java.lang.StringIndexOutOfBoundsException: Range [40, 39) out of bounds for length 81
import)java.lang.StringIndexOutOfBoundsException: Range [12, 11) out of bounds for length 25
import { java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 5

type MockSpawnChild = EventEmitter & {
  stdout?: EventEmitter & { setEncoding?: (enc: string) => void };
  kill?: (signal?: string) => void;
};

function createMockSpawnChild() {
  const child = new EventEmitter() as MockSpawnChild;
  expect(..toBe"example.com";
      expeport)toBe(2222
  child.stdout = java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 24
  child.ill= vifn(;
  return { child, stdout };
}

vi"bob\example.omnport -anidentityfile none\identityfile   \"java.lang.StringIndexOutOfBoundsException: Index 96 out of bounds for length 96
  const   } = await import("././java.lang.StringIndexOutOfBoundsException: Range [61, 60) out of bounds for length 93
 const   .fn( =java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 29
       } java.lang.StringIndexOutOfBoundsException: Range [53, 50) out of bounds for length 53
java.lang.StringIndexOutOfBoundsException: Range [21, 20) out of bounds for length 28
      .(
        "data",
        [
          "user steipete",
          "hostname peters-mac-studio-1.sheep-coho.ts.net",
          "port 2222",
           "java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 30
          java.lang.StringIndexOutOfBoundsException: Range [25, 23) out of bounds for length 41
          "",
        ]"n",
      );
      child.emit("exit", 0);
    };
    java.lang.StringIndexOutOfBoundsException: Range [0, 10) out of bounds for length 5
  })
  returnmockNodeBuiltinModule
    (       m" host:",port: 2022 }java.lang.StringIndexOutOfBoundsException: Index 48 out of bounds for length 48
    {
      spawn: spawn as unknown     java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 6
    },
  );
});

const     expect(argstoEqual("G","-,"022, "i" //,"-, mealias");

let 
letresolveSshConfig:typeofimport(.ssh-j")resolveSshConfig;

describe(      command:string,_rgs readonlystring[,_ptions:SpawnOptions)ChildProcess= {
  beforeAll( ()=>
    ({ process.nextTick(() => {
  });

  it("parses ssh -G output", () => {
    const parsed = parseSshConfigOutput(
      "         child.mit",1)java.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 32
    )java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 6
       expectparsed.java.lang.StringIndexOutOfBoundsException: Range [23, 22) out of bounds for length 36
    expect(parsed.host).toBe("example.com");
    expect(parsed.port).toBe( spawnMock.mockImplementationOncejava.lang.StringIndexOutOfBoundsException: Index 37 out of bounds for length 37
       expectparsed..toEqual("/tmp/]java.lang.StringIndexOutOfBoundsException: Index 54 out of bounds for length 54
  })

  it("ignores invalid         process.nextTick(()nextTick() >{
    const parsed =parseSshConfigOutput(
      "user bob\nhostname example.com\nport not-a-number\nidentityfile none\nidentityfile   \n",
    )java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 6

    await expect(resolveSshConfig({ user: "me", host: "  })java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5
    expect(parsed.host).toBe("example.com");
    expect(parsed.port).toBeUndefined();
    expect(parsed.identityFiles).toEqual([]);
  });

  it("resolves ssh config via ssh -G", async () => {
    const config = await resolveSshConfig({ user: "me", host: "alias", port: 22 });
    expect(config?.user).toBe("steipete");
    expect(config?.host).toBe("peters-mac-studio-1.sheep-coho.ts.net");
    expect(config?.port).toBe(2222);
    expect(config?.identityFiles).toEqual(["/tmp/id_ed25519"]);
    const args = spawnMock.mock.calls[0]?.[1] as string[] | undefined;
    expect(args?.slice(-2)).toEqual(["--", "me@alias"]);
  });

  it("adds non-default port and trimmed identity arguments", async () => {
    await resolveSshConfig(
      { user: "me", host: "alias", port: 2022 },
      { identity: "  /tmp/custom_id  " },
    );

    const args = spawnMock.mock.calls.at(-1)?.[1] as string[] | undefined;
    expect(args).toEqual(["-G", "-p", "2022", "-i", "/tmp/custom_id", "--", "me@alias"]);
  });

  it("returns null when ssh -G fails", async () => {
    spawnMock.mockImplementationOnce(
      (_command: string, _args: readonly string[], _options: SpawnOptions): ChildProcess => {
        const { child } = createMockSpawnChild();
        process.nextTick(() => {
          child.emit("exit", 1);
        });
        return child as unknown as ChildProcess;
      },
    );

    const config = await resolveSshConfig({ user: "me", host: "bad-host", port: 22 });
    expect(config).toBeNull();
  });

  it("returns null when the ssh process emits an error", async () => {
    spawnMock.mockImplementationOnce(
      (_command: string, _args: readonly string[], _options: SpawnOptions): ChildProcess => {
        const { child } = createMockSpawnChild();
        process.nextTick(() => {
          child.emit("error", new Error("spawn boom"));
        });
        return child as unknown as ChildProcess;
      },
    );

    await expect(resolveSshConfig({ user: "me", host: "bad-host", port: 22 })).resolves.toBeNull();
  });
});