diff --git a/test/sdp_client/mock.c b/test/sdp_client/mock.c
index ebd46e7f5..5d3a8eac4 100644
--- a/test/sdp_client/mock.c
+++ b/test/sdp_client/mock.c
@@ -3,12 +3,22 @@
 
 #include "btstack_defines.h"
 #include "btstack_debug.h"
+#include "btstack_util.h"
 #include "bluetooth.h"
 
+static btstack_packet_handler_t packet_handler;
+
 extern "C" int l2cap_can_send_packet_now(uint16_t cid){
     return 1;
 }
-extern "C" uint8_t l2cap_create_channel(btstack_packet_handler_t packet_handler, bd_addr_t address, uint16_t psm, uint16_t mtu, uint16_t * out_local_cid){
+extern "C" void l2cap_request_can_send_now_event(uint16_t cid){
+    uint8_t event[] = { L2CAP_EVENT_CAN_SEND_NOW, 2, 0, 0};
+    little_endian_store_16(event, 2, cid);
+    packet_handler(HCI_EVENT_PACKET, 0, event, sizeof(event));
+}
+
+extern "C" uint8_t l2cap_create_channel(btstack_packet_handler_t handler, bd_addr_t address, uint16_t psm, uint16_t mtu, uint16_t * out_local_cid){
+	packet_handler = handler;
     return 0x41;
 }
 extern "C" void l2cap_disconnect(uint16_t local_cid, uint8_t reason){
diff --git a/test/security_manager/mock.c b/test/security_manager/mock.c
index da8966b0a..ac46a2f0e 100644
--- a/test/security_manager/mock.c
+++ b/test/security_manager/mock.c
@@ -147,6 +147,13 @@ void gap_advertisements_get_address(uint8_t * addr_type, bd_addr_t addr){
     uint8_t channel_map, uint8_t filter_policy) {
  }
 
+extern "C" void l2cap_request_can_send_fix_channel_now_event(hci_con_handle_t con_handle, uint16_t cid){
+	if (packet_buffer_len) return;
+    uint8_t event[] = { L2CAP_EVENT_CAN_SEND_NOW, 2, 0, 0};
+    little_endian_store_16(event, 2, cid);
+    le_data_handler(HCI_EVENT_PACKET, 0, event, sizeof(event));
+}
+
 int  l2cap_can_send_connectionless_packet_now(void){
 	return packet_buffer_len == 0;
 }