TypeError: Arguments to path.join must be strings

[joaom182]

Hello, i have the following error

TypeError: Arguments to path.join must be strings
      at Object.posix.join (path.js:467:13)
      at Context.<anonymous> (test/rank/rankServiceTest.js:19:3)

with the following code

var Q = require('q');
var async = require('async');
var expect = require('expect.js');
var load = require('express-load');
var app = require('../../app.js');
var mongoose = require('mongoose');
var basicMongoDbMock = require('../mockDb/basicMongoDbMock');

describe('Suite 01', function () {

    before(function (done) {
        this.timeout(8000);

        load('config') //  at Context.<anonymous> (test/rank/rankServiceTest.js:19:3)
            .then('enums')
            .then('models/UniqueId.js')
            .then('models')
            .then('modules/rank')
            .into(app, function () {
            });
    });

    beforeEach(function (done) {
        mongoose.connect('mongodb://localhost:27017/squid_test');

        basicMongoDbMock
            .seed(Mission, Participation, User, Image)
            .then(function () {
                done();
            });
    });

    afterEach(function (done) {
        basicMongoDbMock
            .unseed(Mission, Participation, User, Image)
            .then(function () {
                mongoose.disconnect(function () {
                    done();
                });
            });
    });

    it('Should...', function (done) {

    });

});

This is the start line of the exception

        load('config') //  at Context.<anonymous> (test/rank/rankServiceTest.js:19:3)

Have any idea of the cause for the error?

[joaom182]

I found the error! :)

Look my inspection on code:

for in is reading the prototype chain properties, not only own properties. I can create a pull request for fix this?