diff --git a/Makefile b/Makefile
index 77cdfdef1..d9a44f484 100644
--- a/Makefile
+++ b/Makefile
@@ -14,11 +14,11 @@ dep_mochiweb   = git https://github.com/emqtt/mochiweb.git
 ERLC_OPTS += +'{parse_transform, lager_transform}'
 
 EUNIT_OPTS = verbose
-EUNIT_ERL_OPTS = -args_file rel/vm.args -config rel/sys.config
+EUNIT_ERL_OPTS = -args_file test_data/ct_vm.args -config test_data/ct_sys.config
 
 CT_SUITES = emqttd emqttd_access emqttd_backend emqttd_lib emqttd_mod emqttd_net \
 			emqttd_mqueue emqttd_protocol emqttd_topic emqttd_trie
-CT_OPTS = -cover test/ct.cover.spec -erl_args -name emqttd_ct@127.0.0.1 -config rel/sys.config
+CT_OPTS = -cover test/ct.cover.spec -erl_args -name emqttd_ct@127.0.0.1 -config test_data/ct_sys.config
 
 COVER = true
 
diff --git a/test_data/ct_emqttd.conf b/test_data/ct_emqttd.conf
new file mode 100644
index 000000000..562bd908f
--- /dev/null
+++ b/test_data/ct_emqttd.conf
@@ -0,0 +1,266 @@
+%%===================================================================
+%%
+%% Config file for emqttd 2.0
+%%
+%% Erlang Term Syntax:
+%%
+%% {}: Tuple, usually {Key, Value}
+%% []: List, seperated by comma
+%% %%: Comment
+%%
+%%===================================================================
+
+%%--------------------------------------------------------------------
+%% MQTT Protocol
+%%--------------------------------------------------------------------
+
+%% Max ClientId Length Allowed.
+{mqtt_max_clientid_len, 512}.
+
+%% Max Packet Size Allowed, 64K by default.
+{mqtt_max_packet_size, 65536}.
+
+%% Client Idle Timeout.
+{mqtt_client_idle_timeout, 30}. % Second
+
+%%--------------------------------------------------------------------
+%% Authentication
+%%--------------------------------------------------------------------
+
+%% Anonymous: Allow all
+{auth, anonymous, []}.
+
+%% Authentication with username, password
+{auth, username, []}.
+
+%% Authentication with clientId
+{auth, clientid, [{password, no}]}.
+
+%%--------------------------------------------------------------------
+%% ACL
+%%--------------------------------------------------------------------
+
+{acl, anonymous, []}.
+
+{acl, internal, [{nomatch, allow}]}.
+
+%% Cache ACL result for PUBLISH
+{cache_acl, true}.
+
+%%--------------------------------------------------------------------
+%% Broker
+%%--------------------------------------------------------------------
+
+%% System interval of publishing broker $SYS messages
+{broker_sys_interval, 60}.
+
+%%--------------------------------------------------------------------
+%% Retained message
+%%--------------------------------------------------------------------
+
+%% Expired after seconds, never expired if 0
+{retained_expired_after, 0}.
+
+%% Max number of retained messages
+{retained_max_message_num, 100000}.
+
+%% Max Payload Size of retained message
+{retained_max_playload_size, 65536}.
+
+%%--------------------------------------------------------------------
+%% Session
+%%--------------------------------------------------------------------
+
+%% Max number of QoS 1 and 2 messages that can be “inflight” at one time.
+%% 0 means no limit
+{session_max_inflight, 100}.
+
+%% Retry interval for redelivering QoS1/2 messages.
+{session_unack_retry_interval, 60}.
+
+%% Awaiting PUBREL Timeout
+{session_await_rel_timeout, 20}.
+
+%% Max Packets that Awaiting PUBREL, 0 means no limit
+{session_max_awaiting_rel, 0}.
+
+%% Statistics Collection Interval(seconds)
+{session_collect_interval, 0}.
