fconfigure $f -encoding utf-8 -buffering none -eofchar "" -translation lf -profile strict
} -body {
    try {
        read $f
    } on error {result options} {
        set data [dict get $options -data]
    }
    lappend data $result 
} -cleanup {
    close $f
    removeFile io-75.6
} -match glob -result {A {error reading "*": illegal byte sequence}}

test io-75.7 {invalid utf-8 encoding eof handling (-profile strict)} -setup {
    set fn [makeFile {} io-75.7]