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