bsc: Testing of dynamic PDCH (both IPA style and Osmocom style)
This adds a set of four new testcases relted to dynamic PDCH switching:
One successful and one unsuccessful for each Osmo + IPA style dynamic
PDCH.
Closes: OS#3099
Change-Id: I7a7a937548a35461d86e93ead79c39a37a59563e
diff --git a/bsc/BSC_Tests.ttcn b/bsc/BSC_Tests.ttcn
index a70ed53..0dfb708 100644
--- a/bsc/BSC_Tests.ttcn
+++ b/bsc/BSC_Tests.ttcn
@@ -281,7 +281,11 @@
vc_MGCP.start(MGCP_Emulation.main(ops, mgcp_pars, id));
}
-private function f_init_vty(charstring id) runs on test_CT {
+private function f_init_vty(charstring id := "foo") runs on test_CT {
+ if (BSCVTY.checkstate("Mapped")) {
+ /* skip initialization if already executed once */
+ return;
+ }
map(self:BSCVTY, system:BSCVTY);
f_vty_set_prompts(BSCVTY);
f_vty_transceive(BSCVTY, "enable");
@@ -1917,6 +1921,14 @@
vc_conn.done;
}
+/* execute a "bts <0-255> trx <0-255> timeslot <0-7> " command on given Dchan */
+private function f_vty_ts_action(charstring suffix, integer bts_nr, integer trx_nr, integer ts_nr)
+runs on test_CT {
+ var charstring cmd := "bts "&int2str(bts_nr)&" trx "&int2str(trx_nr)&
+ " timeslot "&int2str(ts_nr)&" ";
+ f_vty_transceive(BSCVTY, cmd & suffix);
+}
+
/* execute a "bts <0-255> trx <0-255> timeslot <0-7> sub-slot <0-7>" command on given Dchan */
private function f_vty_ss_action(charstring suffix, integer bts_nr, integer trx_nr, RslChannelNr chan_nr)
runs on MSC_ConnHdlr {
@@ -2145,6 +2157,239 @@
f_shutdown_helper();
}
+/***********************************************************************
+ * IPA style dynamic PDCH
+ ***********************************************************************/
+
+private function f_dyn_ipa_pdch_act(integer bts_nr, integer trx_nr, integer ts_nr,
+ template (omit) RSL_Cause nack := omit)
+runs on test_CT {
+ var RslChannelNr chan_nr := valueof(t_RslChanNr_Bm(ts_nr));
+ var RSL_Message rsl_unused;
+ /* ask BSC via VTY to activate a given IPA style chan as PDCH */
+ f_vty_ts_action("pdch activate", bts_nr, trx_nr, ts_nr);
+ /* expect the BSC to issue the related RSL command */
+ rsl_unused := f_exp_ipa_rx(0, tr_RSL_IPA_PDCH_ACT(chan_nr));
+ if (istemplatekind(nack, "omit")) {
+ /* respond with a related acknowledgement */
+ f_ipa_tx(0, ts_RSL_IPA_PDCH_ACT_ACK(chan_nr, ts_RSL_IE_FrameNumber(2342)));
+ } else {
+ f_ipa_tx(0, ts_RSL_IPA_PDCH_ACT_NACK(chan_nr, valueof(nack)));
+ }
+}
+
+private function f_dyn_ipa_pdch_deact(integer bts_nr, integer trx_nr, integer ts_nr,
+ template (omit) RSL_Cause nack := omit)
+runs on test_CT {
+ var RslChannelNr chan_nr := valueof(t_RslChanNr_Bm(ts_nr));
+ var RSL_Message rsl_unused;
+ /* ask BSC via VTY to activate a given IPA style chan as PDCH */
+ f_vty_ts_action("pdch deactivate", bts_nr, trx_nr, ts_nr);
+ /* expect the BSC to issue the related RSL command */
+ rsl_unused := f_exp_ipa_rx(0, tr_RSL_IPA_PDCH_DEACT(chan_nr));
+ if (istemplatekind(nack, "omit")) {
+ /* respond with a related acknowledgement */
+ f_ipa_tx(0, ts_RSL_IPA_PDCH_DEACT_ACK(chan_nr));
+ } else {
+ f_ipa_tx(0, ts_RSL_IPA_PDCH_DEACT_NACK(chan_nr, valueof(nack)));
+ }
+}
+
+private function f_ts_dyn_mode_get(integer bts_nr, integer trx_nr, integer ts_nr)
+runs on test_CT return charstring {
+ var charstring cmd, resp;
+ cmd := "show timeslot "&int2str(bts_nr)&" "&int2str(trx_nr)&" "&int2str(ts_nr);
