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osmo-ttcn3-hacks
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bsc: Introduce test TC_dyn_ts_sdcch8_act_nack 

Change-Id: I388677c90203853fae584ca60d0e6645bb4ad675
Related: SYS#5309
This commit is contained in:
Pau Espin 2021-06-28 17:14:03 +02:00 committed by pespin
parent 5b38108d71
commit cdf2614314
1 changed files with 66 additions and 0 deletions
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66
bsc/BSC_Tests.ttcn
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@ -6824,6 +6824,71 @@ testcase TC_dyn_ts_sdcch8_act_deact() runs on test_CT {
f_shutdown_helper();
}
/* Test Osmocom dyn TS SDCCH8 activation / deactivation when SDCCH fails at BTS */
testcase TC_dyn_ts_sdcch8_act_nack() runs on test_CT {
var RSL_Message rsl_unused, rsl_msg;
var DchanTuple dt;
var BSSAP_N_CONNECT_ind rx_c_ind;
var GsmRrMessage rr;
/* change Timeslot 6 before f_init() starts RSL */
f_init_vty();
f_ts_set_chcomb(0, 0, 6, "TCH/F_TCH/H_SDCCH8_PDCH");
f_vty_transceive(BSCVTY, "drop bts connection 0 oml");
f_init(1, false);
f_sleep(1.0);
var RslChannelNr pdch_chan_nr := valueof(t_RslChanNr_PDCH(6));
log("TCH/F_TCH/H_SDCCH8_PDCH pchan starts out in disabled mode:");
f_ts_dyn_mode_assert(0, 0, pdch_chan_nr.tn, NONE_MODE);
/* The BSC will activate the dynamic PDCH by default, so confirm that */
rsl_unused := f_exp_ipa_rx(0, tr_RSL_CHAN_ACT_PDCH(pdch_chan_nr, ?));
f_ipa_tx(0, ts_RSL_CHAN_ACT_ACK(pdch_chan_nr, 2342));
f_sleep(1.0);
log("TCH/F_TCH/H_SDCCH8_PDC requested to PDCH ACT on startup, which was ACKed, so now in PDCH:");
f_ts_dyn_mode_assert(0, 0, pdch_chan_nr.tn, PDCH_MODE);
/* Fill TS0 SDCCH channels (NOTE: only 3 SDCCH/4 channels are available
* on CCCH+SDCCH4+CBCH) */
var integer i;
for (i := 0; i < 3; i := i + 1) {
dt := f_est_dchan('23'O, i, '00010203040506'O);
}
/* Now the dyn ts is selected. First PDCH is released, then sdcch chan is activated */
f_ipa_tx(0, ts_RSL_CHAN_RQD(int2oct(oct2int('23'O) + i, 1), 2342));
rsl_unused := f_exp_ipa_rx(0, tr_RSL_RF_CHAN_REL(pdch_chan_nr));
f_ipa_tx(0, ts_RSL_RF_CHAN_REL_ACK(pdch_chan_nr));
rsl_msg := f_exp_ipa_rx(0, tr_RSL_MsgTypeD(RSL_MT_CHAN_ACTIV));
dt.rsl_chan_nr := rsl_msg.ies[0].body.chan_nr;
f_ts_dyn_mode_assert(0, 0, dt.rsl_chan_nr.tn, SDCCH8_MODE);
f_ipa_tx(0, ts_RSL_CHAN_ACT_NACK(dt.rsl_chan_nr, RSL_ERR_EQUIPMENT_FAIL));
rsl_msg := f_exp_ipa_rx(0, tr_RSL_IMM_ASSIGN(0));
rr := dec_GsmRrMessage(rsl_msg.ies[1].body.full_imm_ass_info.payload);
if (rr.header.message_type != IMMEDIATE_ASSIGNMENT_REJECT) {
Misc_Helpers.f_shutdown(__BFILE__, __LINE__, fail, "Expected reject");
}
/* FIXME? Currently the TS stays in state BORKEN: */
/* The BSC will switch the TS back to PDCH once the only lchan using it is released: */
/* rsl_unused := f_exp_ipa_rx(0, tr_RSL_CHAN_ACT_PDCH(pdch_chan_nr, ?));
* f_ipa_tx(0, ts_RSL_CHAN_ACT_ACK(pdch_chan_nr, 2342));
* f_sleep(1.0);
* f_ts_dyn_mode_assert(0, 0, pdch_chan_nr.tn, PDCH_MODE)
*/
/* clean up config */
f_ts_set_chcomb(0, 0, 6, "PDCH");
f_shutdown_helper();
}
testcase TC_chopped_ipa_ping() runs on test_CT {
const Integers bsc_ipa_ports := {mp_bsc_rsl_port, mp_bsc_oml_port, mp_bsc_ctrl_port};
for (var integer i := 0; i < lengthof(bsc_ipa_ports); i := i + 1) {
@ -9269,6 +9334,7 @@ control {
execute( TC_dyn_pdch_osmo_act_deact() );
execute( TC_dyn_pdch_osmo_act_nack() );
execute( TC_dyn_ts_sdcch8_act_deact() );
execute( TC_dyn_ts_sdcch8_act_nack() );
execute( TC_chopped_ipa_ping() );
execute( TC_chopped_ipa_payload() );