Added tests for PostGIS geography support; added `proj_version_tuple` to PostGIS…

Added tests for PostGIS geography support; added `proj_version_tuple` to PostGIS spatial backend operations; made `distapp` tests take into account different datums in PROJ.4 4.7; and added svn:ignore properties for recently-added directories. 


git-svn-id: http://code.djangoproject.com/svn/django/trunk@11971 bcc190cf-cafb-0310-a4f2-bffc1f526a37

django/contrib/gis/db/backends/postgis/operations.py

@@ -450,6 +450,19 @@ class PostGISOperations(DatabaseOperations, BaseSpatialOperations):
 
         return (version, major, minor1, minor2)
 
+    def proj_version_tuple(self):
+        """
+        Return the version of PROJ.4 used by PostGIS as a tuple of the
+        major, minor, and subminor release numbers.
+        """
+        proj_regex = re.compile(r'(\d+)\.(\d+)\.(\d+)')
+        proj_ver_str = self.postgis_proj_version()
+        m = proj_regex.search(proj_ver_str)
+        if m:
+            return tuple(map(int, [m.group(1), m.group(2), m.group(3)]))
+        else:
+            raise Exception('Could not determine PROJ.4 version from PostGIS.')
+
     def num_params(self, lookup_type, num_param):
         """
         Helper routine that returns a boolean indicating whether the number of

django/contrib/gis/tests/__init__.py

-import sys, unittest
-from django.test.simple import run_tests
-from django.utils.importlib import import_module
+import sys
+
+def run_tests(*args, **kwargs):
+    from django.test.simple import run_tests as base_run_tests
+    return base_run_tests(*args, **kwargs)
 
 def geo_suite():
     """
@@ -14,6 +16,8 @@ def geo_suite():
     from django.contrib.gis.gdal import HAS_GDAL
     from django.contrib.gis.utils import HAS_GEOIP
     from django.contrib.gis.tests.utils import postgis, mysql
+    from django.db import connection
+    from django.utils.importlib import import_module
 
     gis_tests = []
 
@@ -23,25 +27,27 @@ def geo_suite():
 
     # Tests that require use of a spatial database (e.g., creation of models)
     test_apps = ['geoapp', 'relatedapp']
+    if postgis and connection.ops.geography:
+        # Test geography support with PostGIS 1.5+.
+        test_apps.append('geogapp')
 
     # Tests that do not require setting up and tearing down a spatial database.
     test_suite_names = [
         'test_measure',
         ]
 
-    # Tests applications that require a test spatial db.
-    if not mysql:
-        test_apps.append('distapp')
-
-    # Only PostGIS using GEOS 3.1+ can support 3D so far.
-    if postgis and GEOS_PREPARE:
-        test_apps.append('geo3d')
-
     if HAS_GDAL:
         # These tests require GDAL.
+        if not mysql:
+            test_apps.append('distapp')
+
+        # Only PostGIS using GEOS 3.1+ can support 3D so far.
+        if postgis and GEOS_PREPARE:
+            test_apps.append('geo3d')
+
         test_suite_names.extend(['test_spatialrefsys', 'test_geoforms'])
         test_apps.append('layermap')
-
+        
         # Adding the GDAL tests.
         from django.contrib.gis.gdal import tests as gdal_tests
         gis_tests.append(gdal_tests.suite())

django/contrib/gis/tests/distapp/tests.py

 import os, unittest
 from decimal import Decimal
 
+from django.db import connection
 from django.db.models import Q
 from django.contrib.gis.gdal import DataSource
 from django.contrib.gis.geos import GEOSGeometry, Point, LineString
@@ -157,9 +158,28 @@ class DistanceTest(unittest.TestCase):
 
