Issue #26873: xmlrpclib now raises ResponseError on unsupported type tags
instead of silently return incorrect result.
diff --git a/Lib/test/test_xmlrpc.py b/Lib/test/test_xmlrpc.py
index ca8d5d8..97d9e8f 100644
--- a/Lib/test/test_xmlrpc.py
+++ b/Lib/test/test_xmlrpc.py
@@ -208,6 +208,20 @@
             self.assertEqual(s, "abc \xc2\x95")
             self.assertEqual(items, [("def \xc2\x96", "ghi \xc2\x97")])
 
+    def test_loads_unsupported(self):
+        ResponseError = xmlrpclib.ResponseError
+        data = '<params><param><value><spam/></value></param></params>'
+        self.assertRaises(ResponseError, xmlrpclib.loads, data)
+        data = ('<params><param><value><array>'
+                '<value><spam/></value>'
+                '</array></value></param></params>')
+        self.assertRaises(ResponseError, xmlrpclib.loads, data)
+        data = ('<params><param><value><struct>'
+                '<member><name>a</name><value><spam/></value></member>'
+                '<member><name>b</name><value><spam/></value></member>'
+                '</struct></value></param></params>')
+        self.assertRaises(ResponseError, xmlrpclib.loads, data)
+
 
 class HelperTestCase(unittest.TestCase):
     def test_escape(self):