Function test_encode_decode_roundtrip_datetime64

xarray/tests/test_coding_times.py:1109–1121

(
    freq, time_unit: PDDatetimeUnitOptions
)

@pytest.mark.parametrize("freq", FREQUENCIES_TO_ENCODING_UNITS.keys())
def test_encode_decode_roundtrip_datetime64(
    freq, time_unit: PDDatetimeUnitOptions
) -> None:
    # See GH 4045. Prior to GH 4684 this test would fail for frequencies of
    # "s", "ms", "us", and "ns".
    initial_time = pd.date_range("1678-01-01", periods=1)
    times = initial_time.append(pd.date_range("1968", periods=2, freq=freq))
    variable = Variable(["time"], times)
    encoded = conventions.encode_cf_variable(variable)
    decoded = conventions.decode_cf_variable(
        "time", encoded, decode_times=CFDatetimeCoder(time_unit=time_unit)
    )
    assert_equal(variable, decoded)


@requires_cftime