Description
This test is failing with Hadoop trunk after HADOOP-8855.
With HADOOP-8855, KerberosAuthenticationHandler only delegates to PseudoAuthenticationHandler if the response is not HTTP_OK (before would always delegate unless the response starts a SPNEGO NEGOTIATE.
The testcase was wrongfully assuming that if the PseudoAuthenticationHandler is configured to accept anonymous request the user.name would be avail.
This testcase tests doAs, which cannot be done by an anonymous user.