fix tests

apps/users/models.py

@@ -58,7 +58,7 @@ class UserProfile(amo.models.ModelBase):
                                     blank=True)
 
     password = models.CharField(max_length=255, default='')
-    email = models.EmailField(unique=True)
+    email = models.EmailField(unique=True, null=True)
 
     averagerating = models.CharField(max_length=255, blank=True, null=True)
     bio = PurifiedField()

apps/users/tests/test_forms.py

@@ -109,7 +109,7 @@ class TestUserDeleteForm(UserFormBase):
         # TODO XXX: Bug 593055
         #self.assertContains(r, "Profile Deleted")
         u = UserProfile.objects.get(id='4043307')
-        eq_(u.email, '')
+        eq_(u.email, None)
 
     @patch('users.models.UserProfile.is_developer')
     def test_developer_attempt(self, f):

apps/users/tests/test_models.py

@@ -23,7 +23,7 @@ class TestUserProfile(amo.test_utils.ExtraSetup, test_utils.TestCase):
         eq_(u.email, 'jbalogh@mozilla.com')
         u.anonymize()
         x = UserProfile.objects.get(id='4043307')
-        eq_(x.email, "")
+        eq_(x.email, None)
 
     def test_delete(self):
         """Setting profile to delete should delete related User."""