fixeria has submitted this change. (
https://gerrit.osmocom.org/c/osmo-ttcn3-hacks/+/18187 )
Change subject: PCU: introduce a new test case TC_dl_flow_more_blocks
......................................................................
PCU: introduce a new test case TC_dl_flow_more_blocks
Change-Id: I45edbc943194c15b084eb04dda390db75b4bfa0f
Signed-off-by: Vadim Yanitskiy <axilira...@gmail.com>
Related: OS#4506
---
M pcu/PCU_Tests.ttcn
1 file changed, 81 insertions(+), 0 deletions(-)
Approvals:
Jenkins Builder: Verified
pespin: Looks good to me, approved
diff --git a/pcu/PCU_Tests.ttcn b/pcu/PCU_Tests.ttcn
index 0a6b410..a232a7f 100644
--- a/pcu/PCU_Tests.ttcn
+++ b/pcu/PCU_Tests.ttcn
@@ -1600,6 +1600,86 @@
f_shutdown(__BFILE__, __LINE__, final := true);
}
+/* Verify scheduling of multiple Downlink data blocks during one RRBP. */
+testcase TC_dl_flow_more_blocks() runs on RAW_PCU_Test_CT {
+ var AckNackDescription ack_nack_desc :=
valueof(t_AckNackDescription_init);
+ var octetstring data := f_rnd_octstring(16);
+ var OCT4 tlli := f_rnd_octstring(4);
+ var PacketDlAssign dl_tbf_ass;
+ var GsmRrMessage rr_imm_ass;
+ var RlcmacDlBlock dl_block;
+ var uint32_t ack_fn;
+ var uint32_t fn;
+ timer T := 5.0;
+
+ /* Initialize NS/BSSGP side */
+ f_init_bssgp();
+
+ /* Initialize the PCU interface abstraction */
+ f_init_raw(testcasename());
+
+ /* Establish BSSGP connection to the PCU */
+ f_bssgp_establish();
+ f_bssgp_client_llgmm_assign('FFFFFFFF'O, tlli);
+
+ /* SGSN sends some DL data, PCU will page on CCCH (PCH) */
+ BSSGP[0].send(ts_BSSGP_DL_UD(tlli, data));
+ f_pcuif_rx_pch_imm_tbf_ass(rr_imm_ass);
+
+ /* Make sure we've got a Downlink TBF assignment with DL TFI */
+ f_imm_ass_verify_dl_tbf_ass(rr_imm_ass, dl_tbf_ass);
+ if (not ispresent(dl_tbf_ass.group1)) {
+ setverdict(fail, "Immediate Assignment contains no DL TFI");
+ f_shutdown(__BFILE__, __LINE__);
+ }
+
+ /* Get DL TFI from received Downlink TBF assignment */
+ var uint5_t tfi := dl_tbf_ass.group1.tfi_assignment;
+
+ /* Wait timer X2002 and DL block is available after CCCH IMM ASS */
+ f_sleep(X2002);
+
+ /* Expect the first (GPRS DL) block with bsn=0 and rrbp_valid=1 */
+ f_rx_rlcmac_dl_block_exp_data(dl_block, fn, data, 0);
+ f_acknackdesc_ack_block(ack_nack_desc, dl_block);
+
+ /* TDMA frame number on which we are supposed to send the ACK */
+ ack_fn := f_dl_block_ack_fn(dl_block, fn);
+
+ /* SGSN sends more blocks during the indicated RRBP */
+ for (var integer bsn := 1; bsn < 63; bsn := bsn + 1) {
+ data := f_rnd_octstring(16); /* Random LLC data */
+ BSSGP[0].send(ts_BSSGP_DL_UD(tlli, data));
+
+ f_rx_rlcmac_dl_block_exp_data(dl_block, fn, data, bsn);
+
+ /* Make sure this block has the same TFI as was assigned
+ * FIXME: this is only valid for GPRS, not EGPRS. */
+ if (dl_block.data.mac_hdr.hdr_ext.tfi != tfi) {
+ setverdict(fail, "Rx DL data block with unexpected TFI:
",
+ dl_block.data.mac_hdr.hdr_ext.tfi);
+ f_shutdown(__BFILE__, __LINE__);
+ }
+
+ /* Keep Ack/Nack description updated */
+ f_acknackdesc_ack_block(ack_nack_desc, dl_block);
+
+ /* Break if this is the end of RRBP */
+ if (fn == ack_fn) {
+ ack_nack_desc.final_ack := '1'B;
+ break;
+ }
+ }
+
+ /* This is the end of RRBP, send Packet Downlink Ack/Nack */
+ f_tx_rlcmac_ul_block(ts_RLCMAC_DL_ACK_NACK(tfi, ack_nack_desc), fn :=
fn);
+
+ /* Make sure that the next block (after the Ack) is dummy */
+ f_rx_rlcmac_dl_block_exp_dummy(dl_block);
+
+ f_shutdown(__BFILE__, __LINE__, final := true);
+}
+
private function f_pkt_paging_match_imsi(in PacketPagingReq req, hexstring
imsi)
runs on RAW_PCU_Test_CT {
var MobileIdentityLV_Paging mi_lv :=
req.repeated_pageinfo.cs.mobile_identity;
@@ -1930,6 +2010,7 @@
execute( TC_mt_ping_pong() );
execute( TC_mt_ping_pong_with_dl_racap() );
execute( TC_imm_ass_dl_block_retrans() );
+ execute( TC_dl_flow_more_blocks() );
execute( TC_paging_cs_from_bts() );
execute( TC_paging_cs_from_sgsn_sign_ptmsi() );
execute( TC_paging_cs_from_sgsn_sign() );
--
To view, visit https://gerrit.osmocom.org/c/osmo-ttcn3-hacks/+/18187
To unsubscribe, or for help writing mail filters, visit
https://gerrit.osmocom.org/settings
Gerrit-Project: osmo-ttcn3-hacks
Gerrit-Branch: master
Gerrit-Change-Id: I45edbc943194c15b084eb04dda390db75b4bfa0f
Gerrit-Change-Number: 18187
Gerrit-PatchSet: 2
Gerrit-Owner: fixeria <axilira...@gmail.com>
Gerrit-Reviewer: Jenkins Builder
Gerrit-Reviewer: fixeria <axilira...@gmail.com>
Gerrit-Reviewer: pespin <pes...@sysmocom.de>
Gerrit-MessageType: merged
