add function test_voice

test.py

@@ -24,6 +24,7 @@ if conn.get('status'):
 #     #             level = 'User'
 #     #         print "[UID %d]: ID: %s, Name: %s, Level: %s, Password: %s" % ( uid, users[uid][0], users[uid][1], level, users[uid][3]  )
 
+    print zk.test_voice()
     print zk.enable_device()
     print 'Disconnecting to device ...'
     print zk.disconnect()

zk/base.py

@@ -192,6 +192,16 @@ class ZK(object):
         else:
             return cmd_response
 
+    def test_voice(self):
+        command = const.CMD_TESTVOICE
+        cmd_response = self.__send_command(command)
+        cmd_response['data'] = ''
+        if cmd_response.get('status'):
+            cmd_response['message'] = 'voice detected'
+            return cmd_response
+        else:
+            return cmd_response
+
     # def __get_size_user(self):
     #     """Checks a returned packet to see if it returned CMD_PREPARE_DATA,
     #     indicating that data packets are to be sent