Function setupMocks

packages/cli/src/utils/autoUpdate.test.ts:15–85

(opts: {
  installer: {
    kind: "npm" | "bun" | "pnpm" | "brew" | "skip";
    command: string | null;
  };
  devMode?: boolean;
  config?: ConfigShape;
  env?: Record<string, string | undefined>;
})

};

function setupMocks(opts: {
  installer: {
    kind: "npm" | "bun" | "pnpm" | "brew" | "skip";
    command: string | null;
  };
  devMode?: boolean;
  config?: ConfigShape;
  env?: Record<string, string | undefined>;
}): {
  writeSpy: ReturnType<typeof vi.fn>;
  spawnSpy: ReturnType<typeof vi.fn>;
  config: ConfigShape;
} {
  vi.resetModules();

  const config = { ...(opts.config ?? {}) };
  const writeSpy = vi.fn((next: ConfigShape) => {
    Object.assign(config, next);
    // writeConfig is given a full replacement — mirror that by pruning keys
    // that disappeared.
    for (const k of Object.keys(config)) {
      if (!(k in next)) delete (config as Record<string, unknown>)[k];
    }
  });

  vi.doMock("../telemetry/config.js", () => ({
    readConfig: () => ({ ...config }),
    writeConfig: writeSpy,
  }));
  vi.doMock("./env.js", () => ({ isDevMode: () => !!opts.devMode }));
  vi.doMock("./installerDetection.js", () => ({
    detectInstaller: () => ({
      kind: opts.installer.kind,
      installCommand: () => opts.installer.command,
      reason: "test",
    }),
  }));

  const spawnSpy = vi.fn(() => ({
    pid: 42,
    unref: () => {},
  }));
  vi.doMock("node:child_process", () => ({ spawn: spawnSpy }));
  vi.doMock("node:fs", async () => {
    const actual = await vi.importActual<typeof import("node:fs")>("node:fs");
    return {
      ...actual,
      mkdirSync: () => {},
      openSync: () => 99,
      appendFileSync: () => {},
    };
  });

  // Clear any env knobs that would otherwise bypass the scheduling policy
  // before the test runs. Critical for CI, where GitHub Actions always sets
  // CI=true and would cause every scheduling assertion to fail false-negative.
  // Tests that specifically want one of these set pass it via opts.env.
  delete process.env["CI"];