wraps require to enable the injection of mocks

nodejs-loader.js

/*
module loader

primary purpose is to provide a way of
injecting mocks into nodeJS modules

secondary purpose is to eliminate relative
paths in require statements
*/

var l = {},
    _ = require('lodash'),
    path = require('path');

l.specs = {};
l.origin = '';


l.init = function (origin, specs) {
    // init(string/origin, object/options)
    // origin: provides root folder of project
    // specs: provides mock objects/path mapping
    l.origin = origin;
    if (specs) {
        l.specs = specs;
    }
};

l.load = function (id) {
    // load(string/id)
    // tries to locate id in mocks object
    if (l.specs.hasOwnProperty(id)) {
        if (_.isObject(l.specs[id])) {
            return l.specs[id];
        }
        if (_.isString(l.specs[id])) {
            return require(l.origin + l.specs[id]);
        }
        // misconfigured
        console.log('non string/object located in l.specs');
    } else {
        if(id !== 'apiService') {
            return require(id);
        }
    }
};

l.reset = function () {
    l.specs = {};
    l.origin = '';
};

module.exports = l;