Fixed #19164 -- Fixed diffsettings command broken in fix for #18545.

Thanks Mario César for the report and draft patch.

1 files changed, 12 insertions, 0 deletions

diff --git a/tests/regressiontests/admin_scripts/tests.py b/tests/regressiontests/admin_scripts/tests.py
index 6f524bea29..a5deba7fe1 100644
--- a/tests/regressiontests/admin_scripts/tests.py
+++ b/tests/regressiontests/admin_scripts/tests.py
@@ -1603,3 +1603,15 @@ class StartProject(LiveServerTestCase, AdminScriptTestCase):
         with codecs.open(path, 'r', 'utf-8') as f:
             self.assertEqual(f.read(),
                 'Some non-ASCII text for testing ticket #18091:\nüäö €\n')
+
+
+class DiffSettings(AdminScriptTestCase):
+    """Tests for diffsettings management command."""
+    def test_basic(self):
+        "Runs without error and emits settings diff."
+        self.write_settings('settings_to_diff.py', sdict={'FOO': '"bar"'})
+        args = ['diffsettings', '--settings=settings_to_diff']
+        out, err = self.run_manage(args)
+        self.remove_settings('settings_to_diff.py')
+        self.assertNoOutput(err)
+        self.assertOutput(out, "FOO = 'bar'  ###")