import os, unittest
from django.contrib.gis import gdal
from django.contrib.gis.db.backend import SpatialBackend
from django.contrib.gis.geos import *
from django.contrib.gis.measure import Distance
from django.contrib.gis.tests.utils import no_oracle, no_postgis, no_spatialite
from models import Country, City, PennsylvaniaCity, State
if not SpatialBackend.spatialite:
from models import Feature, MinusOneSRID
# TODO: Some tests depend on the success/failure of previous tests, these should
# be decoupled. This flag is an artifact of this problem, and makes debugging easier;
# specifically, the DISABLE flag will disables all tests, allowing problem tests to
# be examined individually.
DISABLE = False
class GeoModelTest(unittest.TestCase):
def test01_initial_sql(self):
"Testing geographic initial SQL."
if DISABLE: return
if SpatialBackend.oracle:
# Oracle doesn't allow strings longer than 4000 characters
# in SQL files, and I'm stumped on how to use Oracle BFILE's
# in PLSQL, so we set up the larger geometries manually, rather
# than relying on the initial SQL.
# Routine for returning the path to the data files.
data_dir = os.path.join(os.path.dirname(__file__), 'sql')
def get_file(wkt_file):
return os.path.join(data_dir, wkt_file)
State(name='Colorado', poly=fromfile(get_file('co.wkt'))).save()
State(name='Kansas', poly=fromfile(get_file('ks.wkt'))).save()
Country(name='Texas', mpoly=fromfile(get_file('tx.wkt'))).save()
Country(name='New Zealand', mpoly=fromfile(get_file('nz.wkt'))).save()
# Ensuring that data was loaded from initial SQL.
self.assertEqual(2, Country.objects.count())
self.assertEqual(8, City.objects.count())
# Only PostGIS can handle NULL geometries
if SpatialBackend.postgis or SpatialBackend.spatialite:
n_state = 3
else:
n_state = 2
self.assertEqual(n_state, State.objects.count())
def test02_proxy(self):
"Testing Lazy-Geometry support (using the GeometryProxy)."
if DISABLE: return
## 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()
@no_oracle # Oracle does not support KML.
@no_spatialite # SpatiaLite does not support KML.
def test03a_kml(self):
"Testing KML output from the database using GeoManager.kml()."
if DISABLE: return
# Should throw a TypeError when trying to obtain KML from a
# non-geometry field.
qs = City.objects.all()
self.assertRaises(TypeError, qs.kml, 'name')
# The reference KML depends on the version of PostGIS used
# (the output stopped including altitude in 1.3.3).
major, minor1, minor2 = SpatialBackend.version
ref_kml1 = '-104.609252,38.255001,0'
ref_kml2 = '-104.609252,38.255001'
if major == 1:
if minor1 > 3 or (minor1 == 3 and minor2 >= 3): ref_kml = ref_kml2
else: ref_kml = ref_kml1
else:
ref_kml = ref_kml2
# Ensuring the KML is as expected.
ptown1 = City.objects.kml(field_name='point', precision=9).get(name='Pueblo')
ptown2 = City.objects.kml(precision=9).get(name='Pueblo')
for ptown in [ptown1, ptown2]:
self.assertEqual(ref_kml, ptown.kml)
@no_spatialite # SpatiaLite does not support GML.
def test03b_gml(self):
"Testing GML output from the database using GeoManager.gml()."
if DISABLE: return
# Should throw a TypeError when tyring to obtain GML from a
# non-geometry field.
qs = City.objects.all()
self.assertRaises(TypeError, qs.gml, field_name='name')
ptown1 = City.objects.gml(field_name='point', precision=9).get(name='Pueblo')
ptown2 = City.objects.gml(precision=9).get(name='Pueblo')
if SpatialBackend.oracle:
# No precision parameter for Oracle :-/
import re
gml_regex = re.compile(r'-104.60925\d+,38.25500\d+ ')
for ptown in [ptown1, ptown2]:
self.assertEqual(True, bool(gml_regex.match(ptown.gml)))
else:
for ptown in [ptown1, ptown2]:
self.assertEqual('-104.609252,38.255001', ptown.gml)
def test04_transform(self):
"Testing the transform() GeoManager method."
if DISABLE: return
# Pre-transformed points for Houston and Pueblo.
htown = fromstr('POINT(1947516.83115183 6322297.06040572)', srid=3084)
ptown = fromstr('POINT(992363.390841912 481455.395105533)', srid=2774)
prec = 3 # Precision is low due to version variations in PROJ and GDAL.
