title: Getting react-datepicker to appear correctly when using react-testing-library
body: <p>I've been trying to figure out how to get react-testing-library working with react-datepicker.</p>
  
  <p>So far, I've been able to get the input box wrapped correctly, and can access it via the <code>getByLabelText</code> function, but I can't seem to get the date picker to appear no matter what event I fire on the textbox.</p>
  
  <p>I've been able to use the base Enzyme method for getting the date picker to appear, but it doesn't seem to want to work through react-testing-library.
  Here is a working version of the issue that I'm facing: <a href="https://codesandbox.io/s/compassionate-bose-8gpbt" rel="nofollow noreferrer">https://codesandbox.io/s/compassionate-bose-8gpbt</a></p>