diff --git a/Makefile b/Makefile
index 80a3dafbd..ce0a282fa 100644
--- a/Makefile
+++ b/Makefile
@@ -35,10 +35,10 @@ EUNIT_OPTS = verbose
 # CT_SUITES = emqx_stats
 ## emqx_trie emqx_router emqx_frame emqx_mqtt_compat
 
-CT_SUITES = emqx emqx_access emqx_base62 emqx_broker emqx_client emqx_cm emqx_frame emqx_guid emqx_inflight \
+CT_SUITES = emqx emqx_session emqx_access emqx_base62 emqx_broker emqx_client emqx_cm emqx_frame emqx_guid emqx_inflight \
 			emqx_json emqx_keepalive emqx_lib emqx_metrics emqx_misc emqx_mod emqx_mqtt_caps \
 			emqx_mqtt_compat emqx_mqtt_properties emqx_mqueue emqx_net emqx_pqueue emqx_router emqx_sm \
-			emqx_stats emqx_tables emqx_time emqx_topic emqx_trie emqx_vm emqx_zone
+			emqx_stats emqx_tables emqx_time emqx_topic emqx_trie emqx_vm emqx_zone emqx_mountpoint
 
 CT_OPTS = -cover test/ct.cover.spec -erl_args -name emqxct@127.0.0.1
 
diff --git a/test/emqx_mock_client.erl b/test/emqx_mock_client.erl
index 164b6d4ea..0536b8bac 100644
--- a/test/emqx_mock_client.erl
+++ b/test/emqx_mock_client.erl
@@ -16,13 +16,15 @@
 
 -behaviour(gen_server).
 
--export([start_link/1, open_session/3, close_session/2, stop/1]).
+-export([start_link/1, open_session/3, close_session/2, stop/1, get_last_message/0]).
 
 -export([init/1, handle_call/3, handle_cast/2, handle_info/2,
          terminate/2, code_change/3]).
 
 -record(state, {clean_start, client_id, client_pid}).
 
+-define(TAB, messages).
+
 start_link(ClientId) ->
     gen_server:start_link(?MODULE, [ClientId], []).
 
@@ -35,13 +37,25 @@ close_session(ClientPid, SessPid) ->
 stop(CPid) ->
     gen_server:call(CPid, stop).
 
+get_last_message() ->
+    [{last_message, Msg}] = ets:lookup(?TAB, last_message),
+    Msg.
+
 init([ClientId]) ->
-    {ok, #state{clean_start = true, client_id = ClientId}}.
+    Result = lists:member(?TAB, ets:all()),
+    if Result == false -> 
+        ets:new(?TAB, [set, named_table]);
+       true -> ok
+    end,
+    {ok, 
+     #state{clean_start = true,
+            client_id = ClientId}
+    }.
 
 handle_call({start_session, ClientPid, ClientId, Zone}, _From, State) ->
     Attrs = #{ zone        => Zone,
                client_id   => ClientId,
-               conn_pid    => ClientPid,
+               conn_pid  => ClientPid,
                clean_start => true,
                username    => undefined,
                conn_props  => undefined
@@ -49,7 +63,7 @@ handle_call({start_session, ClientPid, ClientId, Zone}, _From, State) ->
     {ok, SessPid} = emqx_sm:open_session(Attrs),
     {reply, {ok, SessPid}, State#state{
                              clean_start = true,
-                             client_id = ClientId,
+                             client_id = ClientId, 
                              client_pid = ClientPid
                             }};
 
@@ -66,6 +80,9 @@ handle_call(_Request, _From, State) ->
 handle_cast(_Msg, State) ->
     {noreply, State}.
 
+handle_info({_, Msg}, State) ->
+    ets:insert(?TAB, {last_message, Msg}),
+    {noreply, State};
 handle_info(_Info, State) ->
     {noreply, State}.
 
