readdir-and-move-with-timeout.js

var fs = require("fs")

// first, make a directory full of stuff
var dir = "test-dir-" + process.pid
fs.mkdirSync(dir, 0755)
for (var i = 0; i < 1024; i ++) {
  fs.writeFileSync(dir + "/" + i, "file " + i)
}

// now we have the test directory.
// give it a second to make sure that there are no further timing issues.
setTimeout(proceed, 1000)

function proceed () {
  // readdir and then move it not-quite immediately after.
  fs.readdir(dir, function (er, entries) {
    setTimeout(function () {
      fs.rename(dir, dir + "-renamed", function (er) {
        console.error(er || "ok")
      })
    }, 50)
  })
}