Added assertions for an empty stdout to CoreCommandsNoOutputTests.

tests/empty_models/test_commands.py

@@ -8,11 +8,15 @@ class CoreCommandsNoOutputTests(TestCase):
     available_apps = ['empty_models']
 
     def test_sqlflush_no_tables(self):
+        out = io.StringIO()
         err = io.StringIO()
-        call_command('sqlflush', stderr=err)
+        call_command('sqlflush', stdout=out, stderr=err)
+        self.assertEqual(out.getvalue(), '')
         self.assertEqual(err.getvalue(), 'No tables found.\n')
 
     def test_sqlsequencereset_no_sequences(self):
+        out = io.StringIO()
         err = io.StringIO()
-        call_command('sqlsequencereset', 'empty_models', stderr=err)
+        call_command('sqlsequencereset', 'empty_models', stdout=out, stderr=err)
+        self.assertEqual(out.getvalue(), '')
         self.assertEqual(err.getvalue(), 'No sequences found.\n')