underscore query

activity.tests.js

var _ = require('lodash'),
    ActivityController = require('../../../controllers/activity.controller'),
    FakeDatabase = [
      {userId: '123', Name: 'First Activity', Records: [{Date: new Date(2014, 1, 1)}]},
      {userId: '123', Name: 'Second Activity', Records: [{Date: new Date(2014, 2, 1)}]}];

    require('underscore-query')(_);

    ActivityController.Activity.find = function(findObject, callback){
      var activities = _.query(FakeDatabase, findObject);
      callback(null, activities);
    };