diff --git a/rw_core/mocks/adapter_olt.go b/rw_core/mocks/adapter_olt.go
index 4d58f00..5f67da7 100644
--- a/rw_core/mocks/adapter_olt.go
+++ b/rw_core/mocks/adapter_olt.go
@@ -18,6 +18,7 @@
 
 import (
 	"context"
+	"errors"
 	"fmt"
 	"strings"
 	"sync"
@@ -310,6 +311,12 @@
 	return nil
 }
 
+// TODO: REMOVE Start_omci_test begins an omci self-test
+func (oltA *OLTAdapter) Start_omci_test(device *voltha.Device, request *voltha.OmciTestRequest) (*ic.TestResponse, error) { // nolint
+	_ = device
+	return nil, errors.New("start-omci-test-not-implemented")
+}
+
 // GetFlowCount returns the total number of flows presently under this adapter
 func (oltA *OLTAdapter) GetFlowCount() int {
 	oltA.lock.Lock()