diff --git a/inmem/buf.go b/inmem/buf.go
new file mode 100644
index 0000000000..32243e0e2d
--- /dev/null
+++ b/inmem/buf.go
@@ -0,0 +1,15 @@
+package inmem
+
+import ()
+
+type Buffer []*Message
+
+func (buf *Buffer) Send(msg *Message, mode int) (Receiver, Sender, error) {
+	(*buf) = append(*buf, msg)
+	return NopReceiver{}, NopSender{}, nil
+}
+
+func (buf *Buffer) Close() error {
+	(*buf) = nil
+	return nil
+}