VOL-2204 Throw fatal error after a consumer stop

Change-Id: I6e87a88ece2f7dc496d263ff0fc501bd8685cc72
diff --git a/main_test.go b/main_test.go
index 362a135..f25d132 100644
--- a/main_test.go
+++ b/main_test.go
@@ -226,3 +226,7 @@
 func (kc *mockKafkaClient) EnableLivenessChannel(enable bool) chan bool {
 	return nil
 }
+
+func (kc *mockKafkaClient) EnableHealthinessChannel(enable bool) chan bool {
+	return nil
+}