wiki branch merged into trunk

git-svn-id: http://redmine.rubyforge.org/svn/trunk@323 e93f8b46-1217-0410-a6f0-8f06a7374b81

16 files changed, 615 insertions, 0 deletions

diff --git a/vendor/plugins/acts_as_versioned/test/abstract_unit.rb b/vendor/plugins/acts_as_versioned/test/abstract_unit.rb
new file mode 100644
index 000000000..1740db8dc
--- /dev/null
+++ b/vendor/plugins/acts_as_versioned/test/abstract_unit.rb
@@ -0,0 +1,40 @@
+$:.unshift(File.dirname(__FILE__) + '/../lib')
+
+require 'test/unit'
+require File.expand_path(File.join(File.dirname(__FILE__), '../../../../config/environment.rb'))
+require 'active_record/fixtures'
+
+config = YAML::load(IO.read(File.dirname(__FILE__) + '/database.yml'))
+ActiveRecord::Base.logger = Logger.new(File.dirname(__FILE__) + "/debug.log")
+ActiveRecord::Base.establish_connection(config[ENV['DB'] || 'sqlite'])
+
+load(File.dirname(__FILE__) + "/schema.rb")
+
+# set up custom sequence on widget_versions for DBs that support sequences
+if ENV['DB'] == 'postgresql'
+  ActiveRecord::Base.connection.execute "DROP SEQUENCE widgets_seq;" rescue nil
+  ActiveRecord::Base.connection.remove_column :widget_versions, :id
+  ActiveRecord::Base.connection.execute "CREATE SEQUENCE widgets_seq START 101;"
+  ActiveRecord::Base.connection.execute "ALTER TABLE widget_versions ADD COLUMN id INTEGER PRIMARY KEY DEFAULT nextval('widgets_seq');"
+end
+
+Test::Unit::TestCase.fixture_path = File.dirname(__FILE__) + "/fixtures/"
+$LOAD_PATH.unshift(Test::Unit::TestCase.fixture_path)
+
+class Test::Unit::TestCase #:nodoc:
+  def create_fixtures(*table_names)
+    if block_given?
+      Fixtures.create_fixtures(Test::Unit::TestCase.fixture_path, table_names) { yield }
+    else
+      Fixtures.create_fixtures(Test::Unit::TestCase.fixture_path, table_names)
+    end
+  end
+
+  # Turn off transactional fixtures if you're working with MyISAM tables in MySQL
+  self.use_transactional_fixtures = true
+  
+  # Instantiated fixtures are slow, but give you @david where you otherwise would need people(:david)
+  self.use_instantiated_fixtures  = false
+
+  # Add more helper methods to be used by all tests here...
+end
\ No newline at end of file
diff --git a/vendor/plugins/acts_as_versioned/test/database.yml b/vendor/plugins/acts_as_versioned/test/database.yml
new file mode 100644
index 000000000..506e6bd37
--- /dev/null
+++ b/vendor/plugins/acts_as_versioned/test/database.yml
@@ -0,0 +1,18 @@
+sqlite:
+  :adapter: sqlite
+  :dbfile: acts_as_versioned_plugin.sqlite.db
+sqlite3:
+  :adapter: sqlite3
+  :dbfile: acts_as_versioned_plugin.sqlite3.db
+postgresql:
+  :adapter: postgresql
+  :username: postgres
+  :password: postgres
+  :database: acts_as_versioned_plugin_test
+  :min_messages: ERROR
+mysql:
+  :adapter: mysql
+  :host: localhost