# Asserting the result of the transform operation with the values in
# the pre-transformed points. Oracle does not have the 3084 SRID.
if not SpatialBackend.oracle:
h = City.objects.transform(htown.srid).get(name='Houston')
self.assertEqual(3084, h.point.srid)
self.assertAlmostEqual(htown.x, h.point.x, prec)
self.assertAlmostEqual(htown.y, h.point.y, prec)
p1 = City.objects.transform(ptown.srid, field_name='point').get(name='Pueblo')
p2 = City.objects.transform(srid=ptown.srid).get(name='Pueblo')
for p in [p1, p2]:
self.assertEqual(2774, p.point.srid)
self.assertAlmostEqual(ptown.x, p.point.x, prec)
self.assertAlmostEqual(ptown.y, p.point.y, prec)
@no_spatialite # SpatiaLite does not have an Extent function
def test05_extent(self):
"Testing the `extent` GeoQuerySet method."
if DISABLE: return
# Reference query:
# `SELECT ST_extent(point) FROM geoapp_city WHERE (name='Houston' or name='Dallas');`
# => BOX(-96.8016128540039 29.7633724212646,-95.3631439208984 32.7820587158203)
expected = (-96.8016128540039, 29.7633724212646, -95.3631439208984, 32.782058715820)
qs = City.objects.filter(name__in=('Houston', 'Dallas'))
extent = qs.extent()
for val, exp in zip(extent, expected):
self.assertAlmostEqual(exp, val, 4)
@no_oracle
@no_spatialite # SpatiaLite does not have a MakeLine function
def test06_make_line(self):
"Testing the `make_line` GeoQuerySet method."
if DISABLE: return
# Ensuring that a `TypeError` is raised on models without PointFields.
self.assertRaises(TypeError, State.objects.make_line)
self.assertRaises(TypeError, Country.objects.make_line)
# Reference query:
# SELECT AsText(ST_MakeLine(geoapp_city.point)) FROM geoapp_city;
ref_line = GEOSGeometry('LINESTRING(-95.363151 29.763374,-96.801611 32.782057,-97.521157 34.464642,174.783117 -41.315268,-104.609252 38.255001,-95.23506 38.971823,-87.650175 41.850385,-123.305196 48.462611)', srid=4326)
self.assertEqual(ref_line, City.objects.make_line())
def test09_disjoint(self):
"Testing the `disjoint` lookup type."
if DISABLE: return
ptown = City.objects.get(name='Pueblo')
qs1 = City.objects.filter(point__disjoint=ptown.point)
self.assertEqual(7, qs1.count())
if not (SpatialBackend.postgis or SpatialBackend.spatialite):
# TODO: Do NULL columns bork queries on PostGIS? The following
# error is encountered:
# psycopg2.ProgrammingError: invalid memory alloc request size 4294957297
#
# Similarly, on SpatiaLite Puerto Rico is also returned (could be a
# manifestation of
qs2 = State.objects.filter(poly__disjoint=ptown.point)
self.assertEqual(1, qs2.count())
self.assertEqual('Kansas', qs2[0].name)
def test10_contains_contained(self):
"Testing the 'contained', 'contains', and 'bbcontains' lookup types."
