karma-chai-plugins missing from package.json => failing gulp test:client #2219

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Windows 10
Client Tests

I generated a fresh app with "mocha": false and I noticed that gulp test:client fails because of a missing npm package:

{ Error: Cannot find module 'karma-chai-plugins'

And indeed that file is required by the generated karma.conf.js, but is not included in the likewise generated package.json.

The template file for package.json seems to only include that package if mocha is enabled, which again I didn't select when running the generator.

So either I made some strange combination of choices :), or karma-chai-plugins should be added by the generator not just when mocha is selected?

PS. I also noticed that two require('karma-chai-plugins') seems to be added by the generator if "mocha":true. See lines 50 and 56 in templates/app/karma.conf.js. This doesn't seem right either. DS.

Here is a potentially relevant part of my .yo-rc.json:

    "jasmine": true,
      "mocha": false,
      "should": false,
      "expect": false