{
  "presets": ["react", "es2015"],
  "env": {
    "development": {
      "presets": ["react-hmre"]
    },
    "test": {
      "presets": ["react", "es2015"],
      "plugins": [
        [
          "module-alias",
          [
            { "src": "./browser", "expose": "browser" }
          ]
        ]
      ]
    }
  }
}