if DISABLE: return
# 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 'contained' only checks on the
# _bounding box_ of the Geometries.
if not SpatialBackend.oracle:
qs = City.objects.filter(point__contained=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
self.assertEqual('Texas', tx.name)
self.assertEqual('New Zealand', nz.name)
# Spatialite 2.3 thinks that Lawrence is in Puerto Rico (a NULL geometry).
if not SpatialBackend.spatialite:
ks = State.objects.get(poly__contains=lawrence.point)
self.assertEqual('Kansas', ks.name)
# Pueblo and Oklahoma City (even though OK City is within the bounding box of Texas)
# are not contained in Texas or New Zealand.
self.assertEqual(0, len(Country.objects.filter(mpoly__contains=pueblo.point))) # Query w/GEOSGeometry object
self.assertEqual(0, len(Country.objects.filter(mpoly__contains=okcity.point.wkt))) # Qeury w/WKT
# OK City is contained w/in bounding box of Texas.
if not SpatialBackend.oracle:
qs = Country.objects.filter(mpoly__bbcontains=okcity.point)
self.assertEqual(1, len(qs))
self.assertEqual('Texas', qs[0].name)
def test11_lookup_insert_transform(self):
"Testing automatic transform for lookups and inserts."
if DISABLE: return
# San Antonio in 'WGS84' (SRID 4326)
sa_4326 = 'POINT (-98.493183 29.424170)'
wgs_pnt = fromstr(sa_4326, srid=4326) # Our reference point in WGS84
# Oracle doesn't have SRID 3084, using 41157.
if SpatialBackend.oracle:
# San Antonio in 'Texas 4205, Southern Zone (1983, meters)' (SRID 41157)
# Used the following Oracle SQL to get this value:
# SELECT SDO_UTIL.TO_WKTGEOMETRY(SDO_CS.TRANSFORM(SDO_GEOMETRY('POINT (-98.493183 29.424170)', 4326), 41157)) FROM DUAL;
nad_wkt = 'POINT (300662.034646583 5416427.45974934)'
nad_srid = 41157
else:
# San Antonio in 'NAD83(HARN) / Texas Centric Lambert Conformal' (SRID 3084)
nad_wkt = 'POINT (1645978.362408288754523 6276356.025927528738976)' # Used ogr.py in gdal 1.4.1 for this transform
nad_srid = 3084
# Constructing & querying with a point from a different SRID. Oracle
# `SDO_OVERLAPBDYINTERSECT` operates differently from
# `ST_Intersects`, so contains is used instead.
nad_pnt = fromstr(nad_wkt, srid=nad_srid)
if SpatialBackend.oracle:
tx = Country.objects.get(mpoly__contains=nad_pnt)
else:
tx = Country.objects.get(mpoly__intersects=nad_pnt)
self.assertEqual('Texas', tx.name)
# Creating San Antonio. Remember the Alamo.
sa = City(name='San Antonio', point=nad_pnt)
sa.save()
# Now verifying that San Antonio was transformed correctly
sa = City.objects.get(name='San Antonio')
self.assertAlmostEqual(wgs_pnt.x, sa.point.x, 6)
self.assertAlmostEqual(wgs_pnt.y, sa.point.y, 6)
# If the GeometryField SRID is -1, then we shouldn't perform any
# transformation if the SRID of the input geometry is different.
# SpatiaLite does not support missing SRID values.
if not SpatialBackend.spatialite:
m1 = MinusOneSRID(geom=Point(17, 23, srid=4326))
m1.save()
self.assertEqual(-1, m1.geom.srid)
# Oracle does not support NULL geometries in its spatial index for
# some routines (e.g., SDO_GEOM.RELATE).
@no_oracle
@no_spatialite
def test12_null_geometries(self):
"Testing NULL geometry support, and the `isnull` lookup type."
if DISABLE: return
# Querying for both NULL and Non-NULL values.
nullqs = State.objects.filter(poly__isnull=True)
validqs = State.objects.filter(poly__isnull=False)
# Puerto Rico should be NULL (it's a commonwealth unincorporated territory)
self.assertEqual(1, len(nullqs))
self.assertEqual('Puerto Rico', nullqs[0].name)
# The valid states should be Colorado & Kansas
self.assertEqual(2, len(validqs))
state_names = [s.name for s in validqs]
self.assertEqual(True, 'Colorado' in state_names)
self.assertEqual(True, 'Kansas' in state_names)
# Saving another commonwealth w/a NULL geometry.
if not SpatialBackend.oracle:
# TODO: Fix saving w/NULL geometry on Oracle.
State(name='Northern Mariana Islands', poly=None).save()
@no_oracle # No specific `left` or `right` operators in Oracle.
