+
−"""
+
− A limited test module is used for a limited spatial database.
+
−"""
+
−import os, unittest
+
−from models import Country, City, State, Feature
+
−from django.contrib.gis import gdal
+
−from django.contrib.gis.geos import *
+
−from django.core.exceptions import ImproperlyConfigured
+
−
+
−class GeoModelTest(unittest.TestCase):
+
−    
+
−    def test01_initial_sql(self):
+
−        "Testing geographic initial SQL."
+
−        # Ensuring that data was loaded from initial SQL.
+
−        self.assertEqual(2, Country.objects.count())
+
−        self.assertEqual(8, City.objects.count())
+
−        self.assertEqual(2, State.objects.count())
+
−
+
−    def test02_proxy(self):
+
−        "Testing Lazy-Geometry support (using the GeometryProxy)."
+
−        #### Testing on a Point
+
−        pnt = Point(0, 0)
+
−        nullcity = City(name='NullCity', point=pnt)
+
−        nullcity.save()
+
−
+
−        # Making sure TypeError is thrown when trying to set with an
+
−        #  incompatible type.
+
−        for bad in [5, 2.0, LineString((0, 0), (1, 1))]:
+
−            try:
+
−                nullcity.point = bad
+
−            except TypeError:
+
−                pass
+
−            else:
+
−                self.fail('Should throw a TypeError')
+
−
+
−        # Now setting with a compatible GEOS Geometry, saving, and ensuring
+
−        #  the save took, notice no SRID is explicitly set.
+
−        new = Point(5, 23)
+
−        nullcity.point = new
+
−
+
−        # Ensuring that the SRID is automatically set to that of the 
+
−        #  field after assignment, but before saving.
+
−        self.assertEqual(4326, nullcity.point.srid)
+
−        nullcity.save()
+
−
+
−        # Ensuring the point was saved correctly after saving
+
−        self.assertEqual(new, City.objects.get(name='NullCity').point)
+
−
+
−        # Setting the X and Y of the Point
+
−        nullcity.point.x = 23
+
−        nullcity.point.y = 5
+
−        # Checking assignments pre & post-save.
+
−        self.assertNotEqual(Point(23, 5), City.objects.get(name='NullCity').point)
+
−        nullcity.save()
+
−        self.assertEqual(Point(23, 5), City.objects.get(name='NullCity').point)
+
−        nullcity.delete()
+
−
+
−        #### Testing on a Polygon
+
−        shell = LinearRing((0, 0), (0, 100), (100, 100), (100, 0), (0, 0))
+
−        inner = LinearRing((40, 40), (40, 60), (60, 60), (60, 40), (40, 40))
+
−
+
−        # Creating a State object using a built Polygon
+
−        ply = Polygon(shell, inner)
+
−        nullstate = State(name='NullState', poly=ply)
+
−        self.assertEqual(4326, nullstate.poly.srid) # SRID auto-set from None
+
−        nullstate.save()
+
−
+
−        ns = State.objects.get(name='NullState')
+
−        self.assertEqual(ply, ns.poly)
+
−        
+
−        # Testing the `ogr` and `srs` lazy-geometry properties.
+
−        if gdal.HAS_GDAL:
+
−            self.assertEqual(True, isinstance(ns.poly.ogr, gdal.OGRGeometry))
+
−            self.assertEqual(ns.poly.wkb, ns.poly.ogr.wkb)
+
−            self.assertEqual(True, isinstance(ns.poly.srs, gdal.SpatialReference))
+
−            self.assertEqual('WGS 84', ns.poly.srs.name)
+
−
+
−        # Changing the interior ring on the poly attribute.
+
−        new_inner = LinearRing((30, 30), (30, 70), (70, 70), (70, 30), (30, 30))
+
−        ns.poly[1] = new_inner
+
−        ply[1] = new_inner
+
−        self.assertEqual(4326, ns.poly.srid)
+
−        ns.save()
+
−        self.assertEqual(ply, State.objects.get(name='NullState').poly)
+
−        ns.delete()
+
−
+
−    def test03_contains_contained(self):
+
−        "Testing the 'contained', 'contains', and 'bbcontains' lookup types."
+
−        # Getting Texas, yes we were a country -- once ;)
+
−        texas = Country.objects.get(name='Texas')
+
−        
+
−        # Seeing what cities are in Texas, should get Houston and Dallas,
+
−        #  and Oklahoma City because MySQL 'within' only checks on the
+
−        #  _bounding box_ of the Geometries.
+
−        qs = City.objects.filter(point__within=texas.mpoly)
+
−        self.assertEqual(3, qs.count())
+
−        cities = ['Houston', 'Dallas', 'Oklahoma City']
+
−        for c in qs: self.assertEqual(True, c.name in cities)
+
−
+
−        # Pulling out some cities.
