Change in osmo-ttcn3-hacks[master]: pcu: Introduce test TC_cs_initial_dl

[pespin]

pespin has uploaded this change for review. ( https://gerrit.osmocom.org/c/osmo-ttcn3-hacks/+/21035 )


Change subject: pcu: Introduce test TC_cs_initial_dl
......................................................................

pcu: Introduce test TC_cs_initial_dl

Change-Id: I00bae15a007935cc4e027e63de4367d83e994bd7
---
M pcu/PCU_Tests.ttcn
1 file changed, 46 insertions(+), 0 deletions(-)



  git pull ssh://gerrit.osmocom.org:29418/osmo-ttcn3-hacks refs/changes/35/21035/1

diff --git a/pcu/PCU_Tests.ttcn b/pcu/PCU_Tests.ttcn
index 0430473..59f1c90 100644
--- a/pcu/PCU_Tests.ttcn
+++ b/pcu/PCU_Tests.ttcn
@@ -822,6 +822,51 @@
 	f_shutdown(__BFILE__, __LINE__, final := true);
 }
 
+/* Test the initial DL CS set by VTY works fine */
+testcase TC_cs_initial_dl() runs on RAW_PCU_Test_CT {
+	var octetstring data := f_rnd_octstring(10);
+	var CodingScheme exp_dl_cs_mcs;
+	var RlcmacDlBlock dl_block;
+	var uint32_t poll_fn;
+	var GprsMS ms;
+
+	/* 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));
+
+	/* Set initial allowed DL CS to 3 */
+	g_cs_initial_dl := 3;
+	exp_dl_cs_mcs := CS_3;
+	/* Set maximum allowed UL CS to 4 */
+	g_cs_max_dl := 4;
+	f_pcuvty_set_allowed_cs_mcs();
+	f_pcuvty_set_link_quality_ranges();
+
+	/* Establish BSSGP connection to the PCU */
+	f_bssgp_establish();
+	f_bssgp_client_llgmm_assign(TLLI_UNUSED, ms.tlli);
+
+	/* 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, poll_fn, data, 0, exp_dl_cs_mcs);
+
+	/* ACK the DL block */
+	f_acknackdesc_ack_block(ms.dl_tbf.acknack_desc, dl_block, '1'B);
+	f_ms_tx_ul_block(ms, ts_RLCMAC_DL_ACK_NACK(ms.dl_tbf.tfi, ms.dl_tbf.acknack_desc),
+			 f_dl_block_ack_fn(dl_block, poll_fn));
+
+	f_shutdown(__BFILE__, __LINE__, final := true);
+}
+
 /* Verify PCU drops TBF after some time of inactivity. */
 testcase TC_t3169() runs on RAW_PCU_Test_CT {
 	var PCUIF_info_ind info_ind;
@@ -2716,6 +2761,7 @@
 	execute( TC_cs_lqual_ul_tbf() );
 	execute( TC_cs_initial_ul() );
 	execute( TC_cs_max_ul() );
+	execute( TC_cs_initial_dl() );
 	execute( TC_t3169() );
 	execute( TC_t3193() );
 	execute( TC_countdown_procedure() );

-- 
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Gerrit-Project: osmo-ttcn3-hacks
Gerrit-Branch: master
Gerrit-Change-Id: I00bae15a007935cc4e027e63de4367d83e994bd7
Gerrit-Change-Number: 21035
Gerrit-PatchSet: 1
Gerrit-Owner: pespin <pespin at sysmocom.de>
Gerrit-MessageType: newchange
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