+  :username: rails
+  :password:
+  :database: acts_as_versioned_plugin_test
\ No newline at end of file
diff --git a/vendor/plugins/acts_as_versioned/test/fixtures/authors.yml b/vendor/plugins/acts_as_versioned/test/fixtures/authors.yml
new file mode 100644
index 000000000..bd7a5aed6
--- /dev/null
+++ b/vendor/plugins/acts_as_versioned/test/fixtures/authors.yml
@@ -0,0 +1,6 @@
+caged:
+  id: 1
+  name: caged
+mly:
+  id: 2
+  name: mly
\ No newline at end of file
diff --git a/vendor/plugins/acts_as_versioned/test/fixtures/landmark.rb b/vendor/plugins/acts_as_versioned/test/fixtures/landmark.rb
new file mode 100644
index 000000000..cb9b93057
--- /dev/null
+++ b/vendor/plugins/acts_as_versioned/test/fixtures/landmark.rb
@@ -0,0 +1,3 @@
+class Landmark < ActiveRecord::Base
+  acts_as_versioned :if_changed => [ :name, :longitude, :latitude ]
+end
diff --git a/vendor/plugins/acts_as_versioned/test/fixtures/landmark_versions.yml b/vendor/plugins/acts_as_versioned/test/fixtures/landmark_versions.yml
new file mode 100644
index 000000000..2dbd54ed2
--- /dev/null
+++ b/vendor/plugins/acts_as_versioned/test/fixtures/landmark_versions.yml
@@ -0,0 +1,7 @@
+washington:
+    id: 1
+    landmark_id: 1
+    version: 1
+    name: Washington, D.C.
+    latitude: 38.895
+    longitude: -77.036667
diff --git a/vendor/plugins/acts_as_versioned/test/fixtures/landmarks.yml b/vendor/plugins/acts_as_versioned/test/fixtures/landmarks.yml
new file mode 100644
index 000000000..46d96176a
--- /dev/null
+++ b/vendor/plugins/acts_as_versioned/test/fixtures/landmarks.yml
@@ -0,0 +1,6 @@
+washington:
+    id: 1
+    name: Washington, D.C.
+    latitude: 38.895
+    longitude: -77.036667
+    version: 1
diff --git a/vendor/plugins/acts_as_versioned/test/fixtures/locked_pages.yml b/vendor/plugins/acts_as_versioned/test/fixtures/locked_pages.yml
new file mode 100644
index 000000000..318e776cb
--- /dev/null
+++ b/vendor/plugins/acts_as_versioned/test/fixtures/locked_pages.yml
@@ -0,0 +1,10 @@
+welcome:
+  id: 1
+  title: Welcome to the weblog
+  lock_version: 24
+  type: LockedPage
+thinking:
+  id: 2
+  title: So I was thinking
+  lock_version: 24
+  type: SpecialLockedPage
diff --git a/vendor/plugins/acts_as_versioned/test/fixtures/locked_pages_revisions.yml b/vendor/plugins/acts_as_versioned/test/fixtures/locked_pages_revisions.yml
new file mode 100644
index 000000000..5c978e629
--- /dev/null
+++ b/vendor/plugins/acts_as_versioned/test/fixtures/locked_pages_revisions.yml
@@ -0,0 +1,27 @@
+welcome_1:
+  id: 1
+  page_id: 1
+  title: Welcome to the weblg
+  version: 23
+  version_type: LockedPage
+
+welcome_2:
+  id: 2
+  page_id: 1
+  title: Welcome to the weblog
+  version: 24
+  version_type: LockedPage
+
+thinking_1:
+  id: 3
+  page_id: 2
+  title: So I was thinking!!!
