Return self on TwiML append

jingming · jingming · commit c374d0bbaa0e · 2017-03-06T11:01:23.000-08:00
diff --git a/tests/unit/twiml/test_messaging_response.py b/tests/unit/twiml/test_messaging_response.py
@@ -22,6 +22,14 @@ def test_response(self):
             '<?xml version="1.0" encoding="UTF-8"?><Response><Message>Hello</Message><Redirect url="example.com" /></Response>'
         )
 
+    def test_response_chain(self):
+        r = MessagingResponse().message('Hello').redirect(url='example.com')
+
+        assert_equal(
+            self.strip(r),
+            '<?xml version="1.0" encoding="UTF-8"?><Response><Message>Hello</Message><Redirect url="example.com" /></Response>'
+        )
+
 
 class TestMessage(TwilioTest):
 
diff --git a/tests/unit/twiml/test_voice_response.py b/tests/unit/twiml/test_voice_response.py
@@ -29,6 +29,18 @@ def test_response(self):
             '<?xml version="1.0" encoding="UTF-8"?><Response><Hangup /><Leave /><Sms from="+10987654321" to="+11234567890">twilio sms</Sms></Response>'
         )
 
+    def test_response_chain(self):
+        r = VoiceResponse().hangup().leave().sms(
+            'twilio sms',
+            to='+11234567890',
+            from_='+10987654321'
+        )
+
+        assert_equal(
+            self.strip(r),
+            '<?xml version="1.0" encoding="UTF-8"?><Response><Hangup /><Leave /><Sms from="+10987654321" to="+11234567890">twilio sms</Sms></Response>'
+        )
+
 
 class TestSay(TwilioTest):
 
diff --git a/twilio/twiml/__init__.py b/twilio/twiml/__init__.py
@@ -73,4 +73,4 @@ def xml(self):
 
     def append(self, verb):
         self.verbs.append(verb)
-        return verb
+        return self
