added spec for i18n

spec/en.yml

@@ -0,0 +1,10 @@
+en:
+  activerecord:
+    events:
+      i18n_test_model:
+        close: "Let's close it!"
+
+    attributes:
+      i18n_test_model:
+        aasm_state:
+          open: "It's opened now!"

spec/unit/i18n_spec.rb

@@ -0,0 +1,59 @@
+require 'spec_helper'
+require 'active_record'
+require 'logger'
+require 'i18n'
+
+ActiveRecord::Base.logger = Logger.new(STDERR)
+
+class Connection
+end
+
+class I18nTestModel < ActiveRecord::Base
+  include AASM
+  
+  attr_accessor :aasm_state
+
+  aasm_initial_state :open
+  aasm_state :opened
+  aasm_state :closed
+
+  aasm_event :close
+  aasm_event :open
+end
+
+describe AASM::I18n do
+  before(:all) do
+    I18n.load_path << 'spec/en.yml'
+    I18n.default_locale = :en
+  end
+  
+  after(:all) { I18n.load_path.clear }
+
+  before do
+    connection = mock(Connection, :columns => [])
+    I18nTestModel.stub!(:connection).and_return(connection)
+  end
+
+  let (:foo_opened) { I18nTestModel.new }
+  let (:foo_closed) { I18nTestModel.new.tap {|x| x.aasm_state = :closed  } }
+
+  context '.human_state' do
+    it 'should return translated state value' do
+       foo_opened.human_state.should == "It's opened now!"
+    end
+
+    it 'should return humanized value if not localized' do
+      foo_closed.human_state.should == "Closed"
+    end
+  end
+
+  context '.human_event_name' do
+    it 'should return translated event name' do
+      I18nTestModel.human_event_name(:close).should == "Let's close it!"
+    end
+
+    it 'should return humanized event name' do
+      I18nTestModel.human_event_name(:open).should == "Open"
+    end
+  end
+end