+
+%% Expired after 2 day (unit: minute)
+{session_expired_after, 2880}.
+
+%%--------------------------------------------------------------------
+%% Queue
+%%--------------------------------------------------------------------
+
+%% Type: simple | priority
+{queue_type, simple}.
+
+%% Topic Priority: 0~255, Default is 0
+%% {queue_priority, [{"topic/1", 10}, {"topic/2", 8}]}.
+
+%% Max queue length. Enqueued messages when persistent client disconnected,
+%% or inflight window is full.
+{queue_max_length, infinity}.
+
+%% Low-water mark of queued messages
+{queue_low_watermark, 0.2}.
+
+%% High-water mark of queued messages
+{queue_high_watermark, 0.6}.
+
+%% Queue Qos0 messages?
+{queue_qos0, true}.
+
+%%--------------------------------------------------------------------
+%% Zone
+%%--------------------------------------------------------------------
+
+{zone, admin, []}.
+
+%%--------------------------------------------------------------------
+%% Listener
+%%--------------------------------------------------------------------
+
+%% Plain MQTT
+{listener, mqtt, 1883, [
+    %% Size of acceptor pool
+    {acceptors, 16},
+
+    %% Maximum number of concurrent clients
+    {max_clients, 512},
+
+    %% Mount point prefix
+    %% {mount_point, "prefix/"},
+
+    %% Socket Access Control
+    {access, [{allow, all}]},
+
+    %% Connection Options
+    {connopts, [
+        %% Rate Limit. Format is 'burst, rate', Unit is KB/Sec
+        %% {rate_limit, "100,10"} %% 100K burst, 10K rate
+    ]},
+
+    %% Socket Options
+    {sockopts, [
+        %Set buffer if hight thoughtput
+        %{recbuf, 4096},
+        %{sndbuf, 4096},
+        %{buffer, 4096},
+        %{nodelay, true},
+        {backlog, 1024}
+    ]}
+]}.
+
+%% MQTT/SSL
+{listener, mqtts, 8883, [
+    %% Size of acceptor pool
+    {acceptors, 4},
+
+    %% Maximum number of concurrent clients
+    {max_clients, 512},
+
+    %% Socket Access Control
+    {access, [{allow, all}]},
+
+    %% SSL certificate and key files
+    {ssl, [{certfile, "etc/ssl/ssl.crt"},
+           {keyfile,  "etc/ssl/ssl.key"}]},
+
+    %% Socket Options
+    {sockopts, [
+        {backlog, 1024}
+        %{buffer, 4096},
+    ]}
+]}.
+
+%% HTTP and WebSocket Listener
+{listener, http, 8083, [
+    %% Size of acceptor pool
+    {acceptors, 4},
+
+    %% Maximum number of concurrent clients
+    {max_clients, 64},
+
+    %% Socket Access Control
+    {access, [{allow, all}]},
+
+    %% Socket Options
+    {sockopts, [
+        {backlog, 1024}
+        %{buffer, 4096},
+    ]}
+]}.
+
+%%--------------------------------------------------------------------
+%% PubSub
+%%--------------------------------------------------------------------
+
+%% PubSub and Router. Default should be scheduler numbers.
+{pubsub_pool_size, 8}.
+
+%%--------------------------------------------------------------------
+%% Routing
+%%--------------------------------------------------------------------
+
+%% Route aging time(seconds)
+{routing_age, 5}.
+
+%%--------------------------------------------------------------------
+%% Bridge
+%%--------------------------------------------------------------------
+
+%% TODO: Bridge Queue Size
+{bridge_max_queue_len, 10000}.
+
+%% Ping Interval of bridge node
+{bridge_ping_down_interval, 1}. % second
+
+%%-------------------------------------------------------------------
+%% Plugins
+%%-------------------------------------------------------------------
+
+%% Dir of plugins' config
+{plugins_etc_dir, "etc/plugins/"}.
+
+%% File to store loaded plugin names.
