A Conversation should not add a message when it is the same as the latest one added.

Author: JaviCervera

connect/models/conversation.py

@@ -48,6 +48,16 @@ def add_message(self, message, config=None):
         """
 
         from connect.resources.base import ApiClient
-        response, _ = ApiClient(config, base_path='conversations/' + self.id + '/messages')\
-            .post(json={'text': message})
-        return ConversationMessage.deserialize(response)
+
+        if self._is_different_to_last_message(message):
+            response, _ = ApiClient(config, base_path='conversations/' + self.id + '/messages')\
+                .post(json={'text': message})
+            return ConversationMessage.deserialize(response)
+        else:
+            return None
+
+    def _is_different_to_last_message(self, msg):
+        if len(self.messages) > 0 and self.messages[-1].text == msg:
+            return False
+        else:
+            return True