From 46c7707e50400e237cbd774a31ad801669ca3905 Mon Sep 17 00:00:00 2001
From: Claude Paroz <claude@2xlibre.net>
Date: Tue, 19 Aug 2014 18:11:10 +0200
Subject: [PATCH] Replaced HAS_SPATIALREFSYS by a database feature

---
 django/contrib/gis/db/backends/base.py         |  1 +
 django/contrib/gis/db/backends/mysql/base.py   |  2 +-
 django/contrib/gis/tests/test_spatialrefsys.py | 13 +++++--------
 django/contrib/gis/tests/utils.py              |  2 --
 django/test/testcases.py                       |  4 ++--
 5 files changed, 9 insertions(+), 13 deletions(-)

diff --git a/django/contrib/gis/db/backends/base.py b/django/contrib/gis/db/backends/base.py
index 663179e6e6..e281ba073e 100644
--- a/django/contrib/gis/db/backends/base.py
+++ b/django/contrib/gis/db/backends/base.py
@@ -11,6 +11,7 @@ from django.utils.encoding import python_2_unicode_compatible
 
 class BaseSpatialFeatures(object):
     gis_enabled = True
+    has_spatialrefsys_table = True
 
 
 class BaseSpatialOperations(object):
diff --git a/django/contrib/gis/db/backends/mysql/base.py b/django/contrib/gis/db/backends/mysql/base.py
index 38632f1401..077a8a1dc1 100644
--- a/django/contrib/gis/db/backends/mysql/base.py
+++ b/django/contrib/gis/db/backends/mysql/base.py
@@ -9,7 +9,7 @@ from django.contrib.gis.db.backends.mysql.operations import MySQLOperations
 
 
 class DatabaseFeatures(BaseSpatialFeatures, MySQLDatabaseFeatures):
-    pass
+    has_spatialrefsys_table = False
 
 
 class DatabaseWrapper(MySQLDatabaseWrapper):
diff --git a/django/contrib/gis/tests/test_spatialrefsys.py b/django/contrib/gis/tests/test_spatialrefsys.py
index 968942ec07..1209e940f0 100644
--- a/django/contrib/gis/tests/test_spatialrefsys.py
+++ b/django/contrib/gis/tests/test_spatialrefsys.py
@@ -1,9 +1,10 @@
 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.tests.utils import (oracle, postgis, spatialite,
+    SpatialRefSys)
 from django.db import connection
+from django.test import skipUnlessDBFeature
 from django.utils import six
 
 
@@ -34,11 +35,10 @@ test_srs = ({'srid': 4326,
             )
 
 
-@unittest.skipUnless(HAS_GDAL and HAS_SPATIALREFSYS,
-    "SpatialRefSysTest needs gdal support and a spatial database")
+@unittest.skipUnless(HAS_GDAL, "SpatialRefSysTest needs gdal support")
+@skipUnlessDBFeature("has_spatialrefsys_table")
 class SpatialRefSysTest(unittest.TestCase):
 
-    @no_mysql
     def test_retrieve(self):
         """
         Test retrieval of SpatialRefSys model objects.
@@ -61,7 +61,6 @@ class SpatialRefSysTest(unittest.TestCase):
                 self.assertTrue(srs.wkt.startswith(sd['srtext']))
                 six.assertRegex(self, srs.proj4text, sd['proj4_re'])
 
-    @no_mysql
     def test_osr(self):
         """
         Test getting OSR objects from SpatialRefSys model objects.
@@ -85,7 +84,6 @@ class SpatialRefSysTest(unittest.TestCase):
                 if not spatialite or connection.ops.spatial_version[0] >= 4:
                     self.assertTrue(srs.wkt.startswith(sd['srtext']))
 
-    @no_mysql
     def test_ellipsoid(self):
         """
         Test the ellipsoid property.
@@ -102,7 +100,6 @@ class SpatialRefSysTest(unittest.TestCase):
             for i in range(3):
                 self.assertAlmostEqual(ellps1[i], ellps2[i], prec[i])
 
-    @no_mysql
     def test_add_entry(self):
         """
         Test adding a new entry in the SpatialRefSys model using the
diff --git a/django/contrib/gis/tests/utils.py b/django/contrib/gis/tests/utils.py
index 72dd669872..29e17e7113 100644
--- a/django/contrib/gis/tests/utils.py
+++ b/django/contrib/gis/tests/utils.py
@@ -39,7 +39,6 @@ postgis = _default_db == 'postgis'
 mysql = _default_db == 'mysql'
 spatialite = _default_db == 'spatialite'
 
-HAS_SPATIALREFSYS = True
 if oracle and 'gis' in settings.DATABASES[DEFAULT_DB_ALIAS]['ENGINE']:
     from django.contrib.gis.db.backends.oracle.models import OracleSpatialRefSys as SpatialRefSys
 elif postgis:
@@ -47,5 +46,4 @@ elif postgis:
 elif spatialite:
     from django.contrib.gis.db.backends.spatialite.models import SpatialiteSpatialRefSys as SpatialRefSys
 else:
-    HAS_SPATIALREFSYS = False
     SpatialRefSys = None
diff --git a/django/test/testcases.py b/django/test/testcases.py
index e982706784..260d7c8af7 100644
--- a/django/test/testcases.py
+++ b/django/test/testcases.py
@@ -980,7 +980,7 @@ def skipIfDBFeature(feature):
     """
     Skip a test if a database has the named feature
     """
-    return _deferredSkip(lambda: getattr(connection.features, feature),
+    return _deferredSkip(lambda: getattr(connection.features, feature, False),
                          "Database has feature %s" % feature)
 
 
@@ -988,7 +988,7 @@ def skipUnlessDBFeature(feature):
     """
     Skip a test unless a database has the named feature
     """
-    return _deferredSkip(lambda: not getattr(connection.features, feature),
+    return _deferredSkip(lambda: not getattr(connection.features, feature, False),
                          "Database doesn't support feature %s" % feature)