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bsc: Add tests for assigning channels of all 5 codecs 

This tests if the BSC is chosing the correct codec during the assignment
procedure.

Change-Id: Ia67c09fa725eff48ec56779f8674ddcaa08a8793
This commit is contained in:
Harald Welte 2018-03-21 19:33:13 +01:00
parent 6fa1f73346
commit 60aa576a62
2 changed files with 177 additions and 2 deletions
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173
bsc/BSC_Tests.ttcn
View File

@ -1569,6 +1569,173 @@ testcase TC_assignment_sign() runs on test_CT {
vc_conn.done;
}
/***********************************************************************
* Codec (list) testing
***********************************************************************/
/* check if the given rsl_mode is compatible with the a_elem */
private function f_match_codec(BSSMAP_FIELD_CodecElement a_elem, RSL_IE_ChannelMode rsl_mode)
return boolean {
select (a_elem.codecType) {
case (GSM_FR) {
if (match(rsl_mode, tr_RSL_ChanMode(RSL_CHRT_TCH_F, RSL_CMOD_SP_GSM1))) {
return true;
}
}
case (GSM_HR) {
if (match(rsl_mode, tr_RSL_ChanMode(RSL_CHRT_TCH_H, RSL_CMOD_SP_GSM1))) {
return true;
}
}
case (GSM_EFR) {
if (match(rsl_mode, tr_RSL_ChanMode(RSL_CHRT_TCH_F, RSL_CMOD_SP_GSM2))) {
return true;
}
}
case (FR_AMR) {
if (match(rsl_mode, tr_RSL_ChanMode(RSL_CHRT_TCH_F, RSL_CMOD_SP_GSM3))) {
return true;
}
}
case (HR_AMR) {
if (match(rsl_mode, tr_RSL_ChanMode(RSL_CHRT_TCH_H, RSL_CMOD_SP_GSM3))) {
return true;
}
}
case else { }
}
return false;
}
/* check if the given rsl_mode is compatible with the a_list */
private function f_match_codecs(BSSMAP_IE_SpeechCodecList a_list, RSL_IE_ChannelMode rsl_mode)
return boolean {
for (var integer i := 0; i < sizeof(a_list); i := i+1) {
if (f_match_codec(a_list.codecElements[i], rsl_mode)) {
return true;
}
}
return false;
}
/* determine BSSMAP_IE_ChannelType from *first* element of BSSMAP_FIELD_CodecElement */
private function f_BSSMAP_chtype_from_codec(BSSMAP_FIELD_CodecElement a_elem)
return BSSMAP_IE_ChannelType {
/* FIXME: actually look at all elements of BSSMAP_IE_SpeechCodecList */
var BSSMAP_IE_ChannelType ret := valueof(ts_BSSMAP_IE_ChannelType);
select (a_elem.codecType) {
case (GSM_FR) {
ret.channelRateAndType := ChRate_TCHF;
ret.speechId_DataIndicator := Spdi_TCHF_FR;
}
case (GSM_HR) {
ret.channelRateAndType := ChRate_TCHH;
ret.speechId_DataIndicator := Spdi_TCHH_HR;
}
case (GSM_EFR) {
ret.channelRateAndType := ChRate_TCHF;
ret.speechId_DataIndicator := Spdi_TCHF_EFR;
}
case (FR_AMR) {
ret.channelRateAndType := ChRate_TCHF;
ret.speechId_DataIndicator := Spdi_TCHF_AMR;
}
case (HR_AMR) {
ret.channelRateAndType := ChRate_TCHH;
ret.speechId_DataIndicator := Spdi_TCHH_AMR;
}
case else {
setverdict(fail, "Unsupported codec ", a_elem);
self.stop;
}
}
return ret;
}
type record CodecListTest {
BSSMAP_IE_SpeechCodecList codec_list,
charstring id
}
type record of CodecListTest CodecListTests
private function f_TC_assignment_codec(charstring id) runs on MSC_ConnHdlr {
var BSSMAP_IE_AoIP_TransportLayerAddress tla := valueof(ts_BSSMAP_IE_AoIP_TLA4('01020304'O, 2342));
var PDU_BSSAP ass_cmd := valueof(ts_BSSMAP_AssignmentReq(omit, tla));
var template PDU_BSSAP exp_compl := tr_BSSMAP_AssignmentComplete(omit, ?);
