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TST : add test for groupby aggregation dtype #43915

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Merged
merged 6 commits into from
Oct 29, 2021
Merged

TST : add test for groupby aggregation dtype #43915

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2b04a61
TST : add test for groupby aggregation dtype
OlivierCavadenti Oct 7, 2021
7588529
fix pre-commit
OlivierCavadenti Oct 7, 2021
7b0cb1b
add reduction_func parameter
OlivierCavadenti Oct 8, 2021
326eeb3
rename + change assert
OlivierCavadenti Oct 13, 2021
ac6e108
Merge branch 'pandas-dev:master' into tst-gh32793-groupbyagg-test
OlivierCavadenti Oct 28, 2021
829f4e8
mr returns
OlivierCavadenti Oct 28, 2021
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17 changes: 17 additions & 0 deletions pandas/tests/groupby/aggregate/test_aggregate.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1327,6 +1327,23 @@ def func(ser):
tm.assert_frame_equal(res, expected)


def test_groupby_aggregate_directory(reduction_func):
# GH#32793
if reduction_func not in ["corrwith", "nth"]:
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@jreback jreback Oct 28, 2021

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just do a return if the reduction_func is in rather than this big if

obj = DataFrame([[0, 1], [0, np.nan]])

obj.convert_dtypes()
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@jreback jreback Oct 28, 2021

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what are you expecting this to do?

df_agg_last = obj.groupby(0).agg(reduction_func)
df_agg_last_dir = obj.groupby(0).agg({1: reduction_func})

if reduction_func in ["size", "ngroup"]:
tm.assert_equal(df_agg_last.values, df_agg_last_dir[1].values)
assert df_agg_last.dtypes == df_agg_last_dir[1].dtypes
else:
tm.assert_frame_equal(df_agg_last, df_agg_last_dir)
tm.assert_series_equal(df_agg_last.dtypes, df_agg_last_dir.dtypes)


def test_group_mean_timedelta_nat():
# GH43132
data = Series(["1 day", "3 days", "NaT"], dtype="timedelta64[ns]")
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