diff --git a/tests/admin_utils/test_logentry.py b/tests/admin_utils/test_logentry.py
index 09c09b0ea76..1cf0de349da 100644
--- a/tests/admin_utils/test_logentry.py
+++ b/tests/admin_utils/test_logentry.py
@@ -67,6 +67,11 @@ class LogEntryTests(TestCase):
         with translation.override('fr'):
             self.assertEqual(logentry.get_change_message(), 'Ajout.')
 
+    def test_logentry_change_message_not_json(self):
+        """LogEntry.change_message was a string before Django 1.10."""
+        logentry = LogEntry(change_message='non-JSON string')
+        self.assertEqual(logentry.get_change_message(), logentry.change_message)
+
     @override_settings(USE_L10N=True)
     def test_logentry_change_message_localized_datetime_input(self):
         """
@@ -177,6 +182,10 @@ class LogEntryTests(TestCase):
         log_entry.action_flag = 4
         self.assertEqual(str(log_entry), 'LogEntry Object')
 
+    def test_logentry_repr(self):
+        logentry = LogEntry.objects.first()
+        self.assertEqual(repr(logentry), str(logentry.action_time))
+
     def test_log_action(self):
         content_type_pk = ContentType.objects.get_for_model(Article).pk
         log_entry = LogEntry.objects.log_action(