subtest 'cas_ticket must be empty in session' => sub {

        plan tests => 2;

        my $patron = $builder->build_object(

            { class => 'Koha::Patrons', value => { flags => 1 } } );

        my $password = 'password';

        t::lib::Mocks::mock_preference( 'RequireStrongPassword', 0 );

        $patron->set_password( { password => $password } );

        $cgi = Test::MockObject->new();

        $cgi->mock( 'cookie', sub { return; } );

        $cgi->mock(

            'param',

            sub {

                my ( $self, $param ) = @_;

                if    ( $param eq 'userid' )   { return $patron->userid; }

                elsif ( $param eq 'password' ) { return $password; }

                else                           { return; }

            }

        );

        $cgi->mock( 'request_method', sub { return 'POST' } );

        ( $userid, $cookie, $sessionID, $flags ) = C4::Auth::checkauth( $cgi, 'authrequired' );

        is( $userid, $patron->userid, 'If librarian user is used and password with POST, they should be logged in' );

        my $session = C4::Auth::get_session($sessionID);

        is( $session->param('cas_ticket'), undef );

    };