close $out

    list [file size $path(kyrillic.txt)] \
	    [file size $path(utf8-fcopy.txt)] \
	    [file size $path(utf8-rp.txt)]
} {3 5 5}
test io-52.10 {TclCopyChannel & encodings} -constraints fcopy -body {
    # encoding to binary (=> implies that the
    # internal utf-8 is written)

    set in  [open $path(kyrillic.txt) r]
    set out [open $path(utf8-fcopy.txt) w]

    fconfigure $in  -encoding koi8-r -translation lf
    # -translation binary is also -encoding binary
    fconfigure $out -translation binary