[fix] using perform_async instead of delay

lib/wisper/sidekiq.rb

@@ -6,7 +6,12 @@
 module Wisper
   class SidekiqBroadcaster
     def broadcast(subscriber, publisher, event, args)
-      subscriber.delay.public_send(event, *args)
+      if subscriber.method_defined?(:perform)
+        subscriber.perform_async(event, args)
+      else
+        method = subscriber.respond_to?(:sidekiq_delay) ? :sidekiq_delay : :delay
+        subscriber.send(method).public_send(event, *args)
+      end
     end
 
     def self.register

spec/dummy_app/subscriber.rb

@@ -1,7 +1,12 @@
 class Subscriber
+  include Sidekiq::Worker
   def self.it_happened(message)
     File.open('/tmp/shared', 'w') do |file|
       file.puts "pid: #{Process.pid}"
     end
   end
+
+  def perform(event_name, *args)
+    self.class.send(event_name, args)
+  end
 end