+  version: 23
+  version_type: SpecialLockedPage
+
+thinking_2:
+  id: 4
+  page_id: 2
+  title: So I was thinking
+  version: 24
+  version_type: SpecialLockedPage
diff --git a/vendor/plugins/acts_as_versioned/test/fixtures/migrations/1_add_versioned_tables.rb b/vendor/plugins/acts_as_versioned/test/fixtures/migrations/1_add_versioned_tables.rb
new file mode 100644
index 000000000..9512b5e82
--- /dev/null
+++ b/vendor/plugins/acts_as_versioned/test/fixtures/migrations/1_add_versioned_tables.rb
@@ -0,0 +1,13 @@
+class AddVersionedTables < ActiveRecord::Migration
+  def self.up
+    create_table("things") do |t|
+      t.column :title, :text
+    end
+    Thing.create_versioned_table
+  end
+  
+  def self.down
+    Thing.drop_versioned_table
+    drop_table "things" rescue nil
+  end
+end
\ No newline at end of file
diff --git a/vendor/plugins/acts_as_versioned/test/fixtures/page.rb b/vendor/plugins/acts_as_versioned/test/fixtures/page.rb
new file mode 100644
index 000000000..f133e351a
--- /dev/null
+++ b/vendor/plugins/acts_as_versioned/test/fixtures/page.rb
@@ -0,0 +1,43 @@
+class Page < ActiveRecord::Base
+  belongs_to :author
+  has_many   :authors,  :through => :versions, :order => 'name'
+  belongs_to :revisor,  :class_name => 'Author'
+  has_many   :revisors, :class_name => 'Author', :through => :versions, :order => 'name'
+  acts_as_versioned :if => :feeling_good? do
+    def self.included(base)
+      base.cattr_accessor :feeling_good
+      base.feeling_good = true
+      base.belongs_to :author
+      base.belongs_to :revisor, :class_name => 'Author'
+    end
+    
+    def feeling_good?
+      @@feeling_good == true
+    end
+  end
+end
+
+module LockedPageExtension
+  def hello_world
+    'hello_world'
+  end
+end
+
+class LockedPage < ActiveRecord::Base
+  acts_as_versioned \
+    :inheritance_column => :version_type, 
+    :foreign_key        => :page_id, 
+    :table_name         => :locked_pages_revisions, 
+    :class_name         => 'LockedPageRevision',
+    :version_column     => :lock_version,
+    :limit              => 2,
+    :if_changed         => :title,
+    :extend             => LockedPageExtension
+end
+
+class SpecialLockedPage < LockedPage
+end
+
+class Author < ActiveRecord::Base
+  has_many :pages
+end
\ No newline at end of file
diff --git a/vendor/plugins/acts_as_versioned/test/fixtures/page_versions.yml b/vendor/plugins/acts_as_versioned/test/fixtures/page_versions.yml
new file mode 100644
index 000000000..ef565fa4f
--- /dev/null
+++ b/vendor/plugins/acts_as_versioned/test/fixtures/page_versions.yml
@@ -0,0 +1,16 @@
+welcome_2:
+  id: 1
+  page_id: 1
+  title: Welcome to the weblog
+  body: Such a lovely day
+  version: 24
+  author_id: 1
+  revisor_id: 1
+welcome_1:
+  id: 2
+  page_id: 1
+  title: Welcome to the weblg
+  body: Such a lovely day
+  version: 23
+  author_id: 2
+  revisor_id: 2
diff --git a/vendor/plugins/acts_as_versioned/test/fixtures/pages.yml b/vendor/plugins/acts_as_versioned/test/fixtures/pages.yml
new file mode 100644
index 000000000..07ac51f97
--- /dev/null
+++ b/vendor/plugins/acts_as_versioned/test/fixtures/pages.yml
@@ -0,0 +1,7 @@
+welcome:
+  id: 1
+  title: Welcome to the weblog
+  body: Such a lovely day
+  version: 24
+  author_id: 1
+  revisor_id: 1
\ No newline at end of file
diff --git a/vendor/plugins/acts_as_versioned/test/fixtures/widget.rb b/vendor/plugins/acts_as_versioned/test/fixtures/widget.rb
new file mode 100644
index 000000000..3c38f2fcf
--- /dev/null
+++ b/vendor/plugins/acts_as_versioned/test/fixtures/widget.rb
@@ -0,0 +1,6 @@
+class Widget < ActiveRecord::Base
+  acts_as_versioned :sequence_name => 'widgets_seq', :association_options => {
+    :dependent => nil, :order => 'version desc'
+  }
+  non_versioned_columns << 'foo'
+end
\ No newline at end of file
diff --git a/vendor/plugins/acts_as_versioned/test/migration_test.rb b/vendor/plugins/acts_as_versioned/test/migration_test.rb
new file mode 100644
index 000000000..d85e95883
--- /dev/null
+++ b/vendor/plugins/acts_as_versioned/test/migration_test.rb
@@ -0,0 +1,32 @@
+require File.join(File.dirname(__FILE__), 'abstract_unit')
+
+if ActiveRecord::Base.connection.supports_migrations? 