         # Got the reference distances using the raw SQL statements:
         #  SELECT ST_distance_spheroid(point, ST_GeomFromText('POINT(151.231341 -33.952685)', 4326), 'SPHEROID["WGS 84",6378137.0,298.257223563]') FROM distapp_australiacity WHERE (NOT (id = 11));
-        spheroid_distances = [60504.0628825298, 77023.948962654, 49154.8867507115, 90847.435881812, 217402.811862568, 709599.234619957, 640011.483583758, 7772.00667666425, 1047861.7859506, 1165126.55237647]
         #  SELECT ST_distance_sphere(point, ST_GeomFromText('POINT(151.231341 -33.952685)', 4326)) FROM distapp_australiacity WHERE (NOT (id = 11));  st_distance_sphere
-        sphere_distances = [60580.7612632291, 77143.7785056615, 49199.2725132184, 90804.4414289463, 217712.63666124, 709131.691061906, 639825.959074112, 7786.80274606706, 1049200.46122281, 1162619.7297006]
+        if connection.ops.postgis and connection.ops.proj_version_tuple() >= (4, 7, 0):
+            # PROJ.4 versions 4.7+ have updated datums, and thus different
+            # distance values.
+            spheroid_distances = [60504.0628957201, 77023.9489850262, 49154.8867574404,
+                                  90847.4358768573, 217402.811919332, 709599.234564757,
+                                  640011.483550888, 7772.00667991925, 1047861.78619339,
+                                  1165126.55236034]
+            sphere_distances = [60580.9693849267, 77144.0435286473, 49199.4415344719,
+                                90804.7533823494, 217713.384600405, 709134.127242793,
+                                639828.157159169, 7786.82949717788, 1049204.06569028,
+                                1162623.7238134]
+
+        else:
+            spheroid_distances = [60504.0628825298, 77023.948962654, 49154.8867507115,
+                                  90847.435881812, 217402.811862568, 709599.234619957,
+                                  640011.483583758, 7772.00667666425, 1047861.7859506,
+                                  1165126.55237647]
+            sphere_distances = [60580.7612632291, 77143.7785056615, 49199.2725132184,
+                                90804.4414289463, 217712.63666124, 709131.691061906,
+                                639825.959074112, 7786.80274606706, 1049200.46122281,
+                                1162619.7297006]
 
         # Testing with spheroid distances first.
         qs = AustraliaCity.objects.exclude(id=hillsdale.id).distance(hillsdale.point, spheroid=True)
@@ -230,15 +250,20 @@ class DistanceTest(unittest.TestCase):
         qs = SouthTexasZipcode.objects.exclude(name='77005').filter(poly__distance_lte=(z.poly, D(m=300)))
         self.assertEqual(['77002', '77025', '77401'], self.get_names(qs))
 
-    @no_spatialite
     def test05_geodetic_distance_lookups(self):
         "Testing distance lookups on geodetic coordinate systems."
         if not oracle:
             # Oracle doesn't have this limitation -- PostGIS only allows geodetic
-            # distance queries from Points to PointFields.
+            # distance queries from Points to PointFields on geometry columns (geography
+            # columns don't have that limitation).
             mp = GEOSGeometry('MULTIPOINT(0 0, 5 23)')
             self.assertRaises(ValueError, len,
                               AustraliaCity.objects.filter(point__distance_lte=(mp, D(km=100))))
+
+            # Ensured that a ValueError was raised, none of the rest of the test is
+            # support on this backend, so bail now.
+            if spatialite: return
+
             # Too many params (4 in this case) should raise a ValueError.
             self.assertRaises(ValueError, len,
                               AustraliaCity.objects.filter(point__distance_lte=('POINT(5 23)', D(km=100), 'spheroid', '4')))

