Fixed #20777 -- Admin proxy model deletion regression

Added proxy_models tests by Harm Geerts <github@geertswei.nl>.

1 files changed, 5 insertions, 1 deletions

diff --git a/tests/proxy_models/models.py b/tests/proxy_models/models.py
index ffb36657e1..2e5741ab6b 100644
--- a/tests/proxy_models/models.py
+++ b/tests/proxy_models/models.py
@@ -117,9 +117,13 @@ class StateProxy(State):
 
 # Proxy models still works with filters (on related fields)
 # and select_related, even when mixed with model inheritance
+@python_2_unicode_compatible
 class BaseUser(models.Model):
     name = models.CharField(max_length=255)
 
+    def __str__(self):
+        return ':'.join((self.__class__.__name__, self.name,))
+
 class TrackerUser(BaseUser):
     status = models.CharField(max_length=50)
 
@@ -134,7 +138,7 @@ class Issue(models.Model):
     assignee = models.ForeignKey(TrackerUser)
 
     def __str__(self):
-        return ':'.join((self.__class__.__name__,self.summary,))
+        return ':'.join((self.__class__.__name__, self.summary,))
 
 class Bug(Issue):
     version = models.CharField(max_length=50)