message: Add raf ployfill for jest
diff: }
  },
  "jest": {
  + "setupFiles": [
  + "raf/polyfill"
  + ],
  "setupTestFrameworkScriptFile": "<rootDir>/tools/jest/setup.js",
  "globals": {
  "__DEV__": true
  "postcss-loader": "^2.1.6",
  "prettier": "^1.14.0",
  "prettier-stylelint": "^0.4.2",
  + "raf": "^3.4.0",
  "react-test-renderer": "^16.4.2",
  "redux-mock-store": "^1.5.3",
  "sass-loader": "^7.1.0",
  