+{plugins_loaded_file, "data/loaded_plugins"}.
+
+%%--------------------------------------------------------------------
+%% Modules
+%%--------------------------------------------------------------------
+
+%% Client presence management module. Publish presence messages when 
+%% client connected or disconnected.
+{module, presence, [{qos, 0}]}.
+
+%% Subscribe topics automatically when client connected
+{module, subscription, [{"$queue/clients/$c", 1}, backend]}.
+
+%% [Rewrite](https://github.com/emqtt/emqttd/wiki/Rewrite)
+{module, rewrite, []}.
+
+%%-------------------------------------------------------------------
+%% Erlang System Monitor
+%%-------------------------------------------------------------------
+
+%% Long GC, don't monitor in production mode for:
+%% https://github.com/erlang/otp/blob/feb45017da36be78d4c5784d758ede619fa7bfd3/erts/emulator/beam/erl_gc.c#L421
+
+{sysmon_long_gc, false}.
+
+%% Long Schedule(ms)
+{sysmon_long_schedule, 240}.
+
+%% 8M words. 32MB on 32-bit VM, 64MB on 64-bit VM.
+%% 8 * 1024 * 1024
+{sysmon_large_heap, 8388608}.
+
+%% Busy Port
+{sysmon_busy_port, false}.
+
+%% Busy Dist Port
+{sysmon_busy_dist_port, true}.
+
diff --git a/test_data/ct_sys.config b/test_data/ct_sys.config
new file mode 100644
index 000000000..bce791354
--- /dev/null
+++ b/test_data/ct_sys.config
@@ -0,0 +1,6 @@
+% -*- mode: erlang;erlang-indent-level: 4;indent-tabs-mode: nil -*-
+%% ex: ft=erlang ts=4 sw=4 et
+[
+ {kernel, [{start_timer, true}, {start_pg2, true}]},
+ {emqttd, [{conf, "test_data/emqttd_ct.conf"}]}
+].
diff --git a/test_data/ct_vm.args b/test_data/ct_vm.args
new file mode 100644
index 000000000..e05e373a4
--- /dev/null
+++ b/test_data/ct_vm.args
@@ -0,0 +1,61 @@
+##-------------------------------------------------------------------------
+## Name of the emqttd node: Name@Host
+##
+## NOTICE: The Host should be IP address or the fully qualified host name.
+##         The short hostname cannot work!
+##-------------------------------------------------------------------------
+
+-name emqttd_ct@127.0.0.1
+# or
+#-name emqttd@localhost.
+
+## Cookie for distributed erlang
+-setcookie emqttdsecretcookie
+
+##-------------------------------------------------------------------------
+## Flags
+##-------------------------------------------------------------------------
+
+## Heartbeat management; auto-restarts VM if it dies or becomes unresponsive
+## (Disabled by default..use with caution!)
+##-heart
+-smp true
+
+## Enable kernel poll and a few async threads
++K true
+
+## 12 threads/core.
++A 24
+
+## max process numbers
+#+P 8192
+
+## Sets the maximum number of simultaneously existing ports for this system
+#+Q 8192
+
+## max atom number
+## +t
+
+## Set the distribution buffer busy limit (dist_buf_busy_limit) in kilobytes.
+## Valid range is 1-2097151. Default is 1024.
+## +zdbbl 8192
+
+## Set scheduler bind type.
+## +sbt db
+
+##-------------------------------------------------------------------------
+## Env
+##-------------------------------------------------------------------------
+
+## Increase number of concurrent ports/sockets, deprecated in R17
+#-env ERL_MAX_PORTS 8192
+
+#-env ERTS_MAX_PORTS 8192
+
+## Mnesia and SSL will create temporary ets tables.
+-env ERL_MAX_ETS_TABLES 1024
+
+## Tweak GC to run more often
+-env ERL_FULLSWEEP_AFTER 1000
+
+-env ERL_CRASH_DUMP log/emqttd_crash.dump