Patch #1603688: ConfigParser.SafeConfigParser now checks values that
are set for invalid interpolation sequences that would lead to errors
on reading back those values.
diff --git a/Lib/test/test_cfgparser.py b/Lib/test/test_cfgparser.py
index 9e3b495..c4df741 100644
--- a/Lib/test/test_cfgparser.py
+++ b/Lib/test/test_cfgparser.py
@@ -422,6 +422,18 @@
self.assertEqual(cf.get("section", "ok"), "xxx/%s")
self.assertEqual(cf.get("section", "not_ok"), "xxx/xxx/%s")
+ def test_set_malformatted_interpolation(self):
+ cf = self.fromstring("[sect]\n"
+ "option1=foo\n")
+
+ self.assertEqual(cf.get('sect', "option1"), "foo")
+
+ self.assertRaises(ValueError, cf.set, "sect", "option1", "%foo")
+ self.assertRaises(ValueError, cf.set, "sect", "option1", "foo%")
+ self.assertRaises(ValueError, cf.set, "sect", "option1", "f%oo")
+
+ self.assertEqual(cf.get('sect', "option1"), "foo")
+
def test_set_nonstring_types(self):
cf = self.fromstring("[sect]\n"
"option1=foo\n")