Upgrade to Rails 2.2.0

As a side benefit, fix an (non-user-visible) bug in display_s5().
Also fixed a bug where removing orphaned pages did not expire cached summary pages.

vendor/rails/activemodel/test/state_machine/event_test.rb

@@ -0,0 +1,51 @@
+require File.expand_path(File.join(File.dirname(__FILE__), '..', 'test_helper'))
+
+class EventTest < ActiveModel::TestCase
+  def setup
+    @name = :close_order
+    @success = :success_callback
+  end
+
+  def new_event
+    @event = ActiveModel::StateMachine::Event.new(nil, @name, {:success => @success}) do
+      transitions :to => :closed, :from => [:open, :received]
+    end
+  end
+
+  test 'should set the name' do
+    assert_equal @name, new_event.name
+  end
+
+  test 'should set the success option' do
+    assert_equal @success, new_event.success
+  end
+
+  uses_mocha 'StateTransition creation' do
+    test 'should create StateTransitions' do
+      ActiveModel::StateMachine::StateTransition.expects(:new).with(:to => :closed, :from => :open)
+      ActiveModel::StateMachine::StateTransition.expects(:new).with(:to => :closed, :from => :received)
+      new_event
+    end
+  end
+end
+
+class EventBeingFiredTest < ActiveModel::TestCase
+  test 'should raise an AASM::InvalidTransition error if the transitions are empty' do
+    event = ActiveModel::StateMachine::Event.new(nil, :event)
+
+    assert_raises ActiveModel::StateMachine::InvalidTransition do
+      event.fire(nil)
+    end
+  end
+
+  test 'should return the state of the first matching transition it finds' do
+    event = ActiveModel::StateMachine::Event.new(nil, :event) do
+      transitions :to => :closed, :from => [:open, :received]
+    end
+
+    obj = stub
+    obj.stubs(:current_state).returns(:open)
+
+    assert_equal :closed, event.fire(obj)
+  end
+end