Function parent

test/parallel/test-child-process-stdio-big-write-end.js:41–75

()

}

function parent() {
  const spawn = require('child_process').spawn;
  const child = spawn(process.execPath, [__filename, 'child']);
  let sent = 0;

  let n = '';
  child.stdout.setEncoding('ascii');
  child.stdout.on('data', mustCallAtLeast((c) => {
    n += c;
  }));
  child.stdout.on('end', mustCall(() => {
    assert.strictEqual(+n, sent);
    debug('ok');
  }));

  // Write until the buffer fills up.
  let buf;
  do {
    bufsize += 1024;
    buf = Buffer.alloc(bufsize, '.');
    sent += bufsize;
  } while (child.stdin.write(buf));

  // Then write a bunch more times.
  for (let i = 0; i < 100; i++) {
    const buf = Buffer.alloc(bufsize, '.');
    sent += bufsize;
    child.stdin.write(buf);
  }

  // Now end, before it's all flushed.
  child.stdin.end();

  // now we wait...
}

function child() {
  let received = 0;