Use babel-preset-env and config instead of babelrc

.babelrc

-{
-  "presets": [
-    "es2015",
-    "react"
-  ]
-}
\ No newline at end of file

package.json

@@ -22,7 +22,6 @@
     "babel-core": "^6.26.0",
     "babel-loader": "^7.1.2",
     "babel-jest": "^20.0.3",
-    "babel-preset-es2015": "^6.24.1",
     "babel-preset-env": "^1.6.0",
     "babel-preset-minify": "^0.2.0",
     "babel-preset-react": "^6.24.1",
@@ -41,7 +40,10 @@
   },
   "jest": {
     "moduleNameMapper": {
-      "\\.(css|less)$": "<rootDir>/test/setup/styleMock.js"
+      "\\.css$": "<rootDir>/test/setup/styleMock.js"
+    },
+    "transform": {
+      "\\.js$": "<rootDir>/test/config/transform.js"
     }
   },
   "scripts": {

test/config/transform.js

+module.exports = require('babel-jest').createTransformer({
+  presets: [
+    'env',
+    'react',
+    'stage-2'
+  ]
+});