pcu: Introduce test TC_pcuif_suspend_active_tbf
Related: OS#4761
Change-Id: I9538fbdc806eb26e93a0421b520c8d34de61f91f
diff --git a/pcu/PCU_Tests.ttcn b/pcu/PCU_Tests.ttcn
index 528ee25..13b33b2 100644
--- a/pcu/PCU_Tests.ttcn
+++ b/pcu/PCU_Tests.ttcn
@@ -338,6 +338,80 @@
f_shutdown(__BFILE__, __LINE__, final := true);
}
+/* Make sure TBF is released and no data is sent for in after reciving a Suspend Request from that MS. See OS#4761 */
+testcase TC_pcuif_suspend_active_tbf() runs on RAW_PCU_Test_CT {
+ var octetstring ra_id := enc_RoutingAreaIdentification(mp_gb_cfg.bvc[0].cell_id.ra_id);
+ var RlcmacDlBlock dl_block;
+ var octetstring data := f_rnd_octstring(10);
+ var uint32_t sched_fn;
+ var uint32_t dl_fn;
+ var GprsMS ms;
+ timer T;
+
+ /* Initialize NS/BSSGP side */
+ f_init_bssgp();
+ /* Initialize GPRS MS side */
+ f_init_gprs_ms();
+ ms := g_ms[0]; /* We only use first MS in this test */
+
+ /* Initialize the PCU interface abstraction */
+ f_init_raw(testcasename(), ts_PCUIF_INFO_default(c_PCUIF_Flags_noMCS));
+
+ /* Establish BSSGP connection to the PCU */
+ f_bssgp_establish();
+ f_bssgp_client_llgmm_assign(TLLI_UNUSED, ms.tlli);
+
+ /* Establish an Uplink TBF */
+ f_ms_establish_ul_tbf(ms);
+
+ /* Send one UL block (with TLLI since we are in One-Phase Access
+ contention resoultion) and make sure it is ACKED fine */
+ f_ms_tx_ul_data_block_multi(ms, 1, with_tlli := true);
+ f_rx_rlcmac_dl_block_exp_ack_nack(dl_block, sched_fn);
+ /* DL ACK/NACK sets poll+rrbp requesting PACKET CONTROL ACK */
+ f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), sched_fn);
+
+ /* UL block should be received in SGSN */
+ BSSGP[0].receive(tr_BSSGP_UL_UD(ms.tlli, mp_gb_cfg.bvc[0].cell_id));
+
+ /* Now SGSN sends some DL data, PCU will page on CCCH (PCH) */
+ BSSGP[0].send(ts_BSSGP_DL_UD(ms.tlli, data));
+ f_ms_exp_dl_tbf_ass_ccch(ms, PCU_IF_SAPI_PCH);
+
+ /* Wait timer X2002 and DL block is available after CCCH IMM ASS: */
+ f_sleep(X2002);
+ f_rx_rlcmac_dl_block_exp_data(dl_block, dl_fn, data, 0);
+
+ /* MS has moved to CS, it sent SUSP REQ to BTS and PCU gets it, TBF is freed: */
+ BTS.send(ts_PCUIF_SUSP_REQ(0, ms.tlli, ra_id, 0));
+
+ T.start(2.0);
+ alt {
+ [] BSSGP_GLOBAL[0].receive(tr_BSSGP_SUSPEND(ms.tlli, mp_gb_cfg.bvc[0].cell_id.ra_id)) {
+ setverdict(pass);
+ }
+ [] T.timeout {
+ setverdict(fail, "Timeout waiting for BSSGP SUSPEND");
+ f_shutdown(__BFILE__, __LINE__);
+ }
+ }
+
+ /* Make sure we don't receive data for that TBF since it was released
+ * before. Also check our TBF is not polled for UL. */
+ f_rx_rlcmac_dl_block_exp_dummy(dl_block);
+ if (dl_block.ctrl.mac_hdr.usf != USF_UNUSED) {
+ setverdict(fail, "Unexpected USF ", dl_block.ctrl.mac_hdr.usf);
+ f_shutdown(__BFILE__, __LINE__);
+ }
+
+ /* New data arrives, PCU should page the MS since no TBF active exists: */
+ /* Send some more data, it will never reach the MS */
+ BSSGP[0].send(ts_BSSGP_DL_UD(ms.tlli, data));
+ f_ms_exp_dl_tbf_ass_ccch(ms, PCU_IF_SAPI_PCH);
+
+ f_shutdown(__BFILE__, __LINE__, final := true);
+}
+
/* Test of correct Timing Advance at the time of TBF establishment
* (derived from timing offset of the Access Burst). */
testcase TC_ta_rach_imm_ass() runs on RAW_PCU_Test_CT {
@@ -3494,6 +3568,7 @@
control {
execute( TC_pcuif_suspend() );
+ execute( TC_pcuif_suspend_active_tbf() );
execute( TC_ta_ptcch_idle() );
execute( TC_ta_rach_imm_ass() );
execute( TC_ta_idle_dl_tbf_ass() );