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Diffstat (limited to 'lib/python2.7/site-packages/django/contrib/gis/tests/geoapp/tests.py')
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diff --git a/lib/python2.7/site-packages/django/contrib/gis/tests/geoapp/tests.py b/lib/python2.7/site-packages/django/contrib/gis/tests/geoapp/tests.py new file mode 100644 index 0000000..617d92b --- /dev/null +++ b/lib/python2.7/site-packages/django/contrib/gis/tests/geoapp/tests.py @@ -0,0 +1,788 @@ +from __future__ import absolute_import + +import re + +from django.db import connection +from django.contrib.gis import gdal +from django.contrib.gis.geos import HAS_GEOS +from django.contrib.gis.tests.utils import ( + HAS_SPATIAL_DB, no_mysql, no_oracle, no_spatialite, + mysql, oracle, postgis, spatialite) +from django.test import TestCase +from django.utils import six, unittest +from django.utils.unittest import skipUnless + +if HAS_GEOS: + from django.contrib.gis.geos import (fromstr, GEOSGeometry, + Point, LineString, LinearRing, Polygon, GeometryCollection) + + from .models import Country, City, PennsylvaniaCity, State, Track + +if HAS_GEOS and not spatialite: + from .models import Feature, MinusOneSRID + + +def postgis_bug_version(): + spatial_version = getattr(connection.ops, "spatial_version", (0,0,0)) + return spatial_version and (2, 0, 0) <= spatial_version <= (2, 0, 1) + + +@skipUnless(HAS_GEOS and HAS_SPATIAL_DB, "Geos and spatial db are required.") +class GeoModelTest(TestCase): + + def test_fixtures(self): + "Testing geographic model initialization from fixtures." + # Ensuring that data was loaded from initial data fixtures. + self.assertEqual(2, Country.objects.count()) + self.assertEqual(8, City.objects.count()) + self.assertEqual(2, State.objects.count()) + + def test_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() + + @no_mysql + def test_lookup_insert_transform(self): + "Testing automatic transform for lookups and inserts." + # 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 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 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.objects.create(name='San Antonio', point=nad_pnt) + + # 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 spatialite: + m1 = MinusOneSRID(geom=Point(17, 23, srid=4326)) + m1.save() + self.assertEqual(-1, m1.geom.srid) + + def test_createnull(self): + "Testing creating a model instance and the geometry being None" + c = City() + self.assertEqual(c.point, None) + + @no_spatialite # SpatiaLite does not support abstract geometry columns + def test_geometryfield(self): + "Testing the general GeometryField." + 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]) + + @no_mysql + def test_inherited_geofields(self): + "Test GeoQuerySet methods on inherited Geometry fields." + # 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) + + def test_raw_sql_query(self): + "Testing raw SQL query." + cities1 = City.objects.all() + # Only PostGIS would support a 'select *' query because of its recognized + # HEXEWKB format for geometry fields + as_text = 'ST_AsText' if postgis else 'asText' + cities2 = City.objects.raw('select id, name, %s(point) from geoapp_city' % as_text) + self.assertEqual(len(cities1), len(list(cities2))) + self.assertTrue(isinstance(cities2[0].point, Point)) + + +@skipUnless(HAS_GEOS and HAS_SPATIAL_DB, "Geos and spatial db are required.") +class GeoLookupTest(TestCase): + + @no_mysql + def test_disjoint_lookup(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()) + + qs2 = State.objects.filter(poly__disjoint=ptown.point) + self.assertEqual(1, qs2.count()) + self.assertEqual('Kansas', qs2[0].name) + + def test_contains_contained_lookups(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 'contained' only checks on the + # _bounding box_ of the Geometries. + if not 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 