spec/unit/realtime/channel_spec.rb in ably-1.0.5 vs spec/unit/realtime/channel_spec.rb in ably-1.0.6

@@ -201,10 +201,10 @@
       end
     end
 
     context '#unsubscribe' do
       let(:callback) do
-        Proc.new { |message| message_history[:received] += 1 }
+        lambda { |message| message_history[:received] += 1 }
       end
 
       before do
         allow(subject).to receive(:attach).and_return(:true)
         subject.subscribe click_event, &callback