fix: corrects test for non-existent attribute (#1395)

* fix: corrects test for non-existent attribute

* updates import statement to fix linting issue

* updates a test to check for Python version

* updates comments

Author: chalmerlowe

google/cloud/bigquery/table.py

@@ -40,10 +40,11 @@
 
 try:
     import shapely  # type: ignore
+    from shapely import wkt  # type: ignore
 except ImportError:
     shapely = None
 else:
-    _read_wkt = shapely.wkt.loads
+    _read_wkt = wkt.loads
 
 import google.api_core.exceptions
 from google.api_core.page_iterator import HTTPIterator

samples/geography/requirements.txt

@@ -10,7 +10,7 @@ db-dtypes==1.0.4
 Fiona==1.8.22
 geojson==2.5.0
 geopandas===0.10.2; python_version == '3.7'
-geopandas==0.11.1; python_version >= '3.8'
+geopandas==0.12.1; python_version >= '3.8'
 google-api-core==2.10.2
 google-auth==2.13.0
 google-cloud-bigquery==3.3.5

tests/unit/test_table.py

@@ -15,6 +15,7 @@
 import datetime
 import logging
 import re
+from sys import version_info
 import time
 import types
 import unittest
@@ -1969,7 +1970,10 @@ def test_to_geodataframe(self):
         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)
+        if version_info.major == 3 and version_info.minor > 7:
+            assert not hasattr(df, "crs")  # used with Python > 3.7
+        else:
+            self.assertIsNone(df.crs)  # used with Python == 3.7
 
 
 class TestRowIterator(unittest.TestCase):