Use an empty forbidden ip list to override default list should work.
@ -8,7 +8,7 @@ mkdir -p tmp
$PYTHON shadowsocks/local.py -c tests/aes.json &
LOCAL=$!
$PYTHON shadowsocks/server.py -c tests/aes.json &
$PYTHON shadowsocks/server.py -c tests/aes.json --forbidden-ip "" &
SERVER=$!
sleep 3