=================================== FAILURES ===================================
__________________ Test_EmptyRowIterator.test_to_geodataframe __________________

self = Empty GeoDataFrame
Columns: []
Index: []

    @property
    def crs(self):
        """
        The Coordinate Reference System (CRS) represented as a ``pyproj.CRS``
        object.

        Returns None if the CRS is not set, and to set the value it
        :getter: Returns a ``pyproj.CRS`` or None. When setting, the value
        can be anything accepted by
        :meth:`pyproj.CRS.from_user_input() <pyproj.crs.CRS.from_user_input>`,
        such as an authority string (eg "EPSG:4326") or a WKT string.

        Examples
        --------

        >>> gdf.crs  # doctest: +SKIP
        <Geographic 2D CRS: EPSG:4326>
        Name: WGS 84
        Axis Info [ellipsoidal]:
        - Lat[north]: Geodetic latitude (degree)
        - Lon[east]: Geodetic longitude (degree)
        Area of Use:
        - name: World
        - bounds: (-180.0, -90.0, 180.0, 90.0)
        Datum: World Geodetic System 1984
        - Ellipsoid: WGS 84
        - Prime Meridian: Greenwich

        See also
        --------
        GeoDataFrame.set_crs : assign CRS
        GeoDataFrame.to_crs : re-project to another CRS

        """
        try:
>           return self.geometry.crs

.nox/unit-3-9/lib/python3.9/site-packages/geopandas/geodataframe.py:431:
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

self = Empty GeoDataFrame
Columns: []
Index: [], name = 'geometry'

    def __getattr__(self, name: str):
        """
        After regular attribute access, try looking up the name
        This allows simpler access to columns for interactive use.
        """
        # Note: obj.x will always call obj.__getattribute__('x') prior to
        # calling obj.__getattr__('x').
        if (
            name not in self._internal_names_set
            and name not in self._metadata
            and name not in self._accessors
            and self._info_axis._can_hold_identifiers_and_holds_name(name)
        ):
            return self[name]
>       return object.__getattribute__(self, name)

.nox/unit-3-9/lib/python3.9/site-packages/pandas/core/generic.py:5902:
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

self = Empty GeoDataFrame
Columns: []
Index: []

    def _get_geometry(self):
        if self._geometry_column_name not in self:
            if self._geometry_column_name is None:
                msg = (
                    "You are calling a geospatial method on the GeoDataFrame, "
                    "but the active geometry column to use has not been set. "
                )
            else:
                msg = (
                    "You are calling a geospatial method on the GeoDataFrame, "
                    f"but the active geometry column ('{self._geometry_column_name}') "
                    "is not present. "
                )
            geo_cols = list(self.columns[self.dtypes == "geometry"])
            if len(geo_cols) > 0:
                msg += (
                    f"\nThere are columns with geometry data type ({geo_cols}), and "
                    "you can either set one as the active geometry with "
                    'df.set_geometry("name") or access the column as a '
                    'GeoSeries (df["name"]) and call the method directly on it.'
                )
            else:
                msg += (
                    "\nThere are no existing columns with geometry data type. You can "
                    "add a geometry column as the active geometry column with "
                    "df.set_geometry. "
                )

>           raise AttributeError(msg)
E           AttributeError: You are calling a geospatial method on the GeoDataFrame, but the active geometry column ('geometry') is not present.
E           There are no existing columns with geometry data type. You can add a geometry column as the active geometry column with df.set_geometry.

.nox/unit-3-9/lib/python3.9/site-packages/geopandas/geodataframe.py:232: AttributeError

During handling of the above exception, another exception occurred:

self = <tests.unit.test_table.Test_EmptyRowIterator testMethod=test_to_geodataframe>

    @unittest.skipIf(geopandas is None, "Requires `geopandas`")
    def test_to_geodataframe(self):
        row_iterator = self._make_one()
        df = row_iterator.to_geodataframe(create_bqstorage_client=False)
        self.assertIsInstance(df, geopandas.GeoDataFrame)
        self.assertEqual(len(df), 0)  # verify the number of rows
>       self.assertIsNone(df.crs)

tests/unit/test_table.py:1972:
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
.nox/unit-3-9/lib/python3.9/site-packages/pandas/core/generic.py:5902: in __getattr__
    return object.__getattribute__(self, name)
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

self = Empty GeoDataFrame
Columns: []
Index: []

    @property
    def crs(self):
        """
        The Coordinate Reference System (CRS) represented as a ``pyproj.CRS``
        object.

        Returns None if the CRS is not set, and to set the value it
        :getter: Returns a ``pyproj.CRS`` or None. When setting, the value
        can be anything accepted by
        :meth:`pyproj.CRS.from_user_input() <pyproj.crs.CRS.from_user_input>`,
        such as an authority string (eg "EPSG:4326") or a WKT string.

        Examples
        --------

        >>> gdf.crs  # doctest: +SKIP
        <Geographic 2D CRS: EPSG:4326>
        Name: WGS 84
        Axis Info [ellipsoidal]:
        - Lat[north]: Geodetic latitude (degree)
        - Lon[east]: Geodetic longitude (degree)
        Area of Use:
        - name: World
        - bounds: (-180.0, -90.0, 180.0, 90.0)
        Datum: World Geodetic System 1984
        - Ellipsoid: WGS 84
        - Prime Meridian: Greenwich

        See also
        --------
        GeoDataFrame.set_crs : assign CRS
        GeoDataFrame.to_crs : re-project to another CRS

        """
        try:
            return self.geometry.crs
        except AttributeError:
>           raise AttributeError(
                "The CRS attribute of a GeoDataFrame without an active "
                "geometry column is not defined. Use GeoDataFrame.set_geometry "
                "to set the active geometry column."
            )
E           AttributeError: The CRS attribute of a GeoDataFrame without an active geometry column is not defined. Use GeoDataFrame.set_geometry to set the active geometry column.

.nox/unit-3-9/lib/python3.9/site-packages/geopandas/geodataframe.py:433: AttributeError