supervisorMode: "external" | "launchd";

}) {

expect(writeGatewayRestartHandoffSync).toHaveBeenCalledTimes(1);

const [handoff] = writeGatewayRestartHandoffSync.mock.calls.at(0) ?? [];

const [handoff] = writeGatewayRestartHandoffSync.mock.calls[0] ?? [];

if (!handoff || typeof handoff !== "object" || Array.isArray(handoff)) {

throw new Error("expected restart handoff options object");

}