=================================== FAILURES ===================================
_____________________________ TestCfGrib.test_read _____________________________
self = <xarray.tests.test_backends.TestCfGrib object at 0x7fd47fc30b00>
    def test_read(self):
        expected = {'number': 2, 'time': 3, 'air_pressure': 2, 'latitude': 3,
                    'longitude': 4}
        with open_example_dataset('example.grib', engine='cfgrib') as ds:
>           assert ds.dims == expected
E           AssertionError: assert Frozen(Sorted...ngitude': 4})) == {'air_pressure...mber': 2, ...}
E             Full diff:
E             - Frozen(SortedKeysDict({'number': 2, 'time': 3, 'isobaricInhPa': 2, 'latitude': 3, 'longitude': 4}))
E             + {'air_pressure': 2, 'latitude': 3, 'longitude': 4, 'number': 2, 'time': 3}
xarray/tests/test_backends.py:2473: AssertionError
_____________________ TestCfGrib.test_read_filter_by_keys ______________________
self = <xarray.tests.test_backends.TestCfGrib object at 0x7fd4904b12b0>
    def test_read_filter_by_keys(self):
        kwargs = {'filter_by_keys': {'shortName': 't'}}
        expected = {'number': 2, 'time': 3, 'air_pressure': 2, 'latitude': 3,
                    'longitude': 4}
        with open_example_dataset('example.grib', engine='cfgrib',
                                  backend_kwargs=kwargs) as ds:
>           assert ds.dims == expected
E           AssertionError: assert Frozen(Sorted...ngitude': 4})) == {'air_pressure...mber': 2, ...}
E             Full diff:
E             - Frozen(SortedKeysDict({'number': 2, 'time': 3, 'isobaricInhPa': 2, 'latitude': 3, 'longitude': 4}))
E             + {'air_pressure': 2, 'latitude': 3, 'longitude': 4, 'number': 2, 'time': 3}
xarray/tests/test_backends.py:2483: AssertionError