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Test that Dataset and DataArray resampling are identical #3412

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Oct 22, 2019
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Test that Dataset and DataArray resampling are identical #3412

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13 changes: 13 additions & 0 deletions xarray/tests/test_dataset.py
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Original file line number Diff line number Diff line change
Expand Up @@ -3593,6 +3593,19 @@ def test_resample_old_api(self):
with raises_regex(TypeError, r"resample\(\) no longer supports"):
ds.resample("1D", dim="time")

def test_resample_ds_da_are_the_same(self):
time = pd.date_range("2000-01-01", freq="6H", periods=365 * 4)
ds = xr.Dataset(
{
"foo": (("time", "x"), np.random.randn(365 * 4, 5)),
"time": time,
"x": np.arange(5),
}
)
assert_identical(
ds.resample(time="M").mean()["foo"], ds.foo.resample(time="M").mean()
)

def test_ds_resample_apply_func_args(self):
def func(arg1, arg2, arg3=0.0):
return arg1.mean("time") + arg2 + arg3
Expand Down