Merge pull request #431 from ably/fix/channel-detach-lamdba

Fix lamda used in channel detach

lib/ably/realtime/channel/channel_manager.rb

@@ -243,10 +243,10 @@ def send_detach_protocol_message(previous_state)
           end
         end
 
-        on_disconnected_and_connected = lambda do
+        on_disconnected_and_connected = lambda do |&block|
           connection.unsafe_once(:disconnected) do
             connection.unsafe_once(:connected) do
-              yield if pending_state_change_timer
+              block.call if pending_state_change_timer
             end if pending_state_change_timer
           end
         end

spec/acceptance/realtime/channel_spec.rb

@@ -830,10 +830,8 @@ def disconnect_transport
           it 'does the detach operation once the connection state is connected (#RTL5h)' do
             connection.once(:connected) do
               connection.once(:disconnected) do
-                channel.on :attaching do
-                  channel.detach
-                end
                 channel.attach
+                channel.detach
                 connection.once(:connected) do
                   channel.once(:attached) do
                     channel.once(:detached) do