diff --git a/test/emqx_mountpoint_SUITE.erl b/test/emqx_mountpoint_SUITE.erl
new file mode 100644
index 000000000..61d8d3652
--- /dev/null
+++ b/test/emqx_mountpoint_SUITE.erl
@@ -0,0 +1,36 @@
+%% Copyright (c) 2018 EMQ Technologies Co., Ltd. All Rights Reserved.
+%%
+%% Licensed under the Apache License, Version 2.0 (the "License");
+%% you may not use this file except in compliance with the License.
+%% You may obtain a copy of the License at
+%%
+%%     http://www.apache.org/licenses/LICENSE-2.0
+%%
+%% Unless required by applicable law or agreed to in writing, software
+%% distributed under the License is distributed on an "AS IS" BASIS,
+%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+%% See the License for the specific language governing permissions and
+%% limitations under the License.
+
+-module(emqx_mountpoint_SUITE).
+
+-compile(export_all).
+-compile(nowarn_export_all).
+
+-include("emqx.hrl").
+-include("emqx_mqtt.hrl").
+
+-include_lib("eunit/include/eunit.hrl").
+
+all() -> [t_mount_unmount, t_replvar].
+
+t_mount_unmount(_) ->
+    Msg = emqx_message:make(<<"clientid">>, <<"topic">>, <<"payload">>),
+    Msg2 = emqx_mountpoint:mount(<<"mount">>, Msg),
+    ?assertEqual(<<"mounttopic">>, Msg2#message.topic),
+    TopicFilter = [{<<"mounttopic">>, #{qos => ?QOS2}}],
+    TopicFilter = emqx_mountpoint:mount(<<"mount">>, [{<<"topic">>, #{qos => ?QOS2}}]),
+    Msg = emqx_mountpoint:unmount(<<"mount">>, Msg2).
+
+t_replvar(_) ->
+    <<"mount/test/clientid">> = emqx_mountpoint:replvar(<<"mount/%u/%c">>, #{client_id => <<"clientid">>, username => <<"test">>}).
diff --git a/test/emqx_session_SUITE.erl b/test/emqx_session_SUITE.erl
new file mode 100644
index 000000000..f2da10b74
--- /dev/null
+++ b/test/emqx_session_SUITE.erl
@@ -0,0 +1,57 @@
+%% Copyright (c) 2018 EMQ Technologies Co., Ltd. All Rights Reserved.
+%%
+%% Licensed under the Apache License, Version 2.0 (the "License");
+%% you may not use this file except in compliance with the License.
+%% You may obtain a copy of the License at
+%%
+%%     http://www.apache.org/licenses/LICENSE-2.0
+%%
+%% Unless required by applicable law or agreed to in writing, software
+%% distributed under the License is distributed on an "AS IS" BASIS,
+%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+%% See the License for the specific language governing permissions and
+%% limitations under the License.
+
+-module(emqx_session_SUITE).
+
+-compile(export_all).
+-compile(nowarn_export_all).
+
+-include_lib("common_test/include/ct.hrl").
+
+all() -> [t_session_all].
+
+t_session_all(_) ->
+    emqx_ct_broker_helpers:run_setup_steps(),
+    ClientId = <<"ClientId">>,
+    {ok, ConnPid} = emqx_mock_client:start_link(ClientId),
+    {ok, SPid} = emqx_mock_client:open_session(ConnPid, ClientId, internal),
+    Message1 = emqx_message:make(<<"ClientId">>, 2, <<"topic">>, <<"hello">>),
+    emqx_session:subscribe(SPid, [{<<"topic">>, #{qos => 2}}]),
+    emqx_session:subscribe(SPid, [{<<"topic">>, #{qos => 1}}]),
+    timer:sleep(200),
+    [{<<"topic">>, _}] = emqx:subscriptions({SPid, <<"ClientId">>}),
+    emqx_session:publish(SPid, 1, Message1),
+    timer:sleep(200),
+    {publish, 1, _} = emqx_mock_client:get_last_message(),
+    emqx_session:puback(SPid, 2),
+    emqx_session:puback(SPid, 3, reasoncode),
+    emqx_session:pubrec(SPid, 4),
+    emqx_session:pubrec(SPid, 5, reasoncode),
+    emqx_session:pubrel(SPid, 6, reasoncode),
+    emqx_session:pubcomp(SPid, 7, reasoncode),
+    timer:sleep(200),
+    2 = emqx_metrics:val('packets/puback/missed'),
+    2 = emqx_metrics:val('packets/pubrec/missed'),
+    1 = emqx_metrics:val('packets/pubrel/missed'),
+    1 = emqx_metrics:val('packets/pubcomp/missed'),
+    Attrs = emqx_session:attrs(SPid),
+    Info = emqx_session:info(SPid),
+    Stats = emqx_session:stats(SPid),
+    ClientId = proplists:get_value(client_id, Attrs),
+    ClientId = proplists:get_value(client_id, Info),
+    1 = proplists:get_value(subscriptions_count, Stats),
+    emqx_session:unsubscribe(SPid, [<<"topic">>]),
+    timer:sleep(200),
+    [] = emqx:subscriptions({SPid, <<"clientId">>}),
+    emqx_mock_client:close_session(ConnPid, SPid).
diff --git a/test/emqx_sm_SUITE.erl b/test/emqx_sm_SUITE.erl
index 5bc096cd8..24999f2a0 100644
--- a/test/emqx_sm_SUITE.erl
+++ b/test/emqx_sm_SUITE.erl
@@ -26,7 +26,7 @@ t_open_close_session(_) ->
     {ok, ClientPid} = emqx_mock_client:start_link(<<"client">>),
     Attrs = #{clean_start => true, client_id => <<"client">>, conn_pid => ClientPid,
               zone => internal, username => <<"zhou">>, conn_props => #{}},
-    {ok, _SPid} = emqx_sm:open_session(Attrs),
+    {ok, SPid} = emqx_sm:open_session(Attrs),
     [{<<"client">>, SPid}] = emqx_sm:lookup_session(<<"client">>),
     SPid = emqx_sm:lookup_session_pid(<<"client">>),
     {ok, NewConnPid} = emqx_mock_client:start_link(<<"client">>),