Fixed #8245 -- Added a LOADING flag to autodiscover to prevent an admin.py module with errors from raising a spurious AlreadyRegistered exception in a subsequent call to autodiscover.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@9680 bcc190cf-cafb-0310-a4f2-bffc1f526a37

tests/regressiontests/bug8245/tests.py

@@ -0,0 +1,23 @@
+from unittest import TestCase
+
+from django.contrib import admin
+
+
+class Bug8245Test(TestCase):
+    """
+    Test for bug #8245 - don't raise an AlreadyRegistered exception when using
+    autodiscover() and an admin.py module contains an error.
+    """
+
+    def test_bug_8245(self):
+        # The first time autodiscover is called, we should get our real error.
+        try:
+            admin.autodiscover()
+        except Exception, e:
+            self.failUnlessEqual(str(e), "Bad admin module")
+        else:
+            self.fail(
+                'autodiscover should have raised a "Bad admin module" error.')
+        # Calling autodiscover again should bail out early and not raise an
+        # AlreadyRegistered error.
+        admin.autodiscover()