src/agents/bash-tools.exec.pty-fallback-failure.test.ts

import { afterEach, expect, test, vi } from "vitest";
import { listRunningSessions, resetProcessRegistryForTests } from "./bash-process-registry";
import { createExecTool } from "./bash-tools.exec";

const { supervisorSpawnMock } = vi.hoisted(() => ({
  supervisorSpawnMock: vi.fn(),
}));

vi.mock("../process/supervisor/index.js", () => ({
  getProcessSupervisor: () => ({
    spawn: (...args: unknown[]) => supervisorSpawnMock(...args),
    cancel: vi.fn(),
    cancelScope: vi.fn(),
    reconcileOrphans: vi.fn(),
    getRecord: vi.fn(),
  }),
}));

afterEach(() => {
  resetProcessRegistryForTests();
  vi.clearAllMocks();
});

test("exec cleans session state when PTY fallback spawn also fails", async () => {
  supervisorSpawnMock
    .mockRejectedValueOnce(new Error("pty spawn failed"))
    .mockRejectedValueOnce(new Error("child fallback failed"));

  const tool = createExecTool({ allowBackground: false });

  await expect(
    tool.execute("toolcall", {
      command: "echo ok",
      pty: true,
    }),
  ).rejects.toThrow("child fallback failed");

  expect(listRunningSessions()).toHaveLength(0);
});