title: How to setup jest with node_modules that use es6
body: <p>I have a very simple test:</p>
  
  <pre><code>describe('sanity', () =&gt; {
    it('sanity', () =&gt; {
      expect(true).toBeTruthy()
    })
  })
  </code></pre>
  
  <p>And I'm receiving the following error:</p>
  
  <pre><code> FAIL  spec/javascript/sanity_test.js
    ● Test suite failed to run
  
      Jest encountered an unexpected token
  
      This usually means that you are trying to import a file which Jest cannot parse, e.g. it's not plain JavaScript.
  
      By default, if Jest sees a Babel config, it will use that to transform your files, ignoring "node_modules".
  
      Here's what you can do:
       • To have some of your "node_modules" files transformed, you can specify a custom "transformIgnorePatterns" in your config.
       • If you need a custom transformation specify a "transform" option in your config.
       • If you simply want to mock your non-JS modules (e.g. binary assets) you can stub them out with the "moduleNameMapper" config option.
  
      You'll find more details and examples of these config options in the docs:
      https://jestjs.io/docs/en/configuration.html
  
      Details:
  
      /Users/piousbox/projects/ruby/&lt;project&gt;/node_modules/@atlaskit/tooltip/index.js:1
      ({"Object.&lt;anonymous&gt;":function(module,exports,require,__dirname,__filename,global,jest){export { default } from './components/Tooltip';
                                                                                               ^^^^^^
  
      SyntaxError: Unexpected token export
  
        3 | import update from "immutability-helper";
        4 | import {components} from "react-select-2";
      &gt; 5 | import Tooltip from "@atlaskit/tooltip";
          | ^
        6 | const isEqual = require("react-fast-compare");
        7 | import _, {replace} from "lodash";
        8 | import { get } from "$shared/request";
  
        at ScriptTransformer._transformAndBuildScript (node_modules/@jest/transform/build/ScriptTransformer.js:537:17)
        at ScriptTransformer.transform (node_modules/@jest/transform/build/ScriptTransformer.js:579:25)
        at Object.&lt;anonymous&gt; (app/javascript/customer2/components/fob/fob_utils.js:5:1)
  
  Test Suites: 1 failed, 1 total
  Tests:       0 total
  Snapshots:   0 total
  Time:        1.593s
  </code></pre>
  
  <p>I have this .babelrc:</p>
  
  <pre><code>{
    "presets": ["@babel/react", "@babel/env"]
  }
  </code></pre>
  
  <p>How do I make the trivial test pass?</p>