app/django/contrib/gis/tests/geoapp/tests_mysql.py
changeset 323 ff1a9aa48cfd
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/app/django/contrib/gis/tests/geoapp/tests_mysql.py	Tue Oct 14 16:00:59 2008 +0000
@@ -0,0 +1,183 @@
+"""
+ 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