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

    fcopy $in $out
    close $in
    close $out

    file size $path(utf8-fcopy.txt)
} -cleanup {
    close $in
    close $out
} -returnCodes 1 -match glob -result {error writing "*":\
    invalid or incomplete multibyte or wide character}
test io-52.11 {TclCopyChannel & encodings} -setup {
    set out [open $path(utf8-fcopy.txt) w]
    fconfigure $out -encoding utf-8 -translation lf -profile strict
    puts $out АА
    close $out