Fixed #30595 -- Added error message when no objects found to sql* management commands.

tests/empty_models/test_commands.py

@@ -0,0 +1,18 @@
+import io
+
+from django.core.management import call_command
+from django.test import TestCase
+
+
+class CoreCommandsNoOutputTests(TestCase):
+    available_apps = ['empty_models']
+
+    def test_sqlflush_no_tables(self):
+        err = io.StringIO()
+        call_command('sqlflush', stderr=err)
+        self.assertEqual(err.getvalue(), 'No tables found.\n')
+
+    def test_sqlsequencereset_no_sequences(self):
+        err = io.StringIO()
+        call_command('sqlsequencereset', 'empty_models', stderr=err)
+        self.assertEqual(err.getvalue(), 'No sequences found.\n')