bin/network_time/test/meta/system_time_updater_test.cmx

{
    "facets": {
        "fuchsia.test": {
            "system-services": [
                "fuchsia.net.SocketProvider"
            ]
        }
    },
    "program": {
        "binary": "test/system_time_updater_test"
    },
    "sandbox": {
        "dev": [
            "class/rtc/000"
        ],
        "features": [
            "system-temp"
        ],
        "services": [
            "fuchsia.net.SocketProvider",
            "fuchsia.sys.Environment",
            "fuchsia.sys.Loader"
        ]
    }
}