[VOL-4442] grpc streaming connection monitoring

Change-Id: I435a03fdc0ac2b549dc4512220148cb19c16db19
diff --git a/internal/pkg/core/openolt_test.go b/internal/pkg/core/openolt_test.go
index c549d44..f909128 100644
--- a/internal/pkg/core/openolt_test.go
+++ b/internal/pkg/core/openolt_test.go
@@ -50,7 +50,7 @@
 	numOnus        int
 	KVStoreAddress string
 	KVStoreType    string
-	exitChannel    chan int
+	exitChannel    chan struct{}
 	ctx            context.Context
 }
 
@@ -543,7 +543,7 @@
 		args    args
 		wantErr error
 	}{
-		{"stop-1", &fields{exitChannel: make(chan int, 1)}, args{}, errors.New("stop error")},
+		{"stop-1", &fields{exitChannel: make(chan struct{})}, args{}, errors.New("stop error")},
 	}
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {