src/sys/test_manager/meta/memfs.cml

{
    program: {
        binary: "bin/memfs",
    },
    use: [
        { runner: "elf" },
        { protocol: "/svc/fuchsia.logger.LogSink" },
    ],
    expose: [
        {
            directory: "/svc/fuchsia.io.Directory",
            from: "self",
            as: "/memfs",
            rights: [ "rw*" ],
        },
    ],
}