Fix around_transition pausing not being marked as unsupported for rub…

…inius

CHANGELOG.md

@@ -1,5 +1,6 @@
 # master
 
+* Fix around_transition pausing not being marked as unsupported for rubinius [Daniel Huckstep]
 * Fix all / any / same matchers not being able to be used in :from / :to options in transitions and callbacks
 * Fix ActiveModel locale paths not being loaded properly under certain JRuby environments [Brad Heller]
 * Remove dependency on the validation_class_methods plugin for Sequel 2.12.0+ [Casey Howard]

lib/state_machine/transition.rb

@@ -84,6 +84,12 @@ class Transition
     # Whether the transition is only existing temporarily for the object
     attr_writer :transient
 
+    # Determines whether the curreny ruby implementation supports pausing and
+    # resuming transitions
+    def self.pause_supported?
+      RUBY_PLATFORM != 'java' && (!defined?(RUBY_ENGINE) || RUBY_ENGINE != 'rbx')
+    end
+
     # Creates a new, specific transition
     def initialize(object, machine, event, from_name, to_name, read_state = true) #:nodoc:
       @object = object
@@ -355,7 +361,7 @@ def pausable
       # around callbacks when the remainder of the callback will be executed at
       # a later point in time.
       def pause
-        raise ArgumentError, 'around_transition callbacks cannot be called in multiple execution contexts in java implementations of Ruby. Use before/after_transitions instead.' if RUBY_PLATFORM == 'java'
+        raise ArgumentError, 'around_transition callbacks cannot be called in multiple execution contexts in java implementations of Ruby. Use before/after_transitions instead.' unless self.class.pause_supported?
 
         unless @resume_block
           require 'continuation' unless defined?(callcc)

test/unit/transition_collection_test.rb

@@ -1152,7 +1152,7 @@ def test_should_run_after_callbacks_on_subsequent_perform
   end
 end
 
-if RUBY_PLATFORM != 'java'
+if StateMachine::Transition.pause_supported?
   class TransitionCollectionWithSkippedAfterCallbacksAndAroundCallbacksTest < Test::Unit::TestCase
     def setup
       @klass = Class.new
@@ -2137,7 +2137,7 @@ def test_should_marshal_during_after_callbacks
     end
   end
 
-  if RUBY_PLATFORM != 'java'
+  if StateMachine::Transition.pause_supported?
     def test_should_marshal_during_around_callbacks_before_yield
       @machine.around_transition {|object, transition, block| Marshal.dump(object); block.call}
       assert_nothing_raised do

test/unit/transition_test.rb

@@ -1221,7 +1221,7 @@ def test_should_not_run_after_callbacks
     assert !@run
   end
 
-  if RUBY_PLATFORM != 'java'
+  if StateMachine::Transition.pause_supported?
     def test_should_run_around_callbacks_before_yield
       @machine.around_transition {|block| @run = true; block.call}