make send_later work for module methods

lib/delayed/performable_method.rb

@@ -38,7 +38,7 @@ def load(arg)
 
     def dump(arg)
       case arg
-      when Class              then class_to_string(arg)
+      when Class, Module      then class_to_string(arg)
       when ActiveRecord::Base then ar_to_string(arg)
       else arg
       end
@@ -52,4 +52,4 @@ def class_to_string(obj)
       "CLASS:#{obj.name}"
     end
   end
-end
+end

spec/delayed_method_spec.rb

@@ -11,6 +11,12 @@ def say_hello
   end
 end
 
+module RandomModule
+  def self.say_hello
+    'hello'
+  end
+end
+
 class ErrorObject
 
   def throw
@@ -110,6 +116,14 @@ def read(story)
     job.payload_object.perform.should == 'Epilog: Once upon...'
   end                 
 
+  it "should store the object as string if it's a module" do
+    RandomModule.send_later(:say_hello)
+    job = Delayed::Job.find(:first)
+    job.payload_object.method.should  == :say_hello
+    job.payload_object.object.should  == "CLASS:RandomModule"
+    job.payload_object.perform.should == 'hello'
+  end
+
   it "should call send later on methods which are wrapped with handle_asynchronously" do
     story = Story.create :text => 'Once upon...'