Added feature flag for geometry_field_introspection; refs #22632 and #23504.

    # Does the backend support the django.contrib.gis.utils.add_srs_entry() utility?

    supports_add_srs_entry = True

    # Does the backend introspect GeometryField to its subtypes?

    supports_geometry_field_introspection = True

    # Reference implementation of 3D functions is:

    # http://postgis.net/docs/PostGIS_Special_Functions_Index.html#PostGIS_3D_Functions

class DatabaseFeatures(BaseSpatialFeatures, OracleDatabaseFeatures):

    supports_add_srs_entry = False

    supports_geometry_field_introspection = False

class DatabaseWrapper(OracleDatabaseWrapper):

from unittest import skipUnless

from django.core.management import call_command

from django.db import connections

from django.db import connection, connections

from django.test import TestCase, skipUnlessDBFeature

from django.contrib.gis.gdal import HAS_GDAL

from django.contrib.gis.geometry.test_data import TEST_DATA

                 table_name_filter=lambda tn: tn.startswith('inspectapp_'),

                 stdout=out)

        output = out.getvalue()

        if connection.features.supports_geometry_field_introspection:

            self.assertIn('geom = models.PolygonField()', output)

            self.assertIn('point = models.PointField()', output)

        else:

            self.assertIn('geom = models.GeometryField(', output)

            self.assertIn('point = models.GeometryField(', output)

        self.assertIn('objects = models.GeoManager()', output)