@no_spatialite # No `left` or `right` operators in SpatiaLite.
def test13_left_right(self):
"Testing the 'left' and 'right' lookup types."
if DISABLE: return
# Left: A << B => true if xmax(A) < xmin(B)
# Right: A >> B => true if xmin(A) > xmax(B)
# See: BOX2D_left() and BOX2D_right() in lwgeom_box2dfloat4.c in PostGIS source.
# Getting the borders for Colorado & Kansas
co_border = State.objects.get(name='Colorado').poly
ks_border = State.objects.get(name='Kansas').poly
# Note: Wellington has an 'X' value of 174, so it will not be considered
# to the left of CO.
# These cities should be strictly to the right of the CO border.
cities = ['Houston', 'Dallas', 'San Antonio', 'Oklahoma City',
'Lawrence', 'Chicago', 'Wellington']
qs = City.objects.filter(point__right=co_border)
self.assertEqual(7, len(qs))
for c in qs: self.assertEqual(True, c.name in cities)
# These cities should be strictly to the right of the KS border.
cities = ['Chicago', 'Wellington']
qs = City.objects.filter(point__right=ks_border)
self.assertEqual(2, len(qs))
for c in qs: self.assertEqual(True, c.name in cities)
# Note: Wellington has an 'X' value of 174, so it will not be considered
# to the left of CO.
vic = City.objects.get(point__left=co_border)
self.assertEqual('Victoria', vic.name)
cities = ['Pueblo', 'Victoria']
qs = City.objects.filter(point__left=ks_border)
self.assertEqual(2, len(qs))
for c in qs: self.assertEqual(True, c.name in cities)
def test14_equals(self):
"Testing the 'same_as' and 'equals' lookup types."
if DISABLE: return
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 test15_relate(self):
"Testing the 'relate' lookup type."
if DISABLE: return
# To make things more interesting, we will have our Texas reference point in
# different SRIDs.
pnt1 = fromstr('POINT (649287.0363174 4177429.4494686)', srid=2847)
pnt2 = fromstr('POINT(-98.4919715741052 29.4333344025053)', srid=4326)
# Not passing in a geometry as first param shoud
# raise a type error when initializing the GeoQuerySet
self.assertRaises(TypeError, Country.objects.filter, mpoly__relate=(23, 'foo'))
# Making sure the right exception is raised for the given
# bad arguments.
for bad_args, e in [((pnt1, 0), TypeError), ((pnt2, 'T*T***FF*', 0), ValueError)]:
qs = Country.objects.filter(mpoly__relate=bad_args)
self.assertRaises(e, qs.count)
# Relate works differently for the different backends.
if SpatialBackend.postgis or SpatialBackend.spatialite:
contains_mask = 'T*T***FF*'
within_mask = 'T*F**F***'
intersects_mask = 'T********'
elif SpatialBackend.oracle:
contains_mask = 'contains'
within_mask = 'inside'
# TODO: This is not quite the same as the PostGIS mask above
intersects_mask = 'overlapbdyintersect'
# Testing contains relation mask.
self.assertEqual('Texas', Country.objects.get(mpoly__relate=(pnt1, contains_mask)).name)
self.assertEqual('Texas', Country.objects.get(mpoly__relate=(pnt2, contains_mask)).name)
# Testing within relation mask.
ks = State.objects.get(name='Kansas')
self.assertEqual('Lawrence', City.objects.get(point__relate=(ks.poly, within_mask)).name)
