Function writeAndWaitForChanges

test/parallel/test-watch-mode-files_watcher.mjs:37–45

(watcher, file)

  let counter = 0;
  function writeAndWaitForChanges(watcher, file) {
    return new Promise((resolve) => {
      const interval = setInterval(() => writeFileSync(file, `write ${counter++}`), 100);
      watcher.once('changed', () => {
        clearInterval(interval);
        resolve();
      });
    });
  }

  it('should watch changed files', async () => {
    const file = tmpdir.resolve('file1');