Fixed #7521 -- Added the ability to customize ROOT_URLCONF for the duration of a TestCase. Thanks to Mark Fargas (telenieko) for his work on this patch.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@7805 bcc190cf-cafb-0310-a4f2-bffc1f526a37

django/core/urlresolvers.py

@@ -296,3 +296,8 @@ def reverse(viewname, urlconf=None, args=None, kwargs=None):
     kwargs = kwargs or {}
     return iri_to_uri(u'/' + get_resolver(urlconf).reverse(viewname, *args, **kwargs))
 
+def clear_url_caches():
+    global _resolver_cache
+    global _callable_cache
+    _resolver_cache.clear()
+    _callable_cache.clear()