django1/django/contrib/gis/tests/geoapp/tests_mysql.py

184 lines
7.8 KiB
Python

"""
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