""" 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