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((mysql and 1) or 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 oracle: + qs = Country.objects.filter(mpoly__bbcontains=okcity.point) + self.assertEqual(1, len(qs)) + self.assertEqual('Texas', qs[0].name) + + # Only PostGIS has `left` and `right` lookup types. + @no_mysql + @no_oracle + @no_spatialite + def test_left_right_lookups(self): + "Testing the 'left' and 'right' lookup types." + # 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', 'Oklahoma City', + 'Lawrence', 'Chicago', 'Wellington'] + qs = City.objects.filter(point__right=co_border) + self.assertEqual(6, 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) + + # The left/right lookup tests are known failures on PostGIS 2.0/2.0.1 + # http://trac.osgeo.org/postgis/ticket/2035 + if postgis_bug_version(): + test_left_right_lookups = unittest.expectedFailure(test_left_right_lookups) + + def test_equals_lookups(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) + + @no_mysql + def test_null_geometries(self): + "Testing NULL geometry support, and the `isnull` lookup type." + # Creating a state with a NULL boundary. + State.objects.create(name='Puerto Rico') + + # 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. + nmi = State.objects.create(name='Northern Mariana Islands', poly=None) + self.assertEqual(nmi.poly, None) + + # Assigning a geomery and saving -- then UPDATE back to NULL. + nmi.poly = 'POLYGON((0 0,1 0,1 1,1 0,0 0))' + nmi.save() + State.objects.filter(name='Northern Mariana Islands').update(poly=None) + self.assertEqual(None, State.objects.get(name='Northern Mariana Islands').poly) + + @no_mysql + def test_relate_lookup(self): + "Testing the 'relate' lookup type." + # 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(ValueError, 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), ValueError), ((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 postgis or spatialite: + contains_mask = 'T*T***FF*' + within_mask = 'T*F**F***' + intersects_mask = 'T********' + elif 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 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) + + +@skipUnless(HAS_GEOS and HAS_SPATIAL_DB, "Geos and spatial db are required.") +class GeoQuerySetTest(TestCase): + # Please keep the tests in GeoQuerySet method's alphabetic order + + @no_mysql + def test_centroid(self): + "Testing the `centroid` GeoQuerySet method." + qs = State.objects.exclude(poly__isnull=True).centroid() + if oracle: + tol = 0.1 + elif spatialite: + tol = 0.000001 + else: + tol = 0.000000001 + for s in qs: + self.assertEqual(True, s.poly.centroid.equals_exact(s.centroid, tol)) + + @no_mysql + def test_diff_intersection_union(self): + "Testing the `difference`, `intersection`, `sym_difference`, and `union` GeoQuerySet methods." + 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 spatialite: + qs = qs.exclude(name='Texas') + else: + qs = qs.intersection(geom) + + for c in qs: + if 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 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) + + @no_mysql + @no_spatialite # SpatiaLite does not have an Extent function + def test_extent(self): + "Testing the `extent` GeoQuerySet method." + # 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_mysql + @no_oracle + @no_spatialite + def test_force_rhr(self): + "Testing GeoQuerySet.force_rhr()." + rings = ( ( (0, 0), (5, 0), (0, 5), (0, 0) ), + ( (1, 1), (1, 3), (3, 1), (1, 1) ), + ) + rhr_rings = ( ( (0, 0), (0, 5), (5, 0), (0, 0) ), + ( (1, 1), (3, 1), (1, 3), (1, 1) ), + ) + State.objects.create(name='Foo', poly=Polygon(*rings)) + s = State.objects.force_rhr().get(name='Foo') + self.assertEqual(rhr_rings, s.force_rhr.coords) + + @no_mysql + @no_oracle + @no_spatialite + def test_geohash(self): + "Testing GeoQuerySet.geohash()." + if not connection.ops.geohash: return + # Reference