django/contrib/gis/tests/geogapp/fixtures/initial_data.json

+[  
+  {
+    "pk": 1, 
+    "model": "geogapp.city", 
+    "fields": {
+      "name": "Houston", 
+      "point": "POINT (-95.363151 29.763374)"
+    }
+  }, 
+  {
+    "pk": 2, 
+    "model": "geogapp.city", 
+    "fields": {
+      "name": "Dallas", 
+      "point": "POINT (-96.801611 32.782057)"
+    }
+  }, 
+  {
+    "pk": 3, 
+    "model": "geogapp.city", 
+    "fields": {
+      "name": "Oklahoma City",
+      "point": "POINT (-97.521157 34.464642)"
+    }
+  }, 
+  {
+    "pk": 4, 
+    "model": "geogapp.city", 
+    "fields": {
+      "name": "Wellington",
+      "point": "POINT (174.783117 -41.315268)"
+    }
+  }, 
+  {
+    "pk": 5, 
+    "model": "geogapp.city", 
+    "fields": {
+      "name": "Pueblo", 
+      "point": "POINT (-104.609252 38.255001)"
+    }
+  }, 
+  {
+    "pk": 6, 
+    "model": "geogapp.city", 
+    "fields": {
+      "name": "Lawrence", 
+      "point": "POINT (-95.235060 38.971823)"
+    }
+  }, 
+  {
+    "pk": 7, 
+    "model": "geogapp.city", 
+    "fields": {
+      "name": "Chicago", 
+      "point": "POINT (-87.650175 41.850385)"
+    }
+  }, 
+  {
+    "pk": 8, 
+    "model": "geogapp.city", 
+    "fields": {
+      "name": "Victoria", 
+      "point": "POINT (-123.305196 48.462611)"
+    }
+  },
+  {
+    "pk": 1,
+    "model": "geogapp.zipcode",
+    "fields" : {
+       "code" : "77002",
+       "poly" : "SRID=4269;POLYGON ((-95.365015 29.772327, -95.362415 29.772327, -95.360915 29.771827, -95.354615 29.771827, -95.351515 29.772527, -95.350915 29.765327, -95.351015 29.762436, -95.350115 29.760328, -95.347515 29.758528, -95.352315 29.753928, -95.356415 29.756328, -95.358215 29.754028, -95.360215 29.756328, -95.363415 29.757128, -95.364014 29.75638, -95.363415 29.753928, -95.360015 29.751828, -95.361815 29.749528, -95.362715 29.750028, -95.367516 29.744128, -95.369316 29.745128, -95.373916 29.744128, -95.380116 29.738028, -95.387916 29.727929, -95.388516 29.729629, -95.387916 29.732129, -95.382916 29.737428, -95.376616 29.742228, -95.372616 29.747228, -95.378601 29.750846, -95.378616 29.752028, -95.378616 29.754428, -95.376016 29.754528, -95.374616 29.759828, -95.373616 29.761128, -95.371916 29.763928, -95.372316 29.768727, -95.365884 29.76791, -95.366015 29.767127, -95.358715 29.765327, -95.358615 29.766327, -95.359115 29.767227, -95.360215 29.767027, -95.362783 29.768267, -95.365315 29.770527, -95.365015 29.772327))"
+       }
+  },
+  {
+    "pk": 2,
+    "model": "geogapp.zipcode",
+    "fields" : {
+       "code" : "77005",
+       "poly" : "SRID=4269;POLYGON ((-95.447918 29.727275, -95.428017 29.728729, -95.421117 29.729029, -95.418617 29.727629, -95.418517 29.726429, -95.402117 29.726629, -95.402117 29.725729, -95.395316 29.725729, -95.391916 29.726229, -95.389716 29.725829, -95.396517 29.715429, -95.397517 29.715929, -95.400917 29.711429, -95.411417 29.715029, -95.418417 29.714729, -95.418317 29.70623, -95.440818 29.70593, -95.445018 29.70683, -95.446618 29.70763, -95.447418 29.71003, -95.447918 29.727275))"
+    }
+  },
+  {
+    "pk": 3,
+    "model": "geogapp.zipcode",
+    "fields" : {
+       "code" : "77025",
+       "poly" : "SRID=4269;POLYGON ((-95.418317 29.70623, -95.414717 29.706129, -95.414617 29.70533, -95.418217 29.70533, -95.419817 29.69533, -95.419484 29.694196, -95.417166 29.690901, -95.414517 29.69433, -95.413317 29.69263, -95.412617 29.68973, -95.412817 29.68753, -95.414087 29.685055, -95.419165 29.685428, -95.421617 29.68513, -95.425717 29.67983, -95.425017 29.67923, -95.424517 29.67763, -95.427418 29.67763, -95.438018 29.664631, -95.436713 29.664411, -95.440118 29.662231, -95.439218 29.661031, -95.437718 29.660131, -95.435718 29.659731, -95.431818 29.660331, -95.441418 29.656631, -95.441318 29.656331, -95.441818 29.656131, -95.441718 29.659031, -95.441118 29.661031, -95.446718 29.656431, -95.446518 29.673431, -95.446918 29.69013, -95.447418 29.71003, -95.446618 29.70763, -95.445018 29.70683, -95.440818 29.70593, -95.418317 29.70623))"
+    }
+  },
+  {
+    "pk": 4,
+    "model": "geogapp.zipcode",
+    "fields" : {
+       "code" : "77401",
+       "poly" : "SRID=4269;POLYGON ((-95.447918 29.727275, -95.447418 29.71003, -95.446918 29.69013, -95.454318 29.68893, -95.475819 29.68903, -95.475819 29.69113, -95.484419 29.69103, -95.484519 29.69903, -95.480419 29.70133, -95.480419 29.69833, -95.474119 29.69833, -95.474119 29.70453, -95.472719 29.71283, -95.468019 29.71293, -95.468219 29.720229, -95.464018 29.720229, -95.464118 29.724529, -95.463018 29.725929, -95.459818 29.726129, -95.459918 29.720329, -95.451418 29.720429, -95.451775 29.726303, -95.451318 29.727029, -95.447918 29.727275))"
+    }
+  }
+]
\ No newline at end of file

