package.json

{
  "name": "chokidar-issue",
  "scripts": {
    "test": "node test.js",
    "test-docker": "docker run -v `pwd`:/test -w /test rollupcabal/circleci-node-v10:latest node test.js"
  },
  "dependencies": {
    "chokidar": "^3.3.1"
  }
}

test.js

const fs = require('fs');
const path = require('path');
const assert = require('assert');
const chokidar = require('chokidar');
const wait = () => new Promise(resolve => setTimeout(resolve, 500));
const file = path.resolve('test.txt');
fs.writeFileSync(file, 'Initial');

const events = [];
const watcher = chokidar
  .watch([], {ignoreInitial: true, disableGlobbing: true})
  .on('all', event => events.push(event))
  .add(file);

return wait()
  .then(() => {
    fs.unlinkSync(file);
    fs.writeFileSync(file, 'First');
  })
  .then(wait)
  .then(() => {
    console.log('Events after first update (should not be empty):', events);
    assert.strictEqual(events[0], 'change');
    events.length = 0;
    // Unwatching and adding the file again on any change is a workaround
    // watcher.unwatch(file);
    // watcher.add(file);
  })
  .then(wait)
  .then(() => {
    fs.unlinkSync(file);
    fs.writeFileSync(file, 'Second');
  })
  .then(wait)
  .then(() => {
    console.log('Events after second update (should not be empty):', events);
    watcher.close();
    if (events[0] !== 'change') {
      console.error('Did not receive expected "change" event');
      process.exit(1);
    }
  });