+ resp := f_vty_transceive_ret(BSCVTY, cmd);
+ return regexp(resp, "*\((*)\)*", 0);
+}
+
+private function f_ts_dyn_mode_assert(integer bts_nr, integer trx_nr, integer ts_nr,
+ template charstring exp)
+runs on test_CT {
+ var charstring mode := f_ts_dyn_mode_get(bts_nr, trx_nr, ts_nr);
+ if (not match(mode, exp)) {
+ setverdict(fail, "Unexpected TS Mode: ", mode);
+ self.stop;
+ }
+}
+
+private function f_ts_set_chcomb(integer bts_nr, integer trx_nr, integer ts_nr, charstring chcomb)
+runs on test_CT {
+ f_vty_enter_cfg_ts(BSCVTY, bts_nr, trx_nr, ts_nr);
+ f_vty_transceive(BSCVTY, "phys_chan_config " & chcomb);
+ f_vty_transceive(BSCVTY, "end");
+}
+
+private const charstring TCHF_MODE := "TCH/F mode";
+private const charstring TCHH_MODE := "TCH/H mode";
+private const charstring PDCH_MODE := "PDCH mode";
+private const charstring NONE_MODE := "NONE mode";
+
+/* Test IPA PDCH activation / deactivation triggered by VTY */
+testcase TC_dyn_pdch_ipa_act_deact() runs on test_CT {
+ var RSL_Message rsl_unused;
+
+ /* change Timeslot 6 before f_init() starts RSL */
+ f_init_vty();
+ f_ts_set_chcomb(0, 0, 6, "TCH/F_PDCH");
+ f_vty_transceive(BSCVTY, "drop bts connection 0 oml");
+
+ f_init(1, false);
+ f_sleep(1.0);
+
+ var RslChannelNr chan_nr := valueof(t_RslChanNr_Bm(6));
+
+ f_ts_dyn_mode_assert(0, 0, chan_nr.tn, TCHF_MODE);
+ /* The BSC will activate the dynamic PDCH by default, so confirm that */
+ rsl_unused := f_exp_ipa_rx(0, tr_RSL_IPA_PDCH_ACT(chan_nr));
+ f_ipa_tx(0, ts_RSL_IPA_PDCH_ACT_ACK(chan_nr, ts_RSL_IE_FrameNumber(2342)));
+ f_sleep(1.0);
+ f_ts_dyn_mode_assert(0, 0, chan_nr.tn, PDCH_MODE);
+
+ /* De-activate it via VTY */
+ f_dyn_ipa_pdch_deact(0, 0, chan_nr.tn);
+ f_sleep(1.0);
+ f_ts_dyn_mode_assert(0, 0, chan_nr.tn, TCHF_MODE);
+
+ /* re-activate it via VTY */
+ f_dyn_ipa_pdch_act(0, 0, chan_nr.tn);
+ f_sleep(1.0);
+ f_ts_dyn_mode_assert(0, 0, chan_nr.tn, PDCH_MODE);
+
+ /* and finally de-activate it again */
+ f_dyn_ipa_pdch_deact(0, 0, chan_nr.tn);
+ f_sleep(1.0);
+ f_ts_dyn_mode_assert(0, 0, chan_nr.tn, TCHF_MODE);
+
+ setverdict(pass);
+}
+
+/* Test IPA PDCH activation NACK */
+testcase TC_dyn_pdch_ipa_act_nack() runs on test_CT {
+ var RSL_Message rsl_unused;
+
+ /* change Timeslot 6 before f_init() starts RSL */
+ f_init_vty();
+ f_ts_set_chcomb(0, 0, 6, "TCH/F_PDCH");
+ f_vty_transceive(BSCVTY, "drop bts connection 0 oml");
+
+ f_init(1, false);
+ f_sleep(1.0);
+
+ var RslChannelNr chan_nr := valueof(t_RslChanNr_Bm(6));
+
+ f_ts_dyn_mode_assert(0, 0, chan_nr.tn, TCHF_MODE);
+ /* The BSC will activate the dynamic PDCH by default, so confirm that */
+ rsl_unused := f_exp_ipa_rx(0, tr_RSL_IPA_PDCH_ACT(chan_nr));
+ f_ipa_tx(0, ts_RSL_IPA_PDCH_ACT_ACK(chan_nr, ts_RSL_IE_FrameNumber(2342)));
+ f_sleep(1.0);
+ f_ts_dyn_mode_assert(0, 0, chan_nr.tn, PDCH_MODE);
+
+ /* De-activate it via VTY */
+ f_dyn_ipa_pdch_deact(0, 0, chan_nr.tn);
+ f_sleep(1.0);
+ f_ts_dyn_mode_assert(0, 0, chan_nr.tn, TCHF_MODE);
+
+ /* re-activate it via VTY, but fail that; check BSC still assumes TCH/F mode */
+ f_dyn_ipa_pdch_act(0, 0, chan_nr.tn, RSL_ERR_EQUIPMENT_FAIL);
+ f_sleep(1.0);
+ f_ts_dyn_mode_assert(0, 0, chan_nr.tn, TCHF_MODE);
+
+ setverdict(pass);
+}
+
+
+/***********************************************************************
+ * Osmocom style dynamic PDCH
