I have seen Google Keynote 2016. This is link to Video
So I was excited about Espresso recorder.
I am not able to see the Record Espresso Test option in run menu.
Below Screen shot is from video.
This question seems to be a duplicate of this question: Espresso test recording feature in Android Studio 2.2
Short answer: It seems that this feature was, possibly unintentionally, left out of this release.
Edit: Great news, preview 3 of Android Studio 2.2 contains the Automatic Espresso test. See Android Studio Project site.