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165 lines
5.2 KiB
Python
165 lines
5.2 KiB
Python
# Licensed to the Apache Software Foundation (ASF) under one
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# or more contributor license agreements. See the NOTICE file
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# distributed with this work for additional information
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# regarding copyright ownership. The ASF licenses this file
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# to you under the Apache License, Version 2.0 (the
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# "License"); you may not use this file except in compliance
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# with the License. You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing,
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# software distributed under the License is distributed on an
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# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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# KIND, either express or implied. See the License for the
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# specific language governing permissions and limitations
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# under the License.
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import pandas as pd
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import pytest
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from superset.exceptions import InvalidPostProcessingError
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from superset.utils import pandas_postprocessing as pp
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from superset.utils.pandas_postprocessing.utils import FLAT_COLUMN_SEPARATOR
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from tests.unit_tests.fixtures.dataframes import (
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multiple_metrics_df,
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single_metric_df,
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timeseries_df,
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)
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from tests.unit_tests.pandas_postprocessing.utils import series_to_list
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def test_cum_should_not_side_effect():
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_timeseries_df = timeseries_df.copy()
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pp.cum(
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df=timeseries_df,
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columns={"y": "y2"},
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operator="sum",
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)
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assert _timeseries_df.equals(timeseries_df)
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def test_cum():
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# create new column (cumsum)
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post_df = pp.cum(
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df=timeseries_df,
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columns={"y": "y2"},
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operator="sum",
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)
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assert post_df.columns.tolist() == ["label", "y", "y2"]
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assert series_to_list(post_df["label"]) == ["x", "y", "z", "q"]
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assert series_to_list(post_df["y"]) == [1.0, 2.0, 3.0, 4.0]
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assert series_to_list(post_df["y2"]) == [1.0, 3.0, 6.0, 10.0]
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# overwrite column (cumprod)
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post_df = pp.cum(
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df=timeseries_df,
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columns={"y": "y"},
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operator="prod",
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)
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assert post_df.columns.tolist() == ["label", "y"]
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assert series_to_list(post_df["y"]) == [1.0, 2.0, 6.0, 24.0]
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# overwrite column (cummin)
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post_df = pp.cum(
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df=timeseries_df,
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columns={"y": "y"},
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operator="min",
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)
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assert post_df.columns.tolist() == ["label", "y"]
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assert series_to_list(post_df["y"]) == [1.0, 1.0, 1.0, 1.0]
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# invalid operator
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with pytest.raises(InvalidPostProcessingError):
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pp.cum(
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df=timeseries_df,
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columns={"y": "y"},
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operator="abc",
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)
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def test_cum_after_pivot_with_single_metric():
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pivot_df = pp.pivot(
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df=single_metric_df,
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index=["dttm"],
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columns=["country"],
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aggregates={"sum_metric": {"operator": "sum"}},
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)
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"""
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sum_metric
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country UK US
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dttm
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2019-01-01 5 6
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2019-01-02 7 8
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"""
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cum_df = pp.cum(df=pivot_df, operator="sum", columns={"sum_metric": "sum_metric"})
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"""
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sum_metric
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country UK US
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dttm
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2019-01-01 5 6
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2019-01-02 12 14
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"""
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cum_and_flat_df = pp.flatten(cum_df)
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"""
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dttm sum_metric, UK sum_metric, US
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0 2019-01-01 5 6
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1 2019-01-02 12 14
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"""
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assert cum_and_flat_df.equals(
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pd.DataFrame(
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{
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"dttm": pd.to_datetime(["2019-01-01", "2019-01-02"]),
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FLAT_COLUMN_SEPARATOR.join(["sum_metric", "UK"]): [5, 12],
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FLAT_COLUMN_SEPARATOR.join(["sum_metric", "US"]): [6, 14],
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}
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)
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)
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def test_cum_after_pivot_with_multiple_metrics():
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pivot_df = pp.pivot(
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df=multiple_metrics_df,
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index=["dttm"],
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columns=["country"],
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aggregates={
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"sum_metric": {"operator": "sum"},
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"count_metric": {"operator": "sum"},
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},
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)
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"""
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count_metric sum_metric
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country UK US UK US
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dttm
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2019-01-01 1 2 5 6
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2019-01-02 3 4 7 8
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"""
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cum_df = pp.cum(
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df=pivot_df,
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operator="sum",
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columns={"sum_metric": "sum_metric", "count_metric": "count_metric"},
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)
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"""
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count_metric sum_metric
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country UK US UK US
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dttm
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2019-01-01 1 2 5 6
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2019-01-02 4 6 12 14
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"""
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flat_df = pp.flatten(cum_df)
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"""
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dttm count_metric, UK count_metric, US sum_metric, UK sum_metric, US
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0 2019-01-01 1 2 5 6
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1 2019-01-02 4 6 12 14
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"""
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assert flat_df.equals(
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pd.DataFrame(
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{
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"dttm": pd.to_datetime(["2019-01-01", "2019-01-02"]),
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FLAT_COLUMN_SEPARATOR.join(["count_metric", "UK"]): [1, 4],
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FLAT_COLUMN_SEPARATOR.join(["count_metric", "US"]): [2, 6],
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FLAT_COLUMN_SEPARATOR.join(["sum_metric", "UK"]): [5, 12],
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FLAT_COLUMN_SEPARATOR.join(["sum_metric", "US"]): [6, 14],
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}
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)
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)
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