django/contrib/gis/tests/geogapp/models.py

+from django.contrib.gis.db import models
+
+class City(models.Model):
+    name = models.CharField(max_length=30)
+    point = models.PointField(geography=True)
+    objects = models.GeoManager()
+    def __unicode__(self): return self.name
+
+class Zipcode(models.Model):
+    code = models.CharField(max_length=10)
+    poly = models.PolygonField(geography=True)
+    objects = models.GeoManager()
+    def __unicode__(self): return self.name

django/contrib/gis/tests/geogapp/tests.py

+"""
+This file demonstrates two different styles of tests (one doctest and one
+unittest). These will both pass when you run "manage.py test".
+
+Replace these with more appropriate tests for your application.
+"""
+from django.contrib.gis.measure import D
+from django.test import TestCase
+from models import City, Zipcode
+
+class GeographyTest(TestCase):
+
+    def test01_fixture_load(self):
+        "Ensure geography features loaded properly."
+        self.assertEqual(8, City.objects.count())
+
+    def test02_distance_lookup(self):
+        "Testing GeoQuerySet distance lookup support on non-point geometry fields."
+        z = Zipcode.objects.get(code='77002')
+        cities = list(City.objects
+                      .filter(point__distance_lte=(z.poly, D(mi=500)))
+                      .order_by('name')
+                      .values_list('name', flat=True))
+        self.assertEqual(['Dallas', 'Houston', 'Oklahoma City'], cities)
+
+    def test03_distance_method(self):
+        "Testing GeoQuerySet.distance() support on non-point geometry fields."
+        # Can't do this with geometry fields:
+        htown = City.objects.get(name='Houston')
+        qs = Zipcode.objects.distance(htown.point)
+
+    def test04_invalid_operators_functions(self):
+        "Ensuring exceptions are raised for operators & functions invalid on geography fields."
+        # Only a subset of the geometry functions & operator are available
+        # to PostGIS geography types.  For more information, visit:
+        #  http://postgis.refractions.net/documentation/manual-1.5/ch08.html#PostGIS_GeographyFunctions
+        z = Zipcode.objects.get(code='77002')
+        # ST_Within not available.
+        self.assertRaises(ValueError, City.objects.filter(point__within=z.poly).count)
+        # `@` operator not available.
+        self.assertRaises(ValueError, City.objects.filter(point__contained=z.poly).count)

django/contrib/gis/tests/geogapp/views.py

+# Create your views here.