+  class Thing < ActiveRecord::Base
+    attr_accessor :version
+    acts_as_versioned
+  end
+
+  class MigrationTest < Test::Unit::TestCase
+    self.use_transactional_fixtures = false
+    def teardown
+      ActiveRecord::Base.connection.initialize_schema_information
+      ActiveRecord::Base.connection.update "UPDATE schema_info SET version = 0"
+
+      Thing.connection.drop_table "things" rescue nil
+      Thing.connection.drop_table "thing_versions" rescue nil
+      Thing.reset_column_information
+    end
+        
+    def test_versioned_migration
+      assert_raises(ActiveRecord::StatementInvalid) { Thing.create :title => 'blah blah' }
+      # take 'er up
+      ActiveRecord::Migrator.up(File.dirname(__FILE__) + '/fixtures/migrations/')
+      t = Thing.create :title => 'blah blah'
+      assert_equal 1, t.versions.size
+
+      # now lets take 'er back down
+      ActiveRecord::Migrator.down(File.dirname(__FILE__) + '/fixtures/migrations/')
+      assert_raises(ActiveRecord::StatementInvalid) { Thing.create :title => 'blah blah' }
+    end
+  end
+end
diff --git a/vendor/plugins/acts_as_versioned/test/schema.rb b/vendor/plugins/acts_as_versioned/test/schema.rb
new file mode 100644
index 000000000..7d5153d07
--- /dev/null
+++ b/vendor/plugins/acts_as_versioned/test/schema.rb
@@ -0,0 +1,68 @@
+ActiveRecord::Schema.define(:version => 0) do
+  create_table :pages, :force => true do |t|
+    t.column :version, :integer
+    t.column :title, :string, :limit => 255
+    t.column :body, :text
+    t.column :updated_on, :datetime
+    t.column :author_id, :integer
+    t.column :revisor_id, :integer
+  end
+
+  create_table :page_versions, :force => true do |t|
+    t.column :page_id, :integer
+    t.column :version, :integer
+    t.column :title, :string, :limit => 255
+    t.column :body, :text
+    t.column :updated_on, :datetime
+    t.column :author_id, :integer
+    t.column :revisor_id, :integer
+  end
+  
+  create_table :authors, :force => true do |t|
+    t.column :page_id, :integer
+    t.column :name, :string
+  end
+  
+  create_table :locked_pages, :force => true do |t|
+    t.column :lock_version, :integer
+    t.column :title, :string, :limit => 255
+    t.column :type, :string, :limit => 255
+  end
+
+  create_table :locked_pages_revisions, :force => true do |t|
+    t.column :page_id, :integer
+    t.column :version, :integer
+    t.column :title, :string, :limit => 255
+    t.column :version_type, :string, :limit => 255
+    t.column :updated_at, :datetime
+  end
+
+  create_table :widgets, :force => true do |t|
+    t.column :name, :string, :limit => 50
+    t.column :foo, :string
+    t.column :version, :integer
+    t.column :updated_at, :datetime
+  end
+
+  create_table :widget_versions, :force => true do |t|
+    t.column :widget_id, :integer
+    t.column :name, :string, :limit => 50
+    t.column :version, :integer
+    t.column :updated_at, :datetime
+  end
+  
+  create_table :landmarks, :force => true do |t|
+    t.column :name, :string
+    t.column :latitude, :float
+    t.column :longitude, :float
+    t.column :version, :integer
+  end
+
+  create_table :landmark_versions, :force => true do |t|
+    t.column :landmark_id, :integer
+    t.column :name, :string
+    t.column :latitude, :float
+    t.column :longitude, :float
+    t.column :version, :integer
+  end
+end
diff --git a/vendor/plugins/acts_as_versioned/test/versioned_test.rb b/vendor/plugins/acts_as_versioned/test/versioned_test.rb
new file mode 100644
index 000000000..c1e1a4b98
--- /dev/null
+++ b/vendor/plugins/acts_as_versioned/test/versioned_test.rb
@@ -0,0 +1,313 @@
+require File.join(File.dirname(__FILE__), 'abstract_unit')
+require File.join(File.dirname(__FILE__), 'fixtures/page')
+require File.join(File.dirname(__FILE__), 'fixtures/widget')
+
+class VersionedTest < Test::Unit::TestCase
+  fixtures :pages, :page_versions, :locked_pages, :locked_pages_revisions, :authors, :landmarks, :landmark_versions
+
+  def test_saves_versioned_copy
+    p = Page.create :title => 'first title', :body => 'first body'
+    assert !p.new_record?
