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osmo-ttcn3-hacks
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bsc: Introduce test TC_srvcc_eutran_to_geran_ho_out 

Related: SYS#5337
Change-Id: Id34924bbf0a5cf08b4b6f5ea56a10cef6b69c877
This commit is contained in:
Pau Espin 2021-04-19 13:03:20 +02:00 committed by laforge
parent d004631c82
commit 35801c3edc
2 changed files with 87 additions and 22 deletions
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81
bsc/BSC_Tests.ttcn
View File

@ -4767,19 +4767,12 @@ private function f_expect_dlcx_conns() runs on MSC_ConnHdlr {
BSSAP.receive(tr_BSSMAP_ClearComplete);
}
private function f_tc_ho_out_of_this_bsc(charstring id) runs on MSC_ConnHdlr {
g_pars := f_gen_test_hdlr_pars();
var PDU_BSSAP ass_req := f_gen_ass_req();
ass_req.pdu.bssmap.assignmentRequest.channelType := valueof(ts_BSSMAP_IE_ChannelType);
ass_req.pdu.bssmap.assignmentRequest.codecList := valueof(ts_BSSMAP_IE_CodecList({ts_CodecFR}));
var template PDU_BSSAP exp_compl := f_gen_exp_compl();
f_establish_fully(ass_req, exp_compl);
private function f_ho_out_of_this_bsc(template (omit) BSSMAP_oldToNewBSSIEs exp_oldToNewBSSIEs := omit) runs on MSC_ConnHdlr {
f_bts_0_cfg(BSCVTY, {"neighbor lac 99 arfcn 123 bsic any"});
f_vty_transceive(BSCVTY, "handover any to arfcn 123 bsic any");
BSSAP.receive(tr_BSSMAP_HandoverRequired);
BSSAP.receive(tr_BSSMAP_HandoverRequired(exp_oldToNewBSSIEs));
f_sleep(0.5);
/* The MSC negotiates Handover Request and Handover Request Ack with
@ -4820,6 +4813,17 @@ private function f_tc_ho_out_of_this_bsc(charstring id) runs on MSC_ConnHdlr {
f_expect_dlcx_conns();
setverdict(pass);
}
private function f_tc_ho_out_of_this_bsc(charstring id) runs on MSC_ConnHdlr {
g_pars := f_gen_test_hdlr_pars();
var PDU_BSSAP ass_req := f_gen_ass_req();
ass_req.pdu.bssmap.assignmentRequest.channelType := valueof(ts_BSSMAP_IE_ChannelType);
ass_req.pdu.bssmap.assignmentRequest.codecList := valueof(ts_BSSMAP_IE_CodecList({ts_CodecFR}));
var template PDU_BSSAP exp_compl := f_gen_exp_compl();
f_establish_fully(ass_req, exp_compl);
f_ho_out_of_this_bsc();
f_sleep(1.0);
}
testcase TC_ho_out_of_this_bsc() runs on test_CT {
@ -5105,14 +5109,12 @@ testcase TC_ho_out_fail_no_result_after_ho_cmd() runs on test_CT {
f_shutdown_helper();
}
private function f_tc_ho_into_this_bsc(charstring id) runs on MSC_ConnHdlr {
private function f_ho_into_this_bsc(charstring id, template (omit) BSSMAP_oldToNewBSSIEs oldToNewBSSIEs := omit) runs on MSC_ConnHdlr {
/* Hack: the proper way would be to wait for the BSSMAP Handover Request ACK and extract the
* actual assigned chan_nr from its L3 (RR Handover Command) message. But osmo-bsc starts acting
* on the lchan even before we get a chance to evaluate the BSSMAP Handover Request ACK. So we
