Allow tests to specify a page where to stop requesting
    
    Signed-off-by: Patrick Uiterwijk <puiterwijk@redhat.com>
    Reviewed-by: Randy Barlow <randy@electronsweatshop.com>
    Reviewed-by: Simo Sorce <simo@redhat.com>
    Reviewed-by: Howard Johnson <merlin@merlinthp.org>