title: How do you simulate an keyDown enter event (or others) in Enzyme?
body: <p>I'm trying to simulate a <code>keyDown</code> event, specifically for Enter, <code>keyCode: 13</code>. I've tried a number of different ways of doing this, but none of them are working. I've also looked online and it seems like this feature is either buggy or not working in the current version of Enzyme. Does anyone know definitively if this feature works, and if so, what is the proper syntax for simulating an enter, or other types of key events? Thanks!</p>
  
  <p>This is what I have currently, and it's not working:</p>
  
  <pre><code>const input = wrapper.find('input');
  input.simulate('keyDown', {keyCode: 13});
  </code></pre>
  
  <p>My current Enzyme version is 2.4.1</p>