So `npm install` and `truffle compile` are fine, but with `truffle test`, the command line just gives me nothing: <img width="723" alt="Screen Shot 2019-08-11 at 3 29 31 PM" src="https://user-images.githubusercontent.com/26996912/62840286-dfd00880-bc4c-11e9-8c7b-6348b3dab801.png">