Merge pull request #309 from zacviandier/rspec_on_event_arguments

Rspec custom matcher: `on_event` with arguments

README.md

@@ -778,6 +778,8 @@ expect(job).to allow_event :run
 expect(job).to_not allow_event :clean
 expect(job).to allow_transition_to(:running)
 expect(job).to_not allow_transition_to(:cleaning)
+# on_event also accept arguments
+expect(job).to transition_from(:sleeping).to(:running).on_event(:run, :defragmentation)
 
 # classes with multiple state machine
 multiple = SimpleMultipleExample.new

lib/aasm/rspec/transition_from.rb

@@ -2,8 +2,7 @@
   match do |obj|
     @state_machine_name ||= :default
     obj.aasm(@state_machine_name).current_state = from_state.to_sym
-    # expect(obj).to receive(:broadcast_event).with(@event.to_s, obj, from_state, @to_state)
-    obj.send(@event) && obj.aasm(@state_machine_name).current_state == @to_state.to_sym
+    obj.send(@event, *@args) && obj.aasm(@state_machine_name).current_state == @to_state.to_sym
   end
 
   chain :on do |state_machine_name|
@@ -14,12 +13,13 @@
     @to_state = state
   end
 
-  chain :on_event do |event|
+  chain :on_event do |event, *args|
     @event = event
+    @args = args
   end
 
   description do
-    "transition state to :#{@to_state} from :#{expected} on event :#{@event} (on :#{@state_machine_name})"
+    "transition state to :#{@to_state} from :#{expected} on event :#{@event}, with params: #{@args} (on :#{@state_machine_name})"
   end
 
   failure_message do |obj|