Tests fail in blaze simple-todos tutorial

[ras44]

Failure if I run meteor test --driver-package practicalmeteor:mocha as described in:
https://github.com/meteor/tutorials/blob/master/content/blaze/step11.md

Client browser console contains:

Uncaught TypeError: MochaRunner.runEverywhere is not a function

This might be related to this post in the forum:
https://forums.meteor.com/t/mocha-tests-not-working-after-upgrade-to-1-6/40221

Tests can be run with meteor test --driver-package meteortesting:mocha

[hwillson]

Thanks for reporting this @ras44. We've updated the React tutorial to use meteortesting:mocha but haven't had a chance to do the same for the Blaze tutorial yet. We're working on a new system to house the tutorials that will make them much easier to maintain (and accept pull requests). This will be addressed likely after that new system is live (hopefully soon-ish).

[fshafique]

Found a very simple solution at practicalmeteor's github site:
practicalmeteor/meteor-mocha#94

Essentially coffeescript needs to be updated.
@helcode suggested running: meteor update coffeescript
Works like a charm! Browser-based testing works for me now.

[MichaelJCole]

I think this is a dup of #171 with an open PR, can this be closed?