--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/web/lib/django/contrib/gis/tests/geogapp/tests.py	Tue May 25 02:43:45 2010 +0200
@@ -0,0 +1,74 @@
+"""
+Tests for geography support in PostGIS 1.5+
+"""
+import os
+from django.contrib.gis import gdal
+from django.contrib.gis.measure import D
+from django.test import TestCase
+from models import City, County, Zipcode
+
+class GeographyTest(TestCase):
+
+    def test01_fixture_load(self):
+        "Ensure geography features loaded properly."
+        self.assertEqual(8, City.objects.count())
+
+    def test02_distance_lookup(self):
+        "Testing GeoQuerySet distance lookup support on non-point geography fields."
+        z = Zipcode.objects.get(code='77002')
+        cities1 = list(City.objects
+                       .filter(point__distance_lte=(z.poly, D(mi=500)))
+                       .order_by('name')
+                       .values_list('name', flat=True))
+        cities2 = list(City.objects
+                       .filter(point__dwithin=(z.poly, D(mi=500)))
+                       .order_by('name')
+                       .values_list('name', flat=True))
+        for cities in [cities1, cities2]:
+            self.assertEqual(['Dallas', 'Houston', 'Oklahoma City'], cities)
+
+    def test03_distance_method(self):
+        "Testing GeoQuerySet.distance() support on non-point geography fields."
+        # `GeoQuerySet.distance` is not allowed geometry fields.
+        htown = City.objects.get(name='Houston')
+        qs = Zipcode.objects.distance(htown.point)
+
+    def test04_invalid_operators_functions(self):
+        "Ensuring exceptions are raised for operators & functions invalid on geography fields."
+        # Only a subset of the geometry functions & operator are available
+        # to PostGIS geography types.  For more information, visit:
+        #  http://postgis.refractions.net/documentation/manual-1.5/ch08.html#PostGIS_GeographyFunctions
+        z = Zipcode.objects.get(code='77002')
+        # ST_Within not available.
+        self.assertRaises(ValueError, City.objects.filter(point__within=z.poly).count)
+        # `@` operator not available.
+        self.assertRaises(ValueError, City.objects.filter(point__contained=z.poly).count)
+
+    def test05_geography_layermapping(self):
+        "Testing LayerMapping support on models with geography fields."
+        # There is a similar test in `layermap` that uses the same data set,
+        # but the County model here is a bit different.
+        if not gdal.HAS_GDAL: return
+        from django.contrib.gis.utils import LayerMapping
+
+        # Getting the shapefile and mapping dictionary.
+        shp_path = os.path.realpath(os.path.join(os.path.dirname(__file__), '..', 'data'))
+        co_shp = os.path.join(shp_path, 'counties', 'counties.shp')
+        co_mapping = {'name' : 'Name',
+                      'state' : 'State',
+                      'mpoly' : 'MULTIPOLYGON',
+                      }
+
+        # Reference county names, number of polygons, and state names.
+        names = ['Bexar', 'Galveston', 'Harris', 'Honolulu', 'Pueblo']
+        num_polys = [1, 2, 1, 19, 1] # Number of polygons for each.
+        st_names = ['Texas', 'Texas', 'Texas', 'Hawaii', 'Colorado']
+
+        lm = LayerMapping(County, co_shp, co_mapping, source_srs=4269, unique='name')
+        lm.save(silent=True, strict=True)
+
+        for c, name, num_poly, state in zip(County.objects.order_by('name'), names, num_polys, st_names):
+            self.assertEqual(4326, c.mpoly.srid)
+            self.assertEqual(num_poly, len(c.mpoly))
+            self.assertEqual(name, c.name)
+            self.assertEqual(state, c.state)