def test_parsing_valid_values(self):
field = GeometryField()
# WKT string
geom = field.to_internal_value('POINT(1 0)')
self.assertEqual(geom, GEOSGeometry('POINT(1 0)'))
# GeoJSON string
geom = field.to_internal_value('{"type":"Point","coordinates":[1,0]}')
self.assertEqual(geom, GEOSGeometry('{"type":"Point","coordinates":[1,0]}'))
# GeoJSON dict
geom = field.to_internal_value({'type': 'Point', 'coordinates': [1, 0]})
self.assertEqual(geom, GEOSGeometry('{"type":"Point","coordinates":[1,0]}'))
# GEOS Geometry
geom = field.to_internal_value(GEOSGeometry('POINT(1 0)'))
self.assertEqual(geom, GEOSGeometry('POINT(1 0)'))
def test_parsing_invalid_values(self):
field = GeometryField()
# Invalid string
with self.assertRaises(ValidationError):
geom = field.to_internal_value('No geometry here')
# Invalid dictionary
with self.assertRaises(ValidationError):
geom = field.to_internal_value({'msg': 'No geometry here'})
# Non-dictionary
with self.assertRaises(ValidationError):
geom = field.to_internal_value(['No geometry here'])
# Non-JSON-encodable obejct
class CustomObject (object):
pass
with self.assertRaises(ValidationError):
geom = field.to_internal_value(CustomObject())