message: set EMBER_ENV=test when running tests
diff: "build": "ember build",
  "start": "ember server",
  "lint": "eslint --ext js,ts --max-warnings=0 . && tslint -p . && stylelint 'app/**/*.scss' 'lib/**/*.scss'",
  - "test": "ember test",
  - "test:cover": "COVERAGE=true ember test",
  + "test": "EMBER_ENV=test ember test",
  + "test:cover": "EMBER_ENV=test COVERAGE=true ember test",
  "test:config": "mocha node-tests/config-test.js",
  "test:translations": "mocha node-tests/translations-test.js",
  "test:blueprints": "mocha node-tests/blueprints",
  