yeoman/yeoman

Hello all, I have started to use yeoman to generate a project and had little issues so far aside from testing. Writing tests is something I'm still learning about but the issue I'm having I just can't seem to make sense of a solution or find more relevant information online or on the docs, I wonder if someone could help me since I'm really curious to know what can be done to solve it and would be a great lesson for me.

How to test this generator properly

The generator makes one or more requests to download a few .zip files, extracts them and copies them to a directory. This can take a variable amount of time and when I write a test to assert file presence what ends up happening is that the assertions occur while the files are still being downloaded.

The code of my generator is open source and can be found here: https://github.com/csalmeida/generator-hozokit/blob/generate-hozokit/generators/app/index.js

This is the test I attempted to write (tried a few more things but all of them have similar results).

'use strict';
const path = require('path');
const assert = require('yeoman-assert');
const helpers = require('yeoman-test');

describe('generator-hozokit:app', () => {
  beforeAll(() => {
    return helpers
      .run(path.join(__dirname, '../generators/app'))
      .withPrompts({ projectName: 'Hozokit Test', installWordpress: false })
      .then(function() {
        // Checks that Hozokit was successfully extracted and present.
        assert.file(['../hozokit-test/wp-content/themes/hozokit-test', '../hozokit-test/wp-content/themes/hozokit-test/index.php', '../hozokit-test/wp-content/themes/hozokit-test/templates/base.twig']);

        // Checks that Wordpres has not been installed.
        assert.noFile(['wp-login.php', 'index.php', 'wp-includes']);

        // Checks that no zip files remain on the system.
        assert.noFile(['*.zip',]);
      });
  });
});

It also seems that the examples in the docs are written in Mocha but the generator ships with Jest?

Any help from someone experienced in this would be deeply appreciated! 🙏