* need to assume that osmo-bsc will activate TS 1 and already set up this lchan's RSL emulation
* before we get started. */
var template (omit) BSSMAP_oldToNewBSSIEs oldToNewBSSIEs := omit;
var template PDU_ML3_NW_MS exp_rr_rel_tmpl := tr_RRM_RR_RELEASE;
var RslChannelNr new_chan_nr := valueof(t_RslChanNr0(1, RSL_CHAN_NR_Bm_ACCH));
f_rslem_register(0, new_chan_nr);
g_chan_nr := new_chan_nr;
@ -5122,11 +5124,6 @@ private function f_tc_ho_into_this_bsc(charstring id) runs on MSC_ConnHdlr {
f_MscConnHdlr_init(g_pars.media_nr, "127.0.0.2", "127.0.0.3", FR_AMR);
activate(as_Media());
if (not istemplatekind(g_pars.last_used_eutran_plmn, "omit")) {
oldToNewBSSIEs := f_ts_BSSMAP_oldToNewBSSIEs(ts_BSSMAP_LastUsedEUTRANPLMNId(g_pars.last_used_eutran_plmn));
exp_rr_rel_tmpl := tr_RRM_RR_RELEASE_CellSelectInd;
}
BSSAP.send(ts_BSSAP_Conn_Req(g_pars.sccp_addr_bsc, g_pars.sccp_addr_msc,
f_gen_handover_req(aoip_tla := g_pars.host_aoip_tla,
oldToNewBSSIEs := oldToNewBSSIEs)));
@ -5174,7 +5171,17 @@ private function f_tc_ho_into_this_bsc(charstring id) runs on MSC_ConnHdlr {
enc_PDU_ML3_MS_NW(l3_tx)));
BSSAP.receive(tr_BSSMAP_HandoverComplete);
setverdict(pass);
}
private function f_tc_ho_into_this_bsc(charstring id) runs on MSC_ConnHdlr {
var template PDU_ML3_NW_MS exp_rr_rel_tmpl := tr_RRM_RR_RELEASE;
var template (omit) BSSMAP_oldToNewBSSIEs oldToNewBSSIEs := omit;
if (not istemplatekind(g_pars.last_used_eutran_plmn, "omit")) {
oldToNewBSSIEs := f_ts_BSSMAP_oldToNewBSSIEs(ts_BSSMAP_LastUsedEUTRANPLMNId(g_pars.last_used_eutran_plmn));
exp_rr_rel_tmpl := tr_RRM_RR_RELEASE_CellSelectInd;
}
f_ho_into_this_bsc(id, oldToNewBSSIEs);
f_perform_clear(RSL, exp_rr_rel_tmpl);
setverdict(pass);
}
@ -5213,7 +5220,7 @@ testcase TC_ho_into_this_bsc_tla_v6() runs on test_CT {
}
/* Similar to TC_ho_into_this_bsc, but when in SRVCC, HO Req contains "Old BSS
to New BSS Information" IE with "Last Used E-UTRAN PLMN Id", whihch, when the
to New BSS Information" IE with "Last Used E-UTRAN PLMN Id", which, when the
channel is later released (RR CHannel Release), should trigger inclusion of
IE "Cell Selection Indicator after Release of all TCH and SDCCH" with E-UTRAN
neighbors. */
@ -5224,6 +5231,43 @@ testcase TC_srvcc_eutran_to_geran() runs on test_CT {
f_shutdown_helper();
}
private function f_tc_srvcc_eutran_to_geran_ho_out(charstring id) runs on MSC_ConnHdlr {
var template (omit) BSSMAP_oldToNewBSSIEs oldToNewBSSIEs;
oldToNewBSSIEs := f_ts_BSSMAP_oldToNewBSSIEs(ts_BSSMAP_LastUsedEUTRANPLMNId(g_pars.last_used_eutran_plmn));
f_ho_into_this_bsc(id, oldToNewBSSIEs);
f_ho_out_of_this_bsc(oldToNewBSSIEs);
setverdict(pass);
}
/* First, HO into BSC from EUTRAN (SRVCC): HO Request contains "Old BSS to New
BSS Information" IE with "Last Used E-UTRAN PLMN Id".
