hnbgw: verify empty talloc asn1_context at end of tests
This allowed me to find massive memory leaks in osmo-hnbgw: at the end
of each test, run f_shutdown_helper(), and in it query 'show talloc' for
an empty asn1_context.
Hence verify that all the scenarios run in these ttcn3 tests have no
asn1 de/encoding memory leaks.
Change-Id: I2948ee6f167369a2252f85b493e9653b93c7e4e9
diff --git a/library/Osmocom_VTY_Functions.ttcn b/library/Osmocom_VTY_Functions.ttcn
index ed506a7..a448b8b 100644
--- a/library/Osmocom_VTY_Functions.ttcn
+++ b/library/Osmocom_VTY_Functions.ttcn
@@ -310,4 +310,57 @@
return parts;
}
+public function f_verify_talloc_bytes(TELNETasp_PT pt, ro_charstring object_strs, integer expect_bytes := 0,
+ integer attempts := 5, float wait_time := 3.0)
+{
+ var charstring show_cmd := "show talloc-context application brief";
+
+ while (attempts > 0) {
+ attempts := attempts - 1;
+ var charstring ret := f_vty_transceive_ret(pt, show_cmd);
+
+ var ro_charstring lines := f_str_split(ret);
+
+ var boolean ok := true;
+ for (var integer i := 0; i < lengthof(object_strs); i := i + 1) {
+ var charstring object_str := object_strs[i];
+
+ var integer bytes := 0;
+
+ for (var integer j := 0; j < lengthof(lines); j := j + 1) {
+ var charstring line := lines[j];
+ if (f_strstr(line, object_str) < 0) {
+ continue;
+ }
+ var ro_charstring tokens := f_str_split(line, " ");
+ if (lengthof(tokens) < 4) {
+ continue;
+ }
+ if (tokens[3] != "bytes") {
+ continue;
+ }
+ bytes := f_str2int(tokens[2]);
+ }
+
+ if (bytes != expect_bytes) {
+ ok := false;
+ log("ERROR: talloc reports ", object_str, " = ", bytes, " bytes, expecting ", expect_bytes,
+ " from VTY response ", lines);
+ } else {
+ log("ok: talloc reports ", object_str, " = ", bytes, " bytes");
+ }
+ }
+ if (ok) {
+ return;
+ }
+ if (attempts == 0) {
+ break;
+ }
+ log("bytes count mismatch, retrying in ", wait_time);
+ f_sleep(wait_time);
+ }
+ setverdict(fail, "talloc bytes count mismatch");
+ mtc.stop;
+}
+
}