+ ***********************************************************************/
+
+private function f_dyn_osmo_pdch_act(integer bts_nr, integer trx_nr, integer ts_nr,
+ template (omit) RSL_Cause nack := omit)
+runs on test_CT {
+ var RslChannelNr chan_nr := valueof(t_RslChanNr_PDCH(ts_nr));
+ var RSL_Message rsl_unused;
+ /* ask BSC via VTY to activate a given IPA style chan as PDCH */
+ /* FIXME: no VTY command to activate Osmocom PDCH !! */
+ /* expect the BSC to issue the related RSL command */
+ rsl_unused := f_exp_ipa_rx(0, tr_RSL_CHAN_ACT(chan_nr, ?));
+ if (istemplatekind(nack, "omit")) {
+ /* respond with a related acknowledgement */
+ f_ipa_tx(0, ts_RSL_CHAN_ACT_ACK(chan_nr, 2342));
+ } else {
+ f_ipa_tx(0, ts_RSL_CHAN_ACT_NACK(chan_nr, valueof(nack)));
+ }
+}
+
+private function f_dyn_osmo_pdch_deact(integer bts_nr, integer trx_nr, integer ts_nr,
+ template (omit) RSL_Cause nack := omit)
+runs on test_CT {
+ var RslChannelNr chan_nr := valueof(t_RslChanNr_PDCH(ts_nr));
+ var RSL_Message rsl_unused;
+ /* ask BSC via VTY to activate a given IPA style chan as PDCH */
+ /* FIXME: no VTY command to activate Osmocom PDCH !! */
+ /* expect the BSC to issue the related RSL command */
+ rsl_unused := f_exp_ipa_rx(0, tr_RSL_RF_CHAN_REL(chan_nr));
+ if (istemplatekind(nack, "omit")) {
+ /* respond with a related acknowledgement */
+ f_ipa_tx(0, ts_RSL_RF_CHAN_REL_ACK(chan_nr));
+ } else {
+ //f_ipa_tx(0, ts_RSL_RF_CHAN_REL_NACK(chan_nr, valueof(nack)));
+ }
+}
+
+/* Test Osmocom dyn PDCH activation / deactivation triggered by VTY */
+testcase TC_dyn_pdch_osmo_act_deact() runs on test_CT {
+ var RSL_Message rsl_unused;
+
+ /* change Timeslot 6 before f_init() starts RSL */
+ f_init_vty();
+ f_ts_set_chcomb(0, 0, 6, "TCH/F_TCH/H_PDCH");
+ f_vty_transceive(BSCVTY, "drop bts connection 0 oml");
+
+ f_init(1, false);
+ f_sleep(1.0);
+
+ var RslChannelNr chan_nr := valueof(t_RslChanNr_PDCH(6));
+
+ f_ts_dyn_mode_assert(0, 0, 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(chan_nr, ?));
+
+ f_ipa_tx(0, ts_RSL_CHAN_ACT_ACK(chan_nr, 2342));
+ f_sleep(1.0);
+ f_ts_dyn_mode_assert(0, 0, chan_nr.tn, PDCH_MODE);
+
+ setverdict(pass);
+}
+
+/* Test Osmocom dyn PDCH activation NACK behavior */
+testcase TC_dyn_pdch_osmo_act_nack() runs on test_CT {
+ var RSL_Message rsl_unused;
+
+ /* change Timeslot 6 before f_init() starts RSL */
+ f_init_vty();
+ f_ts_set_chcomb(0, 0, 6, "TCH/F_TCH/H_PDCH");
+ f_vty_transceive(BSCVTY, "drop bts connection 0 oml");
+
+ f_init(1, false);
+ f_sleep(1.0);
+
+ var RslChannelNr chan_nr := valueof(t_RslChanNr_PDCH(6));
+
+ f_ts_dyn_mode_assert(0, 0, 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(chan_nr, ?));
+
+ /* NACK this activation and expect the "show timeslot" mode still to be NONE */
+ f_ipa_tx(0, ts_RSL_CHAN_ACT_NACK(chan_nr, RSL_ERR_EQUIPMENT_FAIL));
+ f_sleep(1.0);
+ f_ts_dyn_mode_assert(0, 0, chan_nr.tn, NONE_MODE);
+
+ setverdict(pass);
+}
+
+
+
control {
/* CTRL interface testing */
execute( TC_ctrl_msc_connection_status() );
@@ -2229,6 +2474,11 @@
execute( TC_bssap_rlsd_does_not_cause_bssmap_reset() );
execute( TC_bssmap_clear_does_not_cause_bssmap_reset() );
execute( TC_ms_rel_ind_does_not_cause_bssmap_reset() );
+
+ execute( TC_dyn_pdch_ipa_act_deact() );
+ execute( TC_dyn_pdch_ipa_act_nack() );
+ execute( TC_dyn_pdch_osmo_act_deact() );
+ execute( TC_dyn_pdch_osmo_act_nack() );
}
}