const mongoose = require('mongoose'),
  User = require('../../models/user');

const mongoUrl = 'mongodb://xxxxxxxxxxx';

describe('/test', function() {
  before('connect', function() {
    return mongoose.createConnection(mongoUrl);
  });

  beforeEach(async function(done) {
    try {
      await User.remove({}); // <-- This doesn't work
      chai.request('http://localhost:3000')
        .post('/api/test')
        .send(something)
        .end((err, res) => {
          if (err) return done(err);
          done();
        });
    } catch (error) {
      done(error);
    }
  });
});

Error: Timeout of 10000ms exceeded. For async tests and hooks, ensure "done()" is called; if returning a Promise, ensure it resolves.

...
  db.close();

  return new Promise((resolve) => {
    db.on('disconnected', () => {
      console.log('***************************************Mongoose CONNECTION TERMINATED');
      resolve('user ready');
    });
  });
  ...

describe('something', () => {
  it('should do something and change it back', async () => {
    try {
      // change user password
      let re1 = await chai.request(app)
        .post('/users/edit')
        .set('authorization', `Bearer ${token}`)
        .send({
          username: 'user@domain.com',
          password: 'password6',
        });
      expect(re1.statusCode).to.equal(200);

      // change password back since before hook not working
      let re2 = await chai.request(app)
        .post('/users/edit')
        .set('authorization', `Bearer ${token}`)
        .send({
          username: 'user@domain.com',
          password: 'password6',
          passwordNew: 'password',
          passwordConfirm: 'password',
        });
      expect(re2.statusCode).to.equal(200);
    } catch (error) {
      // error stuff here
    }
  });