The Velocity documentation mentions test coverage as a primary feature of the framework, but I'm having a hard time finding specific instructions for getting started.
Is there support for test coverage reporting in Meteor / Velocity (either directly or via a third-party package)?
You can't currently do this, but it is on the road map.
This used to work: https://github.com/xolvio/meteor-coverage but it can't with the new mirror approach. I'll update this answer when we get it working again.