# Testing intersection relation mask.
if not SpatialBackend.oracle:
self.assertEqual('Texas', Country.objects.get(mpoly__relate=(pnt1, intersects_mask)).name)
self.assertEqual('Texas', Country.objects.get(mpoly__relate=(pnt2, intersects_mask)).name)
self.assertEqual('Lawrence', City.objects.get(point__relate=(ks.poly, intersects_mask)).name)
def test16_createnull(self):
"Testing creating a model instance and the geometry being None"
if DISABLE: return
c = City()
self.assertEqual(c.point, None)
def test17_unionagg(self):
"Testing the `unionagg` (aggregate union) GeoManager method."
if DISABLE: return
tx = Country.objects.get(name='Texas').mpoly
# Houston, Dallas, San Antonio -- Oracle has different order.
union1 = fromstr('MULTIPOINT(-98.493183 29.424170,-96.801611 32.782057,-95.363151 29.763374)')
union2 = fromstr('MULTIPOINT(-96.801611 32.782057,-95.363151 29.763374,-98.493183 29.424170)')
qs = City.objects.filter(point__within=tx)
self.assertRaises(TypeError, qs.unionagg, 'name')
# Using `field_name` keyword argument in one query and specifying an
# order in the other (which should not be used because this is
# an aggregate method on a spatial column)
u1 = qs.unionagg(field_name='point')
u2 = qs.order_by('name').unionagg()
tol = 0.00001
if SpatialBackend.oracle:
union = union2
else:
union = union1
self.assertEqual(True, union.equals_exact(u1, tol))
self.assertEqual(True, union.equals_exact(u2, tol))
# SpatiaLite will segfault trying to union a NULL geometry.
if not SpatialBackend.spatialite:
qs = City.objects.filter(name='NotACity')
self.assertEqual(None, qs.unionagg(field_name='point'))
@no_spatialite # SpatiaLite does not support abstract geometry columns
def test18_geometryfield(self):
"Testing GeometryField."
if DISABLE: return
Feature(name='Point', geom=Point(1, 1)).save()
Feature(name='LineString', geom=LineString((0, 0), (1, 1), (5, 5))).save()
Feature(name='Polygon', geom=Polygon(LinearRing((0, 0), (0, 5), (5, 5), (5, 0), (0, 0)))).save()
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))))).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 test19_centroid(self):
"Testing the `centroid` GeoQuerySet method."
if DISABLE: return
qs = State.objects.exclude(poly__isnull=True).centroid()
if SpatialBackend.oracle:
tol = 0.1
elif SpatialBackend.spatialite:
tol = 0.000001
else:
tol = 0.000000001
for s in qs:
self.assertEqual(True, s.poly.centroid.equals_exact(s.centroid, tol))
def test20_pointonsurface(self):
"Testing the `point_on_surface` GeoQuerySet method."
if DISABLE: return
# Reference values.
if SpatialBackend.oracle:
# SELECT SDO_UTIL.TO_WKTGEOMETRY(SDO_GEOM.SDO_POINTONSURFACE(GEOAPP_COUNTRY.MPOLY, 0.05)) FROM GEOAPP_COUNTRY;
ref = {'New Zealand' : fromstr('POINT (174.616364 -36.100861)', srid=4326),
'Texas' : fromstr('POINT (-103.002434 36.500397)', srid=4326),
}
elif SpatialBackend.postgis or SpatialBackend.spatialite:
# Using GEOSGeometry to compute the reference point on surface values
# -- since PostGIS also uses GEOS these should be the same.
ref = {'New Zealand' : Country.objects.get(name='New Zealand').mpoly.point_on_surface,
'Texas' : Country.objects.get(name='Texas').mpoly.point_on_surface
}
for cntry in Country.objects.point_on_surface():
if SpatialBackend.spatialite:
# XXX This seems to be a WKT-translation-related precision issue?
tol = 0.00001
else: tol = 0.000000001
self.assertEqual(True, ref[cntry.name].equals_exact(cntry.point_on_surface, tol))
@no_oracle
def test21_scale(self):
"Testing the `scale` GeoQuerySet method."
