Take json files and load them as collections into mongodb, then deletes them from the db when the tests are run.
npm install mongo-loader --save-dev
var loader = require('mongo-loader');
loader.import(function () {
//open a connection to your mongodb and data is there
});
//when done
loader.purge(function () {
//additional clean up tasks
});
The files need to be in tests\fixtures and named one per collection. Check out the folders in this repo to see.
This module uses mongo-startand xtconf to connect so a config.json file with a "mongo-connection" in it will get you up and running.