+    assert_equal 1, p.versions.size
+    assert_equal 1, p.version
+    assert_instance_of Page.versioned_class, p.versions.first
+  end
+
+  def test_saves_without_revision
+    p = pages(:welcome)
+    old_versions = p.versions.count
+    
+    p.save_without_revision
+    
+    p.without_revision do
+      p.update_attributes :title => 'changed'
+    end
+    
+    assert_equal old_versions, p.versions.count
+  end
+
+  def test_rollback_with_version_number
+    p = pages(:welcome)
+    assert_equal 24, p.version
+    assert_equal 'Welcome to the weblog', p.title
+    
+    assert p.revert_to!(p.versions.first.version), "Couldn't revert to 23"
+    assert_equal 23, p.version
+    assert_equal 'Welcome to the weblg', p.title
+  end
+
+  def test_versioned_class_name
+    assert_equal 'Version', Page.versioned_class_name
+    assert_equal 'LockedPageRevision', LockedPage.versioned_class_name
+  end
+
+  def test_versioned_class
+    assert_equal Page::Version,                  Page.versioned_class
+    assert_equal LockedPage::LockedPageRevision, LockedPage.versioned_class
+  end
+
+  def test_special_methods
+    assert_nothing_raised { pages(:welcome).feeling_good? }
+    assert_nothing_raised { pages(:welcome).versions.first.feeling_good? }
+    assert_nothing_raised { locked_pages(:welcome).hello_world }
+    assert_nothing_raised { locked_pages(:welcome).versions.first.hello_world }
+  end
+
+  def test_rollback_with_version_class
+    p = pages(:welcome)
+    assert_equal 24, p.version
+    assert_equal 'Welcome to the weblog', p.title
+    
+    assert p.revert_to!(p.versions.first), "Couldn't revert to 23"
+    assert_equal 23, p.version
+    assert_equal 'Welcome to the weblg', p.title
+  end
+  
+  def test_rollback_fails_with_invalid_revision
+    p = locked_pages(:welcome)
+    assert !p.revert_to!(locked_pages(:thinking))
+  end
+
+  def test_saves_versioned_copy_with_options
+    p = LockedPage.create :title => 'first title'
+    assert !p.new_record?
+    assert_equal 1, p.versions.size
+    assert_instance_of LockedPage.versioned_class, p.versions.first
+  end
+  
+  def test_rollback_with_version_number_with_options
+    p = locked_pages(:welcome)
+    assert_equal 'Welcome to the weblog', p.title
+    assert_equal 'LockedPage', p.versions.first.version_type
+    
+    assert p.revert_to!(p.versions.first.version), "Couldn't revert to 23"
+    assert_equal 'Welcome to the weblg', p.title
+    assert_equal 'LockedPage', p.versions.first.version_type
+  end
+  
+  def test_rollback_with_version_class_with_options
+    p = locked_pages(:welcome)
+    assert_equal 'Welcome to the weblog', p.title
+    assert_equal 'LockedPage', p.versions.first.version_type
+    
+    assert p.revert_to!(p.versions.first), "Couldn't revert to 1"
+    assert_equal 'Welcome to the weblg', p.title
+    assert_equal 'LockedPage', p.versions.first.version_type
+  end
+  
+  def test_saves_versioned_copy_with_sti
+    p = SpecialLockedPage.create :title => 'first title'
+    assert !p.new_record?