query: + # SELECT ST_GeoHash(point) FROM geoapp_city WHERE name='Houston'; + # SELECT ST_GeoHash(point, 5) FROM geoapp_city WHERE name='Houston'; + ref_hash = '9vk1mfq8jx0c8e0386z6' + h1 = City.objects.geohash().get(name='Houston') + h2 = City.objects.geohash(precision=5).get(name='Houston') + self.assertEqual(ref_hash, h1.geohash) + self.assertEqual(ref_hash[:5], h2.geohash) + + def test_geojson(self): + "Testing GeoJSON output from the database using GeoQuerySet.geojson()." + # Only PostGIS 1.3.4+ and SpatiaLite 3.0+ support GeoJSON. + if not connection.ops.geojson: + self.assertRaises(NotImplementedError, Country.objects.all().geojson, field_name='mpoly') + return + + pueblo_json = '{"type":"Point","coordinates":[-104.609252,38.255001]}' + houston_json = '{"type":"Point","crs":{"type":"name","properties":{"name":"EPSG:4326"}},"coordinates":[-95.363151,29.763374]}' + victoria_json = '{"type":"Point","bbox":[-123.30519600,48.46261100,-123.30519600,48.46261100],"coordinates":[-123.305196,48.462611]}' + chicago_json = '{"type":"Point","crs":{"type":"name","properties":{"name":"EPSG:4326"}},"bbox":[-87.65018,41.85039,-87.65018,41.85039],"coordinates":[-87.65018,41.85039]}' + if postgis and connection.ops.spatial_version < (1, 4, 0): + pueblo_json = '{"type":"Point","coordinates":[-104.60925200,38.25500100]}' + houston_json = '{"type":"Point","crs":{"type":"EPSG","properties":{"EPSG":4326}},"coordinates":[-95.36315100,29.76337400]}' + victoria_json = '{"type":"Point","bbox":[-123.30519600,48.46261100,-123.30519600,48.46261100],"coordinates":[-123.30519600,48.46261100]}' + elif spatialite: + victoria_json = '{"type":"Point","bbox":[-123.305196,48.462611,-123.305196,48.462611],"coordinates":[-123.305196,48.462611]}' + + # Precision argument should only be an integer + self.assertRaises(TypeError, City.objects.geojson, precision='foo') + + # Reference queries and values. + # SELECT ST_AsGeoJson("geoapp_city"."point", 8, 0) FROM "geoapp_city" WHERE "geoapp_city"."name" = 'Pueblo'; + self.assertEqual(pueblo_json, City.objects.geojson().get(name='Pueblo').geojson) + + # 1.3.x: SELECT ST_AsGeoJson("geoapp_city"."point", 8, 1) FROM "geoapp_city" WHERE "geoapp_city"."name" = 'Houston'; + # 1.4.x: SELECT ST_AsGeoJson("geoapp_city"."point", 8, 2) FROM "geoapp_city" WHERE "geoapp_city"."name" = 'Houston'; + # This time we want to include the CRS by using the `crs` keyword. + self.assertEqual(houston_json, City.objects.geojson(crs=True, model_att='json').get(name='Houston').json) + + # 1.3.x: SELECT ST_AsGeoJson("geoapp_city"."point", 8, 2) FROM "geoapp_city" WHERE "geoapp_city"."name" = 'Victoria'; + # 1.4.x: SELECT ST_AsGeoJson("geoapp_city"."point", 8, 1) FROM "geoapp_city" WHERE "geoapp_city"."name" = 'Houston'; + # This time we include the bounding box by using the `bbox` keyword. + self.assertEqual(victoria_json, City.objects.geojson(bbox=True).get(name='Victoria').geojson) + + # 1.(3|4).x: SELECT ST_AsGeoJson("geoapp_city"."point", 5, 3) FROM "geoapp_city" WHERE "geoapp_city"."name" = 'Chicago'; + # Finally, we set every available keyword. + self.assertEqual(chicago_json, City.objects.geojson(bbox=True, crs=True, precision=5).get(name='Chicago').geojson) + + def test_gml(self): + "Testing GML output from the database using GeoQuerySet.gml()." + if mysql or (spatialite and not connection.ops.gml) : + self.assertRaises(NotImplementedError, Country.objects.all().gml, field_name='mpoly') + 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 oracle: + # No precision parameter for Oracle :-/ + gml_regex = re.compile(r'^<gml:Point srsName="SDO:4326" xmlns:gml="http://www.opengis.net/gml"><gml:coordinates decimal="\." cs="," ts=" ">-104.60925\d+,38.25500\d+ </gml:coordinates></gml:Point>') + elif spatialite and connection.ops.spatial_version < (3, 0, 0): + # Spatialite before 3.0 has extra colon in SrsName + gml_regex = re.compile(r'^<gml:Point