+
−        houston = City.objects.get(name='Houston')
+
−        wellington = City.objects.get(name='Wellington')
+
−        pueblo = City.objects.get(name='Pueblo')
+
−        okcity = City.objects.get(name='Oklahoma City')
+
−        lawrence = City.objects.get(name='Lawrence')
+
−
+
−        # Now testing contains on the countries using the points for
+
−        #  Houston and Wellington.
+
−        tx = Country.objects.get(mpoly__contains=houston.point) # Query w/GEOSGeometry
+
−        nz = Country.objects.get(mpoly__contains=wellington.point.hex) # Query w/EWKBHEX
+
−        ks = State.objects.get(poly__contains=lawrence.point)
+
−        self.assertEqual('Texas', tx.name)
+
−        self.assertEqual('New Zealand', nz.name)
+
−        self.assertEqual('Kansas', ks.name)
+
−
+
−        # Pueblo is not contained in Texas or New Zealand.
+
−        self.assertEqual(0, len(Country.objects.filter(mpoly__contains=pueblo.point))) # Query w/GEOSGeometry object
+
−
+
−        # OK City is contained w/in bounding box of Texas.
+
−        qs = Country.objects.filter(mpoly__bbcontains=okcity.point)
+
−        self.assertEqual(1, len(qs))
+
−        self.assertEqual('Texas', qs[0].name)
+
−
+
−    def test04_disjoint(self):
+
−        "Testing the `disjoint` lookup type."
+
−        ptown = City.objects.get(name='Pueblo')
+
−        qs1 = City.objects.filter(point__disjoint=ptown.point)
+
−        self.assertEqual(7, qs1.count())
+
−        # TODO: This query should work in MySQL, but it appears the
+
−        # `MBRDisjoint` function doesn't work properly (I went down
+
−        # to the SQL level for debugging and still got bogus answers).
+
−        #qs2 = State.objects.filter(poly__disjoint=ptown.point)
+
−        #self.assertEqual(1, qs2.count())
+
−        #self.assertEqual('Kansas', qs2[0].name)
+
−
+
−    def test05_equals(self):
+
−        "Testing the 'same_as' and 'equals' lookup types."
+
−        pnt = fromstr('POINT (-95.363151 29.763374)', srid=4326)
+
−        c1 = City.objects.get(point=pnt)
+
−        c2 = City.objects.get(point__same_as=pnt)
+
−        c3 = City.objects.get(point__equals=pnt)
+
−        for c in [c1, c2, c3]: self.assertEqual('Houston', c.name)
+
−
+
−    def test06_geometryfield(self):
+
−        "Testing GeometryField."
+
−        f1 = Feature(name='Point', geom=Point(1, 1))
+
−        f2 = Feature(name='LineString', geom=LineString((0, 0), (1, 1), (5, 5)))
+
−        f3 = Feature(name='Polygon', geom=Polygon(LinearRing((0, 0), (0, 5), (5, 5), (5, 0), (0, 0))))
+
−        f4 = Feature(name='GeometryCollection', 
+
−                     geom=GeometryCollection(Point(2, 2), LineString((0, 0), (2, 2)), 
+
−                                             Polygon(LinearRing((0, 0), (0, 5), (5, 5), (5, 0), (0, 0)))))
+
−        f1.save()
+
−        f2.save()
+
−        f3.save()
+
−        f4.save()
+
−
+
−        f_1 = Feature.objects.get(name='Point')
+
−        self.assertEqual(True, isinstance(f_1.geom, Point))
+
−        self.assertEqual((1.0, 1.0), f_1.geom.tuple)
+
−        f_2 = Feature.objects.get(name='LineString')
+
−        self.assertEqual(True, isinstance(f_2.geom, LineString))
+
−        self.assertEqual(((0.0, 0.0), (1.0, 1.0), (5.0, 5.0)), f_2.geom.tuple)
+
−
+
−        f_3 = Feature.objects.get(name='Polygon')
+
−        self.assertEqual(True, isinstance(f_3.geom, Polygon))
+
−        f_4 = Feature.objects.get(name='GeometryCollection')
+
−        self.assertEqual(True, isinstance(f_4.geom, GeometryCollection))
+
−        self.assertEqual(f_3.geom, f_4.geom[2])
+
−    
+
−    def test07_mysql_limitations(self):
+
−        "Testing that union(), kml(), gml() raise exceptions."
+
−        self.assertRaises(ImproperlyConfigured, City.objects.union, Point(5, 23), field_name='point')
+
−        self.assertRaises(ImproperlyConfigured, State.objects.all().kml, field_name='poly')
+
−        self.assertRaises(ImproperlyConfigured, Country.objects.all().gml, field_name='mpoly')
+
−
+
−from test_feeds import GeoFeedTest
+
−from test_sitemaps import GeoSitemapTest
+
−def suite():
+
−    s = unittest.TestSuite()
+
−    s.addTest(unittest.makeSuite(GeoModelTest))
+
−    s.addTest(unittest.makeSuite(GeoFeedTest))
+
−    s.addTest(unittest.makeSuite(GeoSitemapTest))
+
−    return s