+    assert_equal 1, p.versions.size
+    assert_instance_of LockedPage.versioned_class, p.versions.first
+    assert_equal 'SpecialLockedPage', p.versions.first.version_type
+  end
+  
+  def test_rollback_with_version_number_with_sti
+    p = locked_pages(:thinking)
+    assert_equal 'So I was thinking', p.title
+    
+    assert p.revert_to!(p.versions.first.version), "Couldn't revert to 1"
+    assert_equal 'So I was thinking!!!', p.title
+    assert_equal 'SpecialLockedPage', p.versions.first.version_type
+  end
+
+  def test_lock_version_works_with_versioning
+    p = locked_pages(:thinking)
+    p2 = LockedPage.find(p.id)
+    
+    p.title = 'fresh title'
+    p.save
+    assert_equal 2, p.versions.size # limit!
+    
+    assert_raises(ActiveRecord::StaleObjectError) do
+      p2.title = 'stale title'
+      p2.save
+    end
+  end
+
+  def test_version_if_condition
+    p = Page.create :title => "title"
+    assert_equal 1, p.version
+    
+    Page.feeling_good = false
+    p.save
+    assert_equal 1, p.version
+    Page.feeling_good = true
+  end
+  
+  def test_version_if_condition2
+    # set new if condition
+    Page.class_eval do
+      def new_feeling_good() title[0..0] == 'a'; end
+      alias_method :old_feeling_good, :feeling_good?
+      alias_method :feeling_good?, :new_feeling_good
+    end
+    
+    p = Page.create :title => "title"
+    assert_equal 1, p.version # version does not increment
+    assert_equal 1, p.versions(true).size
+    
+    p.update_attributes(:title => 'new title')
+    assert_equal 1, p.version # version does not increment
+    assert_equal 1, p.versions(true).size
+    
+    p.update_attributes(:title => 'a title')
+    assert_equal 2, p.version
+    assert_equal 2, p.versions(true).size
+    
+    # reset original if condition
+    Page.class_eval { alias_method :feeling_good?, :old_feeling_good }
+  end
+  
+  def test_version_if_condition_with_block
+    # set new if condition
+    old_condition = Page.version_condition
+    Page.version_condition = Proc.new { |page| page.title[0..0] == 'b' }
+    
+    p = Page.create :title => "title"
+    assert_equal 1, p.version # version does not increment
+    assert_equal 1, p.versions(true).size
+    
+    p.update_attributes(:title => 'a title')
+    assert_equal 1, p.version # version does not increment
+    assert_equal 1, p.versions(true).size
+    
+    p.update_attributes(:title => 'b title')
+    assert_equal 2, p.version
+    assert_equal 2, p.versions(true).size
+    
+    # reset original if condition
+    Page.version_condition = old_condition
+  end
+
+  def test_version_no_limit
+    p = Page.create :title => "title", :body => 'first body'
+    p.save
+    p.save
+    5.times do |i|
+      assert_page_title p, i
+    end
+  end
+
+  def test_version_max_limit
+    p = LockedPage.create :title => "title"
+    p.update_attributes(:title => "title1")
+    p.update_attributes(:title => "title2")
+    5.times do |i|
+      assert_page_title p, i, :lock_version
+      assert p.versions(true).size <= 2, "locked version can only store 2 versions"
+    end
+  end
+  
+  def test_track_changed_attributes_default_value
+    assert !Page.track_changed_attributes
+    assert LockedPage.track_changed_attributes
+    assert SpecialLockedPage.track_changed_attributes
+  end
+  
+  def test_version_order
+    assert_equal 23, pages(:welcome).versions.first.version
+    assert_equal 24, pages(:welcome).versions.last.version
+    assert_equal 23, pages(:welcome).find_versions.first.version
+    assert_equal 24, pages(:welcome).find_versions.last.version
+  end
+  
+  def test_track_changed_attributes    
+    p = LockedPage.create :title => "title"
+    assert_equal 1, p.lock_version
+    assert_equal 1, p.versions(true).size
+    
+    p.title = 'title'
+    assert !p.save_version?
