hnb-test: request Iu Release, handle Iu Release Command
diff --git a/src/tests/hnb-test-ranap.c b/src/tests/hnb-test-ranap.c
index 4986e98..a3cae29 100644
--- a/src/tests/hnb-test-ranap.c
+++ b/src/tests/hnb-test-ranap.c
@@ -50,5 +50,9 @@
 
 		hnb_test_rx_secmode_cmd(hnb, *first_alg);
 		return;
+
+	case RANAP_ProcedureCode_id_Iu_Release:
+		hnb_test_rx_iu_release(hnb);
+		return;
 	}
 }