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Added SpatialFeatures.empty_intersection_returns_none.

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Tim Graham 2020-11-11 22:23:22 -05:00 • committed by Mariusz Felisiak
parent 4c62cdaa10
commit 9f91122ed8
4 changed files with 20 additions and 10 deletions
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18
tests/gis_tests/geoapp/test_functions.py
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@ -12,7 +12,7 @@ from django.db import NotSupportedError, connection
from django.db.models import IntegerField, Sum, Value
from django.test import TestCase, skipUnlessDBFeature
from ..utils import FuncTestMixin, mariadb, mysql, oracle, postgis, spatialite
from ..utils import FuncTestMixin, mariadb, mysql, oracle, postgis
from .models import City, Country, CountryWebMercator, State, Track
@ -295,11 +295,10 @@ class GISFunctionsTests(FuncTestMixin, TestCase):
geom = Point(5, 23, srid=4326)
qs = Country.objects.annotate(inter=functions.Intersection('mpoly', geom))
for c in qs:
if spatialite or (mysql and not connection.features.supports_empty_geometry_collection) or oracle:
# When the intersection is empty, some databases return None.
expected = None
else:
expected = c.mpoly.intersection(geom)
expected = (
None if connection.features.empty_intersection_returns_none
else c.mpoly.intersection(geom)
)
self.assertEqual(c.inter, expected)
@skipUnlessDBFeature("has_IsValid_function")
@ -570,8 +569,11 @@ class GISFunctionsTests(FuncTestMixin, TestCase):
return
for c in qs:
self.assertTrue(c.mpoly.difference(geom).equals(c.difference))
if not (spatialite or mysql):
self.assertEqual(c.mpoly.intersection(geom), c.intersection)
expected_intersection = (
None if connection.features.empty_intersection_returns_none
else c.mpoly.intersection(geom)
)
self.assertEqual(c.intersection, expected_intersection)
self.assertTrue(c.mpoly.sym_difference(geom).equals(c.sym_difference))
self.assertTrue(c.mpoly.union(geom).equals(c.union))