TST: update is_closed test for shapely 1.8.2 (#2437)

geopandas/_compat.py

@@ -28,6 +28,7 @@ PANDAS_GE_14 = Version(pd.__version__) >= Version("1.4.0rc0")
 
 
 SHAPELY_GE_18 = Version(shapely.__version__) >= Version("1.8")
+SHAPELY_GE_182 = Version(shapely.__version__) >= Version("1.8.2")
 SHAPELY_GE_20 = Version(shapely.__version__) >= Version("2.0")
 
 GEOS_GE_390 = shapely.geos.geos_version >= (3, 9, 0)

geopandas/tests/test_array.py

@@ -467,8 +467,18 @@ def test_unary_predicates(attr):
         # empty Linearring.is_ring gives False with Shapely < 2.0
         if compat.USE_PYGEOS and not compat.SHAPELY_GE_20:
             expected[-2] = True
+    elif (
+        attr == "is_closed"
+        and compat.USE_PYGEOS
+        and compat.SHAPELY_GE_182
+        and not compat.SHAPELY_GE_20
+    ):
+        # In shapely 1.8.2, is_closed was changed to return always True for
+        # Polygon/MultiPolygon, while PyGEOS returns always False
+        expected = [False] * len(vals)
     else:
         expected = [getattr(t, attr) if t is not None else na_value for t in vals]
+
     assert result.tolist() == expected