Function runRunDirect

src/cli/run.test.ts:86–116

* Run run.ts directly with stdin closed to avoid hanging. * Passes empty stdin to simulate non-TTY invocation without input.

(args: string[], timeoutMs = 5000)

 * Passes empty stdin to simulate non-TTY invocation without input.
 */
async function runRunDirect(args: string[], timeoutMs = 5000): Promise<ExecResult> {
  return new Promise((resolve) => {
    const proc = spawn("bun", [RUN_PATH, ...args], {
      timeout: timeoutMs,
      env: { ...process.env, NO_COLOR: "1" },
      stdio: ["pipe", "pipe", "pipe"], // stdin, stdout, stderr
    });

    let stdout = "";
    let stderr = "";

    proc.stdout?.on("data", (data: Buffer) => {
      stdout += data.toString();
    });

    proc.stderr?.on("data", (data: Buffer) => {
      stderr += data.toString();
    });

    // Close stdin immediately to prevent hanging on stdin.read()
    proc.stdin?.end();

    proc.on("close", (code) => {
      resolve({ stdout, stderr, output: stdout + stderr, exitCode: code ?? 1 });
    });

    proc.on("error", () => {
      resolve({ stdout, stderr, output: stdout + stderr, exitCode: 1 });
    });
  });
}

describe("mux CLI", () => {
  beforeAll(() => {