close $f
    set f [open $path(test1) r]
    fconfigure $f -encoding utf-8
    set x [read $f]
    close $f
    set x
} 牦
test io-39.16 {Tcl_SetChannelOption: -encoding (shortened to "-en"), errors} -constraints {
test io-39.16 {Tcl_SetChannelOption: -encoding (shortened to "-en"), errors} -body {
    knownProfileBug
} -body {
    file delete $path(test1)
    set f [open $path(test1) w]
    fconfigure $f -en foobar
} -cleanup {
    close $f
} -returnCodes 1 -result {unknown encoding "foobar"}
test io-39.16a {Tcl_SetChannelOption: -encoding (invalid shortening to "-e"), errors} -constraints {
test io-39.16a {Tcl_SetChannelOption: -encoding (invalid shortening to "-e"), errors} -body {
    knownProfileBug
} -body {
    file delete $path(test1)
    set f [open $path(test1) w]
    fconfigure $f -e foobar
} -cleanup {
    close $f
} -returnCodes 1 -match glob -result {bad option "-e": should be one of *}
test io-39.17 {Tcl_SetChannelOption: -encoding, clearing CHANNEL_NEED_MORE_DATA} {stdio fileevent} {