Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for performing tests on mobile devices. In one aspect, a power distribution system includes a set of mobile devices and a computer that manages the execution of a test using the set of mobile devices. The computer can include one or more data communication ports. The system can also include one or more Universal Serial Bus (USB) hubs connected to the mobile devices using USB cables. Each mobile device can be connected to one of the one or more USB hubs. The system can also include one or more USB charging hubs connected between each data communication port of the computer and at least one of the one or more USB hubs. The system can also include a power supply connected between a power source and each of the one or more USB hubs.

Abstract: Methods and apparatus are provided for providing testing as a service. A loading computing device can receive a request to restore a testing computing device to a known software configuration. The loading computing device, after receiving the request to restore the testing computing device, can restore the testing computing device by at least: obtaining a software image storing the known software configuration, where the software image includes security-context data having security contexts associated with the plurality of software components, and where a particular security context can have an identity, a role, and a domain or type; storing at least part of the obtained software image onto the testing computing device, and after storing at least part of the obtained software image onto the testing computing device, setting security contexts for the obtained software image stored on the testing computing device using the security-context data.

Abstract: A data center rack includes a housing, at least one wireless access point (AP) mounted within the housing and wirelessly connectable to a network switch external to the housing, and at least one tray including a plurality of mobile device power connections to provide power to a plurality of mobile devices.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for performing tests on mobile devices. In one aspect, a power distribution system includes a set of mobile devices and a computer that manages the execution of a test using the set of mobile devices. The computer can include one or more data communication ports. The system can also include one or more Universal Serial Bus (USB) hubs connected to the mobile devices using USB cables. Each mobile device can be connected to one of the one or more USB hubs. The system can also include one or more USB charging hubs connected between each data communication port of the computer and at least one of the one or more USB hubs. The system can also include a power supply connected between a power source and each of the one or more USB hubs.

Abstract: Methods and apparatus are provided for providing testing as a service. A loading computing device can receive a request to restore a testing computing device to a known software configuration. The loading computing device, after receiving the request to restore the testing computing device, can restore the testing computing device by at least: obtaining a software image storing the known software configuration, where the software image includes security-context data having security contexts associated with the plurality of software components, and where a particular security context can have an identity, a role, and a domain or type; storing at least part of the obtained software image onto the testing computing device, and after storing at least part of the obtained software image onto the testing computing device, setting security contexts for the obtained software image stored on the testing computing device using the security-context data.