SrsName="EPSG::4326"><gml:coordinates decimal="\." cs="," ts=" ">-104.609251\d+,38.255001</gml:coordinates></gml:Point>') + else: + gml_regex = re.compile(r'^<gml:Point srsName="EPSG:4326"><gml:coordinates>-104\.60925\d+,38\.255001</gml:coordinates></gml:Point>') + + for ptown in [ptown1, ptown2]: + self.assertTrue(gml_regex.match(ptown.gml)) + + # PostGIS < 1.5 doesn't include dimension im GMLv3 output. + if postgis and connection.ops.spatial_version >= (1, 5, 0): + self.assertIn('<gml:pos srsDimension="2">', + City.objects.gml(version=3).get(name='Pueblo').gml) + + def test_kml(self): + "Testing KML output from the database using GeoQuerySet.kml()." + # Only PostGIS and Spatialite (>=2.4.0-RC4) support KML serialization + if not (postgis or (spatialite and connection.ops.kml)): + self.assertRaises(NotImplementedError, State.objects.all().kml, field_name='poly') + 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). + if connection.ops.spatial_version >= (1, 3, 3): + ref_kml = '<Point><coordinates>-104.609252,38.255001</coordinates></Point>' + else: + ref_kml = '<Point><coordinates>-104.609252,38.255001,0</coordinates></Point>' + + # 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) + + # Only PostGIS has support for the MakeLine aggregate. + @no_mysql + @no_oracle + @no_spatialite + def test_make_line(self): + "Testing the `make_line` GeoQuerySet method." + # 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()) + + @no_mysql + def test_num_geom(self): + "Testing the `num_geom` GeoQuerySet method." + # 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 and PostGIS 2.0+ will return 1 for the number of + # geometries on non-collections, whereas PostGIS < 2.0.0 + # will return None. + if postgis and connection.ops.spatial_version < (2, 0, 0): + self.assertIsNone(c.num_geom) + else: + self.assertEqual(1, c.num_geom) + + @no_mysql + @no_spatialite # SpatiaLite can only count vertices in LineStrings + def test_num_points(self): + "Testing the `num_points` GeoQuerySet method." + for c in Country.objects.num_points(): + self.assertEqual(c.mpoly.num_points, c.num_points) + + if not oracle: + # Oracle cannot count vertices in Point geometries. + for c in City.objects.num_points(): self.assertEqual(1, c.num_points) + + @no_mysql + def test_point_on_surface(self): + "Testing the `point_on_surface` GeoQuerySet method." + # Reference values. + if 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 postgis or 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 c in Country.objects.point_on_surface(): + if spatialite: + # XXX This seems to be a WKT-translation-related precision issue? + tol = 0.00001 + else: + tol = 0.000000001 + self.assertEqual(True, ref[c.name].equals_exact(c.point_on_surface, tol)) + + @no_mysql + @no_spatialite + def test_reverse_geom(self): + "Testing GeoQuerySet.reverse_geom()." + coords = [ (-95.363151, 29.763374), (-95.448601, 29.713803) ] + Track.objects.create(name='Foo', line=LineString(coords)) + t = Track.objects.reverse_geom().get(name='Foo') + coords.reverse() + self.assertEqual(tuple(coords), t.reverse_geom.coords) + if oracle: + self.assertRaises(TypeError, State.objects.reverse_geom) + + @no_mysql + @no_oracle + def test_scale(self): + "Testing the `scale` GeoQuerySet method." + xfac, yfac = 2, 3 + tol = 5 # XXX The low precision tolerance is for SpatiaLite + 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): + self.assertAlmostEqual(c1[0] * xfac, c2[0], tol) + self.assertAlmostEqual(c1[1] * yfac, c2[1], tol) + + @no_mysql + @no_oracle + @no_spatialite + def test_snap_to_grid(self): + "Testing GeoQuerySet.snap_to_grid()." + # Let's try and break snap_to_grid() with bad combinations of arguments. + for bad_args in ((), range(3), range(5)): + self.assertRaises(ValueError, Country.objects.snap_to_grid, *bad_args) + for bad_args in (('1.0',), (1.0, None), tuple(map(six.text_type, range(4)))): + self.assertRaises(TypeError, Country.objects.snap_to_grid, *bad_args) + + # Boundary for San Marino, courtesy of Bjorn Sandvik of thematicmapping.org + # from the world borders dataset he provides. + wkt = ('MULTIPOLYGON(((12.41580 43.95795,12.45055 43.97972,12.45389 43.98167,' + '12.46250 43.98472,12.47167 43.98694,12.49278 43.98917,' + '12.50555 43.98861,12.51000 43.98694,12.51028 43.98277,' + '12.51167 43.94333,12.51056 43.93916,12.49639 43.92333,' + '12.49500 43.91472,12.48778 43.90583,12.47444 43.89722,' + '12.46472 43.89555,12.45917 43.89611,12.41639 43.90472,' + '12.41222 43.90610,12.40782 43.91366,12.40389 43.92667,' + '12.40500 43.94833,12.40889 43.95499,12.41580 43.95795)))') + sm = Country.objects.create(name='San Marino', mpoly=fromstr(wkt)) + + # Because floating-point arithmetic isn't exact, we set a tolerance + # to pass into GEOS `equals_exact`. + tol = 0.000000001 + + # SELECT AsText(ST_SnapToGrid("geoapp_country"."mpoly", 0.1)) FROM "geoapp_country" WHERE "geoapp_country"."name" = 'San Marino'; + ref = fromstr('MULTIPOLYGON(((12.4 44,12.5 44,12.5 43.9,12.4 43.9,12.4 44)))') + self.assertTrue(ref.equals_exact(Country.objects.snap_to_grid(0.1).get(name='San Marino').snap_to_grid, tol)) + + # SELECT AsText(ST_SnapToGrid("geoapp_country"."mpoly", 0.05, 0.23)) FROM "geoapp_country" WHERE "geoapp_country"."name" = 'San Marino'; + ref = fromstr('MULTIPOLYGON(((12.4 43.93,12.45 43.93,12.5 43.93,12.45 43.93,12.4 43.93)))') + self.assertTrue(ref.equals_exact(Country.objects.snap_to_grid(0.05, 0.23).get(name='San Marino').snap_to_grid, tol)) + + # SELECT AsText(ST_SnapToGrid("geoapp_country"."mpoly", 0.5, 0.17, 0.05, 0.23)) FROM "geoapp_country" WHERE "geoapp_country"."name" = 'San Marino'; + ref = fromstr('MULTIPOLYGON(((12.4 43.87,12.45 43.87,12.45 44.1,12.5 44.1,12.5 43.87,12.45 43.87,12.4 43.87)))') + self.assertTrue(ref.equals_exact(Country.objects.snap_to_grid(0.05, 0.23, 0.5, 0.17).get(name='San Marino').snap_to_grid, tol)) + + def test_svg(self): + "Testing SVG output using GeoQuerySet.svg()." + if mysql or oracle: + self.assertRaises(NotImplementedError, City.objects.svg) + return + + self.assertRaises(TypeError, City.objects.svg, precision='foo') + # SELECT AsSVG(geoapp_city.point, 0, 8) FROM geoapp_city WHERE name = 'Pueblo'; + svg1 = 'cx="-104.609252" cy="-38.255001"' + # Even though relative, only one point so it's practically the same except for + # the 'c' letter prefix on the x,y values. + svg2 = svg1.replace('c', '') + self.assertEqual(svg1, City.objects.svg().get(name='Pueblo').svg) + self.assertEqual(svg2, City.objects.svg(relative=5).get(name='Pueblo').svg) + + @no_mysql + def test_transform(self): + "Testing the transform() GeoQuerySet method." + # 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 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_mysql + @no_oracle + def test_translate(self): + "Testing the `translate` GeoQuerySet method." + 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) + + @no_mysql + def test_unionagg(self): + "Testing the `unionagg` (aggregate union) GeoQuerySet method." + tx = Country.objects.get(name='Texas').mpoly + # Houston, Dallas -- Oracle has different order. + union1 = fromstr('MULTIPOINT(-96.801611 32.782057,-95.363151 29.763374)') + union2 = fromstr('MULTIPOINT(-96.801611 32.782057,-95.363151 29.763374)') + 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 oracle: + union = union2 + else: + union = union1 + self.assertEqual(True, union.equals_exact(u1, tol)) + self.assertEqual(True, union.equals_exact(u2, tol)) + qs = City.objects.filter(name='NotACity') + self.assertEqual(None, qs.unionagg(field_name='point')) + + def test_non_concrete_field(self): + pkfield = City._meta.get_field_by_name('id')[0] + orig_pkfield_col = pkfield.column + pkfield.column = None + try: + list(City.objects.all()) + finally: + pkfield.column = orig_pkfield_col |