add large file test

tests/test_large_file.sh

@@ -0,0 +1,38 @@
+#!/bin/bash
+
+DEV=lo
+PORT=8388
+DELAY=100ms
+
+PYTHON="coverage run -p -a"
+URL=http://127.0.0.1/file
+
+mkdir -p tmp
+
+type tc > /dev/null && (
+    tc qdisc add dev $DEV root handle 1: prio
+    tc qdisc add dev $DEV parent 1:3 handle 30: netem delay $DELAY
+    tc filter add dev $DEV parent 1:0 protocol ip u32 match ip dport $PORT 0xffff flowid 1:3
+    tc filter add dev $DEV parent 1:0 protocol ip u32 match ip sport $PORT 0xffff flowid 1:3
+    tc qdisc show dev lo
+)
+
+$PYTHON shadowsocks/local.py -c tests/aes.json &
+LOCAL=$!
+
+$PYTHON shadowsocks/server.py -c tests/aes.json &
+SERVER=$!
+
+sleep 3
+
+curl -o tmp/expected $URL
+curl -o tmp/result --socks5-hostname 127.0.0.1:1081 $URL
+
+kill $LOCAL
+kill $SERVER
+
+type tc > /dev/null && tc qdisc del dev lo root
+
+sleep 2
+
+diff tmp/expected tmp/result || exit 1