/* puzzle together the ASSIGNMENT REQ for given codec[s] */
ass_cmd.pdu.bssmap.assignmentRequest.codecList := g_pars.ass_codec_list;
ass_cmd.pdu.bssmap.assignmentRequest.channelType :=
f_BSSMAP_chtype_from_codec(g_pars.ass_codec_list.codecElements[0]);
exp_compl.pdu.bssmap.assignmentComplete.speechCodec.codecElements[0] :=
g_pars.ass_codec_list.codecElements[0];
log("expecting ASS COMPL like this: ", exp_compl);
f_establish_fully(ass_cmd, exp_compl);
}
testcase TC_assignment_codec_fr() runs on test_CT {
var TestHdlrParams pars := valueof(t_def_TestHdlrPars);
var MSC_ConnHdlr vc_conn;
f_init(1, true);
f_sleep(1.0);
pars.ass_codec_list := valueof(ts_BSSMAP_IE_CodecList({ts_CodecFR}));
vc_conn := f_start_handler(refers(f_TC_assignment_codec), testcasename(), pars);
vc_conn.done;
}
testcase TC_assignment_codec_hr() runs on test_CT {
var TestHdlrParams pars := valueof(t_def_TestHdlrPars);
var MSC_ConnHdlr vc_conn;
f_init(1, true);
f_sleep(1.0);
pars.ass_codec_list := valueof(ts_BSSMAP_IE_CodecList({ts_CodecHR}));
vc_conn := f_start_handler(refers(f_TC_assignment_codec), testcasename(), pars);
vc_conn.done;
}
testcase TC_assignment_codec_efr() runs on test_CT {
var TestHdlrParams pars := valueof(t_def_TestHdlrPars);
var MSC_ConnHdlr vc_conn;
f_init(1, true);
f_sleep(1.0);
pars.ass_codec_list := valueof(ts_BSSMAP_IE_CodecList({ts_CodecEFR}));
vc_conn := f_start_handler(refers(f_TC_assignment_codec), testcasename(), pars);
vc_conn.done;
}
testcase TC_assignment_codec_amr_f() runs on test_CT {
var TestHdlrParams pars := valueof(t_def_TestHdlrPars);
var MSC_ConnHdlr vc_conn;
f_init(1, true);
f_sleep(1.0);
pars.ass_codec_list := valueof(ts_BSSMAP_IE_CodecList({ts_CodecAMR_F}));
vc_conn := f_start_handler(refers(f_TC_assignment_codec), testcasename(), pars);
vc_conn.done;
}
testcase TC_assignment_codec_amr_h() runs on test_CT {
var TestHdlrParams pars := valueof(t_def_TestHdlrPars);
var MSC_ConnHdlr vc_conn;
f_init(1, true);
f_sleep(1.0);
pars.ass_codec_list := valueof(ts_BSSMAP_IE_CodecList({ts_CodecAMR_H}));
vc_conn := f_start_handler(refers(f_TC_assignment_codec), testcasename(), pars);
vc_conn.done;
}
/* test if L3 RR CLASSMARK CHANGE is translated to BSSMAP CLASSMARK UPDATE */
private function f_tc_classmark(charstring id) runs on MSC_ConnHdlr {
g_pars := valueof(t_def_TestHdlrPars);
@ -1956,6 +2123,12 @@ control {
execute( TC_assignment_fr_a5_3() );
execute( TC_assignment_fr_a5_4() );
execute( TC_assignment_codec_fr() );
execute( TC_assignment_codec_hr() );
execute( TC_assignment_codec_efr() );
execute( TC_assignment_codec_amr_f() );
execute( TC_assignment_codec_amr_h() );
/* RLL Establish Indication on inactive DCHAN / SAPI */
execute( TC_rll_est_ind_inact_lchan() );
execute( TC_rll_est_ind_inval_sapi1() );

6
bsc/MSC_ConnectionHandler.ttcn
View File

@ -348,14 +348,16 @@ type record TestHdlrParams {
OCT1 ra,
GsmFrameNumber fn,
hexstring imsi,
RslLinkId link_id
RslLinkId link_id,
BSSMAP_IE_SpeechCodecList ass_codec_list optional
};
template (value) TestHdlrParams t_def_TestHdlrPars := {
ra := '23'O,
fn := 23,
imsi := '001019876543210'H,
link_id := valueof(ts_RslLinkID_DCCH(0))
link_id := valueof(ts_RslLinkID_DCCH(0)),
ass_codec_list := omit
}
function f_create_chan_and_exp() runs on MSC_ConnHdlr {