Port will be undefined if condition is true

[soyuka]

Was reading your code and this seems akward: https://github.com/tadeuszwojcik/supertest-chai/blob/master/index.js#L11

    var portno = addr ? addr.port : port++;

The variable port does not exist and undefined++ is NaN

[tadeuszwojcik]

Indeed, you're of course right. Will fix it ASAP.