s1ap_proxy_test: test E-RAB RELEASE INDICATION

Change-Id: I13584620e28edf529325dc661c4b40d09acacc3f
---
M test/s1ap_proxy_test.erl
1 file changed, 32 insertions(+), 2 deletions(-)


git pull ssh://gerrit.osmocom.org:29418/erlang/osmo-s1gw refs/changes/41/38241/1

diff --git a/test/s1ap_proxy_test.erl b/test/s1ap_proxy_test.erl
index 5f6167d..78b8688 100644
--- a/test/s1ap_proxy_test.erl
+++ b/test/s1ap_proxy_test.erl
@@ -33,7 +33,9 @@
      {"E-RAB SETUP REQUEST/RESPONSE",
       ?TC(fun test_e_rab_setup/1)},
      {"E-RAB RELEASE COMMAND/RESPONSE",
-      ?TC(fun test_e_rab_release/1)},
+      ?TC(fun test_e_rab_release_cmd/1)},
+     {"E-RAB RELEASE INDICATION",
+      ?TC(fun test_e_rab_release_ind/1)},
      {"E-RAB MODIFICATION INDICATION",
       ?TC(fun test_e_rab_modify_ind/1)},
      {"INITIAL CONTEXT SETUP REQUEST/RESPONSE",
@@ -65,7 +67,7 @@
      ?_assertEqual(SetupRspExp, SetupRspOut)].
 
 
-test_e_rab_release(S0) ->
+test_e_rab_release_cmd(S0) ->
     %% [eNB <- MME] E-RAB SETUP REQUEST
     SetupReqIn = e_rab_setup_req_pdu(?ADDR_U2C, ?TEID_U2C),
     {_, S1} = s1ap_proxy:handle_pdu(SetupReqIn, S0),
@@ -88,6 +90,24 @@
      ?_assertEqual(ReleaseRsp, ReleaseRspOut)].
 
 
+test_e_rab_release_ind(S0) ->
+    %% [eNB <- MME] E-RAB SETUP REQUEST
+    SetupReqIn = e_rab_setup_req_pdu(?ADDR_U2C, ?TEID_U2C),
+    {_, S1} = s1ap_proxy:handle_pdu(SetupReqIn, S0),
+
+    %% [eNB -> MME] E-RAB SETUP RESPONSE
+    SetupRspIn = e_rab_setup_rsp_pdu(?ADDR_U2A, ?TEID_U2A),
+    {_, S2} = s1ap_proxy:handle_pdu(SetupRspIn, S1),
+
+    %% [eNB -> MME] E-RAB RELEASE INDICATION
+    ReleaseInd = e_rab_release_ind_pdu(),
+    {ReleaseIndOut, _S3} = s1ap_proxy:handle_pdu(ReleaseInd, S2),
+
+    %% TODO: make sure that the E-RAB FSM has been terminated
+
+    [?_assertEqual(ReleaseInd, ReleaseIndOut)].
+
+
 test_e_rab_modify_ind(S0) ->
     %% [eNB -> MME] E-RAB MODIFICATION INDICATION
     ModifyIndIn = e_rab_modify_ind_pdu(?ADDR_U2A, ?TEID_U2A),
@@ -185,6 +205,16 @@
     >>.
 
 
+%% [eNB -> MME] E-RAB RELEASE INDICATION
+%% TODO: make E-RAB IDs configurable
+e_rab_release_ind_pdu() ->
+    << 16#00, 16#08, 16#00, 16#1b, 16#00, 16#00, 16#03, 16#00,
+       16#00, 16#00, 16#03, 16#40, 16#10, 16#92, 16#00, 16#08,
+       16#00, 16#02, 16#00, 16#00, 16#00, 16#6e, 16#40, 16#07,
+       16#00, 16#00, 16#23, 16#40, 16#02, 16#00, 16#40
+    >>.
+
+
 %% [eNB -> MME] E-RAB MODIFICATION INDICATION
 e_rab_modify_ind_pdu(TLA, TEID) when is_binary(TLA),
                                      is_integer(TEID) ->