+    p.save
+    assert_equal 2, p.lock_version # still increments version because of optimistic locking
+    assert_equal 1, p.versions(true).size
+    
+    p.title = 'updated title'
+    assert p.save_version?
+    p.save
+    assert_equal 3, p.lock_version
+    assert_equal 1, p.versions(true).size # version 1 deleted
+
+    p.title = 'updated title!'
+    assert p.save_version?
+    p.save
+    assert_equal 4, p.lock_version
+    assert_equal 2, p.versions(true).size # version 1 deleted
+  end
+    
+  def assert_page_title(p, i, version_field = :version)
+    p.title = "title#{i}"
+    p.save
+    assert_equal "title#{i}", p.title
+    assert_equal (i+4), p.send(version_field)
+  end
+  
+  def test_find_versions
+    assert_equal 2, locked_pages(:welcome).versions.size
+    assert_equal 1, locked_pages(:welcome).find_versions(:conditions => ['title LIKE ?', '%weblog%']).length
+    assert_equal 2, locked_pages(:welcome).find_versions(:conditions => ['title LIKE ?', '%web%']).length
+    assert_equal 0, locked_pages(:thinking).find_versions(:conditions => ['title LIKE ?', '%web%']).length
+    assert_equal 2, locked_pages(:welcome).find_versions.length
+  end
+  
+  def test_with_sequence
+    assert_equal 'widgets_seq', Widget.versioned_class.sequence_name
+    Widget.create :name => 'new widget'
+    Widget.create :name => 'new widget'
+    Widget.create :name => 'new widget'
+    assert_equal 3, Widget.count
+    assert_equal 3, Widget.versioned_class.count
+  end
+
+  def test_has_many_through
+    assert_equal [authors(:caged), authors(:mly)], pages(:welcome).authors
+  end
+
+  def test_has_many_through_with_custom_association
+    assert_equal [authors(:caged), authors(:mly)], pages(:welcome).revisors
+  end
+  
+  def test_referential_integrity
+    pages(:welcome).destroy
+    assert_equal 0, Page.count
+    assert_equal 0, Page::Version.count
+  end
+  
+  def test_association_options
+    association = Page.reflect_on_association(:versions)
+    options = association.options
+    assert_equal :delete_all, options[:dependent]
+    assert_equal 'version', options[:order]
+    
+    association = Widget.reflect_on_association(:versions)
+    options = association.options
+    assert_nil options[:dependent]
+    assert_equal 'version desc', options[:order]
+    assert_equal 'widget_id', options[:foreign_key]
+    
+    widget = Widget.create :name => 'new widget'
+    assert_equal 1, Widget.count
+    assert_equal 1, Widget.versioned_class.count
+    widget.destroy
+    assert_equal 0, Widget.count
+    assert_equal 1, Widget.versioned_class.count
+  end
+
+  def test_versioned_records_should_belong_to_parent
+    page = pages(:welcome)
+    page_version = page.versions.last
+    assert_equal page, page_version.page
+  end
+  
+  def test_unchanged_attributes
+    landmarks(:washington).attributes = landmarks(:washington).attributes
+    assert !landmarks(:washington).changed?
+  end
+  
+  def test_unchanged_string_attributes
+    landmarks(:washington).attributes = landmarks(:washington).attributes.inject({}) { |params, (key, value)| params.update key => value.to_s }
+    assert !landmarks(:washington).changed?
+  end
+end