A testing system and method for a security system is disclosed. In one example, the testing system includes a mobile computing device carried by an operator such as a technician and a configuration server, the configuration server communicating with one or more of an intrusion detection subsystem, video surveillance subsystem, and/or access control subsystem and providing testing information to the mobile device. In one embodiment, the testing system provides configuration information to security devices within the subsystems, where the configuration information includes associations between the devices of the subsystems for executing testing upon the devices in the associations.