cannot run tests


[debug.txt](https://github.com/fullstackreact/react-yelp-clone/files/1184941/debug.txt)

I ran npm run test and got the following
![screenshot from 2017-07-29 13-13-53](https://user-images.githubusercontent.com/1652829/28744771-dd29eb1e-745f-11e7-82e4-0200bbe0413a.png)
