node/test/parallel/test-child-process-spawn-controller.js

'use strict';

const common = require('../common');
const assert = require('assert');
const cp = require('child_process');

{
  // Verify that passing an AbortSignal works
  const controller = new AbortController();
  const { signal } = controller;

  const echo = cp.spawn('echo', ['fun'], {
    encoding: 'utf8',
    shell: true,
    signal
  });

  echo.on('error', common.mustCall((e) => {
    assert.strictEqual(e.name, 'AbortError');
  }));

  controller.abort();
}

{
  // Verify that passing an already-aborted signal works.
  const controller = new AbortController();
  const { signal } = controller;

  controller.abort();

  const echo = cp.spawn('echo', ['fun'], {
    encoding: 'utf8',
    shell: true,
    signal
  });

  echo.on('error', common.mustCall((e) => {
    assert.strictEqual(e.name, 'AbortError');
  }));
}