Any way to get a reference to React component instantiated within Blaze?

I have a blaze html file like this:

``` html
<head>
</head>
<body>
  {{> ReactComponent}}
</body>
```

I need a reference to that instance of ReactComponent for testing purposes, I don't see any React method to query for components in document.body (React.addons.TestUtils only allows you to query for components inside other components) so I am left wondering how to get that reference.
