BSC_Tests: TC_paging_counter: add bsc pag expired

Test the new bsc.N.paging:expired stat in TC_paging_counter too.

Depends: osmo-bsc I9c118e7e3d61ed8c9f1951111255b196905eba4d
Related: SYS#4878
Change-Id: I8931bf1bc2f4e0d4b168168cdb83683bb350d961
diff --git a/bsc/BSC_Tests.ttcn b/bsc/BSC_Tests.ttcn
index b34ad29..d8e2ab1 100644
--- a/bsc/BSC_Tests.ttcn
+++ b/bsc/BSC_Tests.ttcn
@@ -3312,6 +3312,7 @@
 	var integer i;
 	var integer paging_attempted_bsc;
 	var integer paging_attempted_bts[NUM_BTS];
+	var integer paging_expired_bsc;
 	var integer paging_expired_bts[NUM_BTS];
 	cid_list := valueof(ts_BSSMAP_CIL_noCell);
 
@@ -3319,6 +3320,9 @@
 
 	/* read counters before paging */
 	paging_attempted_bsc := f_ctrl_get_ratectr_abs(IPA_CTRL, "bsc", 0, "paging:attempted");
+	if (Misc_Helpers.f_osmo_repo_is("nightly")) { /* osmo-bsc > 1.8.0 */
+		paging_expired_bsc := f_ctrl_get_ratectr_abs(IPA_CTRL, "bsc", 0, "paging:expired");
+	}
 	for (i := 0; i < NUM_BTS; i := i+1) {
 		paging_attempted_bts[i] := f_ctrl_get_ratectr_abs(IPA_CTRL, "bts", i, "paging:attempted");
 		paging_expired_bts[i] := f_ctrl_get_ratectr_abs(IPA_CTRL, "bts", i, "paging:expired");
@@ -3335,6 +3339,9 @@
 
 	/* assume that 12s later the paging on all BTSs have expired and hence incremented by 1 */
 	f_sleep(12.0);
+	if (Misc_Helpers.f_osmo_repo_is("nightly")) { /* osmo-bsc > 1.8.0 */
+		f_ctrl_get_exp_ratectr_abs(IPA_CTRL, "bsc", 0, "paging:expired", paging_expired_bsc+1);
+	}
 	for (i := 0; i < NUM_BTS; i := i+1) {
 		f_ctrl_get_exp_ratectr_abs(IPA_CTRL, "bts", i, "paging:expired",
 						paging_expired_bts[i]+1);