Can't generate acceptance tests

[CodingItWrong]

I'm attempting to set up a new Ember 3.3 project using ember-cli-mocha. It installs ember-mocha 0.13.1 by default, but it seems that I need to update ember-mocha to use new-style async testing. When I install ember-mocha 0.14.0, though, it seems like I can no longer generate acceptance tests with ember g.

Here is a branch of my mostly-empty project that exhibits the problem. The final commit in the branch is what upgrades ember-mocha to 0.14.0 and where the problem starts occurring: https://github.com/CodingItWrong/bible-reading-ember/tree/acceptance-test-troubleshooting

Before upgrade:

~/apps/bible-reading/client [acceptance-test-troubleshooting] # ember generate acceptance-test smoke
installing acceptance-test
  create tests/acceptance/smoke-test.js
~/apps/bible-reading/client [acceptance-test-troubleshooting] #

After upgrade:

~/apps/bible-reading/client [acceptance-test-troubleshooting] # ember generate acceptance-test smoke
installing acceptance-test
~/apps/bible-reading/client [acceptance-test-troubleshooting] #

This problem is also occurring in an Ember 3.1 app of mine using ember-mocha 0.14.0-beta.1

Please let me know anything I can do to help troubleshoot!

[Turbo87]

@CodingItWrong emberjs/ember.js#16865 added support for standalone ember-mocha and the new APIs in Ember itself, unfortunately it is only available in Ember 3.6 and above.