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Fix infer_freq, check for subdtype "datetime64"/"timedelta64" #9999

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update infer_freq test
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kmuehlbauer committed Jan 29, 2025
commit 34b17e4743ec6799fe97ed08acfd557de39b4d45
6 changes: 3 additions & 3 deletions xarray/tests/test_cftimeindex.py
Original file line number Diff line number Diff line change
Expand Up @@ -1377,16 +1377,16 @@ def test_asi8_empty_cftimeindex():


@requires_cftime
def test_infer_freq_valid_types():
def test_infer_freq_valid_types(time_unit):
cf_indx = xr.cftime_range("2000-01-01", periods=3, freq="D")
assert xr.infer_freq(cf_indx) == "D"
assert xr.infer_freq(xr.DataArray(cf_indx)) == "D"

pd_indx = pd.date_range("2000-01-01", periods=3, freq="D")
pd_indx = pd.date_range("2000-01-01", periods=3, freq="D").as_unit(time_unit)
assert xr.infer_freq(pd_indx) == "D"
assert xr.infer_freq(xr.DataArray(pd_indx)) == "D"

pd_td_indx = pd.timedelta_range(start="1D", periods=3, freq="D")
pd_td_indx = pd.timedelta_range(start="1D", periods=3, freq="D").as_unit(time_unit)
assert xr.infer_freq(pd_td_indx) == "D"
assert xr.infer_freq(xr.DataArray(pd_td_indx)) == "D"

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