2, 3]))
+    assert not dataframe_utils.is_datetime_series(pd.Series(["1", "2", "3"]))
+    assert not dataframe_utils.is_datetime_series(pd.Series())
+    assert not dataframe_utils.is_datetime_series(pd.Series([None, None]))
+    assert dataframe_utils.is_datetime_series(
+        pd.Series([datetime.date(2018, 1, 1), datetime.date(2018, 1, 2), None])
+    )
+    assert dataframe_utils.is_datetime_series(
+        pd.Series([datetime.date(2018, 1, 1), datetime.date(2018, 1, 2)])
+    )
+    assert dataframe_utils.is_datetime_series(
+        pd.Series([datetime.datetime(2018, 1, 1), datetime.datetime(2018, 1, 2), None])
+    )
+    assert dataframe_utils.is_datetime_series(
+        pd.Series([datetime.datetime(2018, 1, 1), datetime.datetime(2018, 1, 2)])
+    )
+    assert dataframe_utils.is_datetime_series(
+        pd.date_range(datetime.date(2018, 1, 1), datetime.date(2018, 2, 1)).to_series()
+    )
+    assert dataframe_utils.is_datetime_series(
+        pd.date_range(
+            datetime.datetime(2018, 1, 1), datetime.datetime(2018, 2, 1)
+        ).to_series()
+    )