test_generic.py 文件源码

def test_to_xarray(self):

        tm._skip_if_no_xarray()
        from xarray import DataArray

        p = tm.makePanel4D()

        result = p.to_xarray()
        self.assertIsInstance(result, DataArray)
        self.assertEqual(len(result.coords), 4)
        assert_almost_equal(list(result.coords.keys()),
                            ['labels', 'items', 'major_axis', 'minor_axis'])
        self.assertEqual(len(result.dims), 4)

        # non-convertible
        self.assertRaises(ValueError, lambda: result.to_pandas())