"jest": {
    "transform": {
      "^.+\\.js?$": "<rootDir>/pre-test-script.js"
    }
  },
  "devDependencies": {
    "babel-core": "^6.26.3",
    "babel-plugin-transform-class-properties": "^6.24.1",
    "babel-plugin-transform-object-rest-spread": "^6.26.0",
    "babel-preset-jest": "^22.4.3",
    "react-test-renderer": "^16.3.2"
}