diff --git a/srsenb/test/common/dummy_classes.h b/srsenb/test/common/dummy_classes.h
index 5d09e5e5d..69511dbf9 100644
--- a/srsenb/test/common/dummy_classes.h
+++ b/srsenb/test/common/dummy_classes.h
@@ -33,12 +33,15 @@ public:
   void reset() override {}
   int  ue_cfg(uint16_t rnti, sched_interface::ue_cfg_t* cfg) override { return 0; }
   int  ue_rem(uint16_t rnti) override { return 0; }
+  int  ue_set_crnti(uint16_t temp_crnti, uint16_t crnti, sched_interface::ue_cfg_t* cfg) override { return 0; }
   int  bearer_ue_cfg(uint16_t rnti, uint32_t lc_id, sched_interface::ue_bearer_cfg_t* cfg) override { return 0; }
   int  bearer_ue_rem(uint16_t rnti, uint32_t lc_id) override { return 0; }
   void phy_config_enabled(uint16_t rnti, bool enabled) override {}
   void write_mcch(asn1::rrc::sib_type2_s* sib2, asn1::rrc::sib_type13_r9_s* sib13, asn1::rrc::mcch_msg_s* mcch) override
-  {
-  }
+  {}
+  uint16_t allocate_rnti() override { return last_rnti++; }
+
+  uint16_t last_rnti = 70;
 };
 
 class rlc_dummy : public rlc_interface_rrc