if (loadBalance) {
                    NtlmChallenge chal = (NtlmChallenge) ssn.getAttribute("NtlmHttpChal");
                    if (chal == null) {
                        chal = SmbSession.getChallengeForDomain();
                        ssn.setAttribute("NtlmHttpChal", chal);
                    }
                    dc = chal.dc;
                    challenge = chal.challenge;

                if (this.loadBalance) {
                    NtlmChallenge chal = (NtlmChallenge) ssn.getAttribute("NtlmHttpChal");
                    if (chal == null) {
                        chal = getChallengeForDomain(this.defaultDomain);
                        ssn.setAttribute("NtlmHttpChal", chal);
                    }
                    dc = chal.dc;
                    challenge = chal.challenge;

        when(request.getHeader("Authorization")).thenReturn(authHeader);
        when(httpSession.getAttribute("NtlmHttpAuth")).thenReturn(null);
        when(httpSession.getAttribute("NtlmHttpChal")).thenReturn(null);

        // For this test, we'll simulate that no auth header means we should challenge
        // Since we can't mock the internal transport operations easily without real network,