unset LC_ALL
unset LC_MESSAGES
unset LANG
unset LANGUAGE

[ "$ECHO" ] || . testing.sh

hello_gz() {
    # Gzipped "HELLO\n"
    #_________________________ vvv vvv vvv vvv - mtime
    $ECHO -ne "\x1f\x8b\x08\x00\x85\x1d\xef\x45\x02\x03\xf3\x70\xf5\xf1\xf1\xe7"
    $ECHO -ne "\x02\x00\x6e\xd7\xac\xfd\x06\x00\x00\x00"
}

hello_bz2() {
    # Bzipped "HELLO\n"
    $ECHO -ne "\x42\x5a\x68\x39\x31\x41\x59\x26\x53\x59\x5b\xb8\xe8\xa3\x00\x00"
    $ECHO -ne "\x01\x44\x00\x00\x10\x02\x44\xa0\x00\x30\xcd\x00\xc3\x46\x29\x97"
    $ECHO -ne "\x17\x72\x45\x38\x50\x90\x5b\xb8\xe8\xa3"
}

prep() {
    rm -f t*
    hello_$ext >t1.$ext
    hello_$ext >t2.$ext
}

check() {
    local xtrace

    xtrace=$(set -o | sed -rne 's/xtrace[[:space:]]+([^[:space:]]+)/\1/p')
    [ "$xtrace" = off ] || set +x

    eval "$2" >t_actual 2>&1 || {
	echo "$1: FAIL (eval)"
    }

    [ "$xtrace" = off ] || set -x

    if $ECHO -ne "$expected" | cmp - t_actual; then
	echo "$1: PASS"
    else
	echo "$1: FAIL"
    fi
}