I am developing integration tests and have problems with negative case testing - my test app never exits.

Steps to Reproduce:

• Call connect to vhost, for which user does not have permissions
• See that err callback is called
• See that NodeJS app just hangs, never exits.

I found that reason is that the following block is only called on timeout:

        sock.end();
        sock.destroy();

And it is never called on other connection errors.