Using Istanbul wth Meteor

.babelrc

{
  "env": {
    "meteor:coverage": {
      "plugins": ["istanbul"]
    }
  }
}

package.json

...
"babel-plugin-istanbul": "^4.1.4",
"nyc": "^11.2.1",
....

you'll need these if not others

run-coverage.sh

#!/bin/bash
export TZ=UTC
export BABEL_ENV=meteor:coverage

NODE=`meteor node -e "process.stdout.write(process.execPath)"`
METEORJS=`meteor node -e "process.stdout.write(require('path').resolve(process.execPath, '../../../tools/index.js'))"`
node_modules/.bin/nyc $NODE $METEORJS $* test --full-app --settings test.json \
  --raw-logs --once --driver-package meteortesting:mocha --port 9500