test function that call a function javascrip
var _ = require('lodash'); var Foo = module.exports = function (config) { this.config = _.merge({ role: 'user', x: '123', y: '321' }, config); this.config.role = validateRole(this.config.role); }; var validateRole = function (role) { var roles = [ 'user', 'editor', 'admin' ]; if (_.contains(roles, role)) { return role; } else { return 'user' } };