set done
} -cleanup {
    close $outChan
    close $inChan
    removeFile out
    removeFile in
} -result {40 bytes copied}

test io-53.15 {[ed29c4da21] DoRead: fblocked seen as error} -setup {
    proc driver {cmd args} {
        variable buffer
        variable index
        variable blocked
        set chan [lindex $args 0]
        switch -- $cmd {
            initialize {
                set index($chan) 0
                set buffer($chan) [encoding convertto utf-8 \
                        [string repeat a 100]]
                set blocked($chan) 1
                return {initialize finalize watch read}
            }
            finalize {
                unset index($chan) buffer($chan) blocked($chan)
                return
            }
            watch {}
            read {
                if {$blocked($chan)} {
                    set blocked($chan) [expr {!$blocked($chan)}]
                    return -code error EAGAIN
                }
                set n [lindex $args 1]
                set new [expr {$index($chan) + $n}]
                set result [string range $buffer($chan) $index($chan) $new-1]
                set index($chan) $new
                return $result
            }
        }
    }
    set c [chan create read [namespace which driver]]
    chan configure $c -encoding utf-8
    set out [makeFile {} out]
    set outChan [open $out w]
    chan configure $outChan -encoding utf-8
} -body {
    chan copy $c $outChan
} -cleanup {
    close $outChan
    close $c
    removeFile out
} -result 100

test io-54.1 {Recursive channel events} {socket fileevent} {
    # This test checks to see if file events are delivered during recursive
    # event loops when there is buffered data on the channel.

    proc accept {s a p} {
	variable as