Second, HO to another BSC: HO Required contains "Old BSS to New BSS Information"
IE with "Last Used E-UTRAN PLMN Id" from first step. */
testcase TC_srvcc_eutran_to_geran_ho_out() runs on test_CT {
var MSC_ConnHdlr vc_conn;
var TestHdlrParams pars := f_gen_test_hdlr_pars();
f_init(1, true);
f_sleep(1.0);
f_ctrs_bsc_and_bts_init();
pars.last_used_eutran_plmn := '323454'O;
pars.sccp_addr_msc := g_bssap[0].sccp_addr_own;
pars.sccp_addr_bsc := g_bssap[0].sccp_addr_peer;
vc_conn := f_start_handler(refers(f_tc_srvcc_eutran_to_geran_ho_out), pars);
vc_conn.done;
f_ctrs_bsc_and_bts_add(0, "handover:attempted", 2);
f_ctrs_bsc_and_bts_add(0, "handover:completed", 2);
f_ctrs_bsc_and_bts_add(0, "interbsc_ho_in:attempted", 1);
f_ctrs_bsc_and_bts_add(0, "interbsc_ho_in:completed", 1);
f_ctrs_bsc_and_bts_add(0, "interbsc_ho_out:attempted", 1);
f_ctrs_bsc_and_bts_add(0, "interbsc_ho_out:completed", 1);
f_ctrs_bsc_and_bts_verify();
f_shutdown_helper();
}
private function f_tc_ho_in_fail_msc_clears(charstring id) runs on MSC_ConnHdlr {
var RslChannelNr new_chan_nr := valueof(t_RslChanNr0(1, RSL_CHAN_NR_Bm_ACCH));
f_rslem_register(0, new_chan_nr);
@ -8673,6 +8717,7 @@ control {
execute( TC_ho_into_this_bsc_tla_v6() );
}
execute( TC_srvcc_eutran_to_geran() );
execute( TC_srvcc_eutran_to_geran_ho_out() );
execute( TC_ho_in_fail_msc_clears() );
execute( TC_ho_in_fail_msc_clears_after_ho_detect() );
execute( TC_ho_in_fail_no_detect() );

28
library/BSSMAP_Templates.ttcn
View File

@ -232,6 +232,24 @@ function f_ts_BSSMAP_IE_OldToNewBSSInfo(template (omit) BSSMAP_oldToNewBSSIEs va
}
}
template BSSMAP_IE_OldToNewBSSInfo tr_BSSMAP_IE_OldToNewBSSInfo(template (value) BSSMAP_oldToNewBSSIEs val) := {
elementIdentifier := '3A'O,
lengthIndicator := ?, /* overwritten by codec */
oldToNewBSSIEs := enc_BSSMAP_oldToNewBSSIEs(valueof(val))
}
function f_tr_BSSMAP_IE_OldToNewBSSInfo(template BSSMAP_oldToNewBSSIEs val := *)
return template BSSMAP_IE_OldToNewBSSInfo {
if (istemplatekind(val, "*")) {
return *;
} else if (istemplatekind(val, "?")) {
return ?;
} else if (istemplatekind(val, "omit")) {
return omit;
} else {
return tr_BSSMAP_IE_OldToNewBSSInfo(val);
}
}
template (value) BSSMAP_IE_Osmo_OsmuxSupport tr_BSSMAP_IE_Osmo_OsmuxSupport := {
elementIdentifier := 'F0'O
}
@ -815,7 +833,8 @@ template PDU_BSSAP tr_BSSMAP_ClearRequest modifies tr_BSSAP_BSSMAP := {
}
template PDU_BSSAP ts_BSSMAP_HandoverRequired(BssmapCause cause,
template BSSMAP_FIELD_CellIdentificationList cid_list)
template BSSMAP_FIELD_CellIdentificationList cid_list,
template (omit) BSSMAP_oldToNewBSSIEs oldToNewBSSIEs := omit)
modifies ts_BSSAP_BSSMAP := {
pdu := {
bssmap := {
@ -828,7 +847,7 @@ modifies ts_BSSAP_BSSMAP := {
currentChannelType1 := omit,
speechVersion := omit,
queueingIndicator := omit,
oldToNewBSSInfo := omit,
oldToNewBSSInfo := f_ts_BSSMAP_IE_OldToNewBSSInfo(oldToNewBSSIEs),
sourceToTargetRNCTransparentInfo := omit,
sourceToTargetRNCTransparentInfoCDMA := omit,
gERANClassmark := omit,
@ -841,11 +860,12 @@ modifies ts_BSSAP_BSSMAP := {
}
template PDU_BSSAP tr_BSSMAP_HandoverRequired modifies tr_BSSAP_BSSMAP := {
template PDU_BSSAP tr_BSSMAP_HandoverRequired(template BSSMAP_oldToNewBSSIEs oldToNewBSSIEs := *) modifies tr_BSSAP_BSSMAP := {
pdu := {
bssmap := {
handoverRequired := {
messageType := '11'O
messageType := '11'O,
oldToNewBSSInfo := f_tr_BSSMAP_IE_OldToNewBSSInfo(oldToNewBSSIEs)
}
}
}