if DISABLE: return
xfac, yfac = 2, 3
qs = Country.objects.scale(xfac, yfac, model_att='scaled')
for c in qs:
for p1, p2 in zip(c.mpoly, c.scaled):
for r1, r2 in zip(p1, p2):
for c1, c2 in zip(r1.coords, r2.coords):
# XXX The low precision is for SpatiaLite
self.assertAlmostEqual(c1[0] * xfac, c2[0], 5)
self.assertAlmostEqual(c1[1] * yfac, c2[1], 5)
@no_oracle
def test22_translate(self):
"Testing the `translate` GeoQuerySet method."
if DISABLE: return
xfac, yfac = 5, -23
qs = Country.objects.translate(xfac, yfac, model_att='translated')
for c in qs:
for p1, p2 in zip(c.mpoly, c.translated):
for r1, r2 in zip(p1, p2):
for c1, c2 in zip(r1.coords, r2.coords):
# XXX The low precision is for SpatiaLite
self.assertAlmostEqual(c1[0] + xfac, c2[0], 5)
self.assertAlmostEqual(c1[1] + yfac, c2[1], 5)
def test23_numgeom(self):
"Testing the `num_geom` GeoQuerySet method."
if DISABLE: return
# Both 'countries' only have two geometries.
for c in Country.objects.num_geom(): self.assertEqual(2, c.num_geom)
for c in City.objects.filter(point__isnull=False).num_geom():
# Oracle will return 1 for the number of geometries on non-collections,
# whereas PostGIS will return None.
if SpatialBackend.postgis: self.assertEqual(None, c.num_geom)
else: self.assertEqual(1, c.num_geom)
@no_spatialite # SpatiaLite can only count vertices in LineStrings
def test24_numpoints(self):
"Testing the `num_points` GeoQuerySet method."
if DISABLE: return
for c in Country.objects.num_points():
self.assertEqual(c.mpoly.num_points, c.num_points)
if not SpatialBackend.oracle:
# Oracle cannot count vertices in Point geometries.
for c in City.objects.num_points(): self.assertEqual(1, c.num_points)
def test25_geoset(self):
"Testing the `difference`, `intersection`, `sym_difference`, and `union` GeoQuerySet methods."
if DISABLE: return
geom = Point(5, 23)
tol = 1
qs = Country.objects.all().difference(geom).sym_difference(geom).union(geom)
# XXX For some reason SpatiaLite does something screwey with the Texas geometry here. Also,
# XXX it doesn't like the null intersection.
if SpatialBackend.spatialite:
qs = qs.exclude(name='Texas')
else:
qs = qs.intersection(geom)
for c in qs:
if SpatialBackend.oracle:
# Should be able to execute the queries; however, they won't be the same
# as GEOS (because Oracle doesn't use GEOS internally like PostGIS or
# SpatiaLite).
pass
else:
self.assertEqual(c.mpoly.difference(geom), c.difference)
if not SpatialBackend.spatialite:
self.assertEqual(c.mpoly.intersection(geom), c.intersection)
self.assertEqual(c.mpoly.sym_difference(geom), c.sym_difference)
self.assertEqual(c.mpoly.union(geom), c.union)
def test26_inherited_geofields(self):
"Test GeoQuerySet methods on inherited Geometry fields."
if DISABLE: return
# Creating a Pennsylvanian city.
mansfield = PennsylvaniaCity.objects.create(name='Mansfield', county='Tioga', point='POINT(-77.071445 41.823881)')
# All transformation SQL will need to be performed on the
# _parent_ table.
qs = PennsylvaniaCity.objects.transform(32128)
self.assertEqual(1, qs.count())
for pc in qs: self.assertEqual(32128, pc.point.srid)
from test_feeds import GeoFeedTest
from test_regress import GeoRegressionTests
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))
s.addTest(unittest.makeSuite(GeoRegressionTests))
return s