Fixed #34686 -- Added support for GEOS 3.12.

tests/gis_tests/geoapp/models.py

@@ -73,6 +73,13 @@ class Feature(NamedModel):
     geom = models.GeometryField()
 
 
+class ThreeDimensionalFeature(NamedModel):
+    geom = models.GeometryField(dim=3)
+
+    class Meta:
+        required_db_features = {"supports_3d_storage"}
+
+
 class MinusOneSRID(models.Model):
     geom = models.PointField(srid=-1)  # Minus one SRID.
 

tests/gis_tests/geoapp/tests.py

@@ -31,6 +31,7 @@ from .models import (
     NonConcreteModel,
     PennsylvaniaCity,
     State,
+    ThreeDimensionalFeature,
     Track,
 )
 
@@ -252,7 +253,13 @@ class GeoModelTest(TestCase):
         ]
         for klass in geometry_classes:
             g = klass(srid=4326)
-            feature = Feature.objects.create(name="Empty %s" % klass.__name__, geom=g)
+            model_class = Feature
+            if g.hasz:
+                if not connection.features.supports_3d_storage:
+                    continue
+                else:
+                    model_class = ThreeDimensionalFeature
+            feature = model_class.objects.create(name=f"Empty {klass.__name__}", geom=g)
             feature.refresh_from_db()
             if klass is LinearRing:
                 # LinearRing isn't representable in WKB, so GEOSGeomtry.wkb