fixeria has submitted this change. ( https://gerrit.osmocom.org/c/osmo-ttcn3-hacks/+/38280?usp=email )
Change subject: s1gw: add TC_initial_ctx_setup_failure ......................................................................
s1gw: add TC_initial_ctx_setup_failure
Change-Id: I969ea6813c9b805d116a974c70ab5f6e6e721e48 --- M s1gw/S1GW_Tests.ttcn M s1gw/expected-results.xml 2 files changed, 46 insertions(+), 2 deletions(-)
Approvals: laforge: Looks good to me, but someone else must approve Jenkins Builder: Verified fixeria: Looks good to me, approved pespin: Looks good to me, but someone else must approve
diff --git a/s1gw/S1GW_Tests.ttcn b/s1gw/S1GW_Tests.ttcn index 2e8ebcb..fbe9d44 100644 --- a/s1gw/S1GW_Tests.ttcn +++ b/s1gw/S1GW_Tests.ttcn @@ -366,7 +366,7 @@ vc_conn.done; }
-/* Test INITIAL CONTEXT SETUP procedure */ +/* Test INITIAL CONTEXT SETUP procedure (successful case) */ function f_TC_initial_ctx_setup(charstring id) runs on ConnHdlr { f_ConnHdlr_s1ap_register(g_pars.genb_id); f_ConnHdlr_s1ap_connect(mp_enb_bind_ip, mp_s1gw_enb_ip); @@ -408,6 +408,48 @@ f_TC_initial_ctx_setup_exec(num_enbs := mp_multi_enb_num, num_erabs := 3); }
+/* Test INITIAL CONTEXT SETUP procedure (failure) */ +function f_TC_initial_ctx_setup_failure(charstring id) runs on ConnHdlr { + var template (present) PDU_PFCP pfcp_pdu; + var template (value) S1AP_PDU s1ap_pdu; + var S1AP_PDU unused; + + f_ConnHdlr_s1ap_register(g_pars.genb_id); + f_ConnHdlr_s1ap_connect(mp_enb_bind_ip, mp_s1gw_enb_ip); + f_ConnHdlr_s1ap_setup(g_pars.genb_id); + + /* Initiate E-RAB establishment by sending INITIAL CONTEXT SETUP */ + f_ConnHdlr_initial_ctx_setup_req(g_pars.erabs); + /* At this point, the associated PFCP session is created, but not modified yet. + * The E-RAB FSM in the IUT is waiting for INITIAL CONTEXT SETUP RESPONSE. */ + + /* INITIAL CONTEXT SETUP FAILURE does not immediately trigger deletion of PFCP + * sessions. It's forwarded as-is without any action. */ + s1ap_pdu := ts_S1AP_InitialCtxSetupFail(mme_id := 4242, + enb_id := g_pars.idx, + cause := { misc := unspecified }); + f_ConnHdlr_tx_s1ap_from_enb(s1ap_pdu); + f_ConnHdlr_rx_s1ap_from_enb(unused, s1ap_pdu); + + /* TODO: Ideally, the IUT should terminate PFCP session(s) immediately. */ + + /* E-RAB FSM in the IUT terminates due to a timeout and deletes PFCP session. */ + pfcp_pdu := tr_PFCP_Session_Del_Req(g_pars.erabs[0].pfcp_loc_seid); + f_ConnHdlr_pfcp_expect(pfcp_pdu, Tval := 8.0); /* > ERAB_T_WAIT_RELEASE_RSP */ + + f_ConnHdlr_s1ap_disconnect(); + f_ConnHdlr_s1ap_unregister(g_pars.genb_id); +} +testcase TC_initial_ctx_setup_failure() runs on test_CT { + var ConnHdlrPars pars := valueof(t_ConnHdlrPars); + var ConnHdlr vc_conn; + + f_init(); + + vc_conn := f_ConnHdlr_spawn(refers(f_TC_initial_ctx_setup_failure), pars); + vc_conn.done; +} + function f_TC_pfcp_heartbeat(charstring id) runs on ConnHdlr { var integer rts := f_PFCPEM_get_recovery_timestamp(); var PDU_PFCP pfcp_pdu; @@ -445,6 +487,7 @@ execute( TC_initial_ctx_setup3() ); execute( TC_initial_ctx_setup_multi() ); execute( TC_initial_ctx_setup3_multi() ); + execute( TC_initial_ctx_setup_failure() ); execute( TC_pfcp_heartbeat() ); }
diff --git a/s1gw/expected-results.xml b/s1gw/expected-results.xml index e50f978..3ddbb23 100644 --- a/s1gw/expected-results.xml +++ b/s1gw/expected-results.xml @@ -1,5 +1,5 @@ <?xml version="1.0"?> -<testsuite name='S1GW_Tests' tests='14' failures='0' errors='0' skipped='0' inconc='0' time='MASKED'> +<testsuite name='S1GW_Tests' tests='15' failures='0' errors='0' skipped='0' inconc='0' time='MASKED'> <testcase classname='S1GW_Tests' name='TC_setup' time='MASKED'/> <testcase classname='S1GW_Tests' name='TC_setup_multi' time='MASKED'/> <testcase classname='S1GW_Tests' name='TC_conn_term_by_mme' time='MASKED'/> @@ -13,5 +13,6 @@ <testcase classname='S1GW_Tests' name='TC_initial_ctx_setup3' time='MASKED'/> <testcase classname='S1GW_Tests' name='TC_initial_ctx_setup_multi' time='MASKED'/> <testcase classname='S1GW_Tests' name='TC_initial_ctx_setup3_multi' time='MASKED'/> + <testcase classname='S1GW_Tests' name='TC_initial_ctx_setup_failure' time='MASKED'/> <testcase classname='S1GW_Tests' name='TC_pfcp_heartbeat' time='MASKED'/> </testsuite>
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fixeria