} {1 {wrong # args: should be "tls::unimport channel"}}
test tlsIO-14.3 {test tls::unimport} {socket} {
    list [catch {tls::unimport bogus} msg] $msg
} {1 {can not find channel named "bogus"}}
test tlsIO-14.4 {test tls::unimport} {socket} {
    # stdin can take different names as the "top" channel
    list [catch {tls::unimport stdin} msg] \
	[string match {bad channel "*": not a stacked channel} $msg]
} {1 1}
test tlsIO-14.5 {test tls::unimport} {socket} {
    set len 0
    set spurious 0
    set done 0
    proc readlittle {s} {
	global spurious done len