Added new srs test and various cleaning

django/contrib/gis/tests/test_spatialrefsys.py

@@ -3,6 +3,8 @@ import unittest
 from django.contrib.gis.gdal import HAS_GDAL
 from django.contrib.gis.tests.utils import (no_mysql, oracle, postgis,
     spatialite, HAS_SPATIALREFSYS, SpatialRefSys)
+from django.contrib.gis.utils import add_srs_entry
+from django.db import connection
 from django.utils import six
 
 
@@ -38,8 +40,10 @@ test_srs = ({'srid': 4326,
 class SpatialRefSysTest(unittest.TestCase):
 
     @no_mysql
-    def test01_retrieve(self):
-        "Testing retrieval of SpatialRefSys model objects."
+    def test_retrieve(self):
+        """
+        Test retrieval of SpatialRefSys model objects.
+        """
         for sd in test_srs:
             srs = SpatialRefSys.objects.get(srid=sd['srid'])
             self.assertEqual(sd['srid'], srs.srid)
@@ -59,8 +63,10 @@ class SpatialRefSysTest(unittest.TestCase):
                 six.assertRegex(self, srs.proj4text, sd['proj4_re'])
 
     @no_mysql
-    def test02_osr(self):
-        "Testing getting OSR objects from SpatialRefSys model objects."
+    def test_osr(self):
+        """
+        Test getting OSR objects from SpatialRefSys model objects.
+        """
         for sd in test_srs:
             sr = SpatialRefSys.objects.get(srid=sd['srid'])
             self.assertEqual(True, sr.spheroid.startswith(sd['spheroid']))
@@ -76,13 +82,15 @@ class SpatialRefSysTest(unittest.TestCase):
             if postgis or spatialite:
                 srs = sr.srs
                 six.assertRegex(self, srs.proj4, sd['proj4_re'])
-                # No `srtext` field in the `spatial_ref_sys` table in SpatiaLite
-                if not spatialite:
+                # No `srtext` field in the `spatial_ref_sys` table in SpatiaLite < 4
+                if not spatialite or connection.ops.spatial_version[0] >= 4:
                     self.assertTrue(srs.wkt.startswith(sd['srtext']))
 
     @no_mysql
-    def test03_ellipsoid(self):
-        "Testing the ellipsoid property."
+    def test_ellipsoid(self):
+        """
+        Test the ellipsoid property.
+        """
         for sd in test_srs:
             # Getting the ellipsoid and precision parameters.
             ellps1 = sd['ellipsoid']
@@ -95,12 +103,17 @@ class SpatialRefSysTest(unittest.TestCase):
             for i in range(3):
                 self.assertAlmostEqual(ellps1[i], ellps2[i], prec[i])
 
-
-def suite():
-    s = unittest.TestSuite()
-    s.addTest(unittest.makeSuite(SpatialRefSysTest))
-    return s
-
-
-def run(verbosity=2):
-    unittest.TextTestRunner(verbosity=verbosity).run(suite())
+    @no_mysql
+    def test_add_entry(self):
+        """
+        Test adding a new entry in the SpatialRefSys model using the
+        add_srs_entry utility.
+        """
+        add_srs_entry(900913)
+        self.assertTrue(
+            SpatialRefSys.objects.filter(srid=900913).exists()
+        )
+        srs = SpatialRefSys.objects.get(srid=900913)
+        self.assertTrue(
+            SpatialRefSys.get_spheroid(srs.wkt).startswith('SPHEROID[')
+        )

django/contrib/gis/utils/srs.py

 from django.contrib.gis.gdal import SpatialReference
+from django.db import connections, DEFAULT_DB_ALIAS
 
 
 def add_srs_entry(srs, auth_name='EPSG', auth_srid=None, ref_sys_name=None,
@@ -30,10 +31,9 @@ def add_srs_entry(srs, auth_name='EPSG', auth_srid=None, ref_sys_name=None,
 
      database:
       The name of the database connection to use; the default is the value
-      of `django.db.DEFAULT_DB_ALIAS` (at the time of this writing, it's value
+      of `django.db.DEFAULT_DB_ALIAS` (at the time of this writing, its value
       is 'default').
     """
-    from django.db import connections, DEFAULT_DB_ALIAS
     if not database:
         database = DEFAULT_DB_ALIAS
     connection = connections[database]