| """ |
| 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 |
