const pids = findGatewayPidsOnPortSync(18789);

expect(pids).toEqual([gatewayPidA, gatewayPidB]);

expect(spawnSyncMock).toHaveBeenCalledWith(

"/usr/sbin/lsof",

["-nP", "-iTCP:18789", "-sTCP:LISTEN", "-Fpc"],

expect.objectContaining({ encoding: "utf8", timeout: 2000 }),

const [command, args, options] =

spawnSyncMock.mock.calls.find(

([spawnCommand, spawnArgs]) =>

spawnCommand === "/usr/sbin/lsof" &&

Array.isArray(spawnArgs) &&

spawnArgs.includes("-iTCP:18789"),

) ?? [];

expect(command).toBe("/usr/sbin/lsof");

expect(args).toEqual(["-nP", "-iTCP:18789", "-sTCP:LISTEN", "-Fpc"]);

expect((options as { encoding?: unknown; timeout?: unknown } | undefined)?.encoding).toBe(

"utf8",

);

expect((options as { encoding?: unknown; timeout?: unknown } | undefined)?.timeout).toBe(2000);

});

it("returns empty when lsof fails", () => {

expect(killed).toEqual([stalePid]);

expect(resolveGatewayPortMock).not.toHaveBeenCalled();

expect(spawnSyncMock).toHaveBeenCalledWith(

"/usr/sbin/lsof",

["-nP", "-iTCP:19999", "-sTCP:LISTEN", "-Fpc"],

expect.objectContaining({ encoding: "utf8", timeout: 2000 }),

expect(spawnSyncMock).toHaveBeenCalledTimes(2);

const [command, args, options] = spawnSyncMock.mock.calls[0] ?? [];

expect(command).toBe("/usr/sbin/lsof");

expect(args).toEqual(["-nP", "-iTCP:19999", "-sTCP:LISTEN", "-Fpc"]);

expect((options as { encoding?: unknown; timeout?: unknown } | undefined)?.encoding).toBe(

"utf8",

);

expect((options as { encoding?: unknown; timeout?: unknown } | undefined)?.timeout).toBe(2000);

expect(killSpy).toHaveBeenCalledWith(stalePid, "SIGTERM");

expect(killSpy).toHaveBeenCalledWith(stalePid, "SIGKILL");

});