Irule for Load-Balancing Host Headers and Redirects

You should be able to significantly simplify this code:

int_host_map datagroup:

class int_host_map {
    {
        "test.company-a.com"  {  pool-company-a  }
        "test.company-b.com"  {  pool-company-b  }
        "test.company-c.com"  {  pool-company-c  }
    }
}

int_redirect_map datagroup:

class int_redirect_map {
    {
        "test.company-a.com"  { "/testurl/login.jsp" }
    }
}

iRule:

when HTTP_REQUEST {
    if { ( [HTTP::uri] equals "/" ) and ( [class match [string tolower [HTTP::host]] equals int_redirect_map] ) } {
        HTTP::redirect "http://[HTTP::host][class match -value [string tolower [HTTP::host]] equals int_redirect_map]"
    } elseif { [class match [string tolower [HTTP::host]] equals int_host_map] } {
        pool [class match -value [string tolower [HTTP::host]] equals int_host_map]
    } else {
        HTTP::respond 404 content "...data..."
    }
}

This doesn't exactly meet your HTTP-to-HTTPS requirement though, and not 100% sure I understand what you're trying to do. If you want to redirect all HTTP to HTTPS, then you'd put a very simply redirect iRule on an HTTP VIP, and then use all of the above iRule logic on the HTTPS VIP.