15 files changed, 63 insertions, 3 deletions
diff --git a/activerecord/test/models/author.rb b/activerecord/test/models/author.rb
index 0d90cbb110..38b983eda0 100644
--- a/activerecord/test/models/author.rb
+++ b/activerecord/test/models/author.rb
@@ -75,7 +75,7 @@ class Author < ActiveRecord::Base
   has_many :posts_with_multiple_callbacks, :class_name => "Post",
            :before_add => [:log_before_adding, Proc.new {|o, r| o.post_log << "before_adding_proc#{r.id || '<new>'}"}],
            :after_add  => [:log_after_adding,  Proc.new {|o, r| o.post_log << "after_adding_proc#{r.id || '<new>'}"}]
-  has_many :unchangable_posts, :class_name => "Post", :before_add => :raise_exception, :after_add => :log_after_adding
+  has_many :unchangeable_posts, :class_name => "Post", :before_add => :raise_exception, :after_add => :log_after_adding
 
   has_many :categorizations
   has_many :categories, :through => :categorizations
@@ -144,6 +144,14 @@ class Author < ActiveRecord::Base
 
   has_many :posts_with_signature, ->(record) { where("posts.title LIKE ?", "%by #{record.name.downcase}%") }, class_name: "Post"
 
+  has_many :posts_with_extension, -> { order(:title) }, class_name: "Post" do
+    def extension_method; end
+  end
+
+  has_many :posts_with_extension_and_instance, ->(record) { order(:title) }, class_name: "Post" do
+    def extension_method; end
+  end
+
   attr_accessor :post_log
   after_initialize :set_post_log
 
diff --git a/activerecord/test/models/book.rb b/activerecord/test/models/book.rb
index 1927191393..e43e5c3901 100644
--- a/activerecord/test/models/book.rb
+++ b/activerecord/test/models/book.rb
@@ -14,6 +14,7 @@ class Book < ActiveRecord::Base
   enum author_visibility: [:visible, :invisible], _prefix: true
   enum illustrator_visibility: [:visible, :invisible], _prefix: true
   enum font_size: [:small, :medium, :large], _prefix: :with, _suffix: true
+  enum cover: { hard: 'hard', soft: 'soft' }
 
   def published!
     super
diff --git a/activerecord/test/models/car.rb b/activerecord/test/models/car.rb
index 778c22b1f6..0f37e9a289 100644
--- a/activerecord/test/models/car.rb
+++ b/activerecord/test/models/car.rb
@@ -12,6 +12,8 @@ class Car < ActiveRecord::Base
   has_many :engines, :dependent => :destroy, inverse_of: :my_car
   has_many :wheels, :as => :wheelable, :dependent => :destroy
 
+  has_many :price_estimates, :as => :estimate_of
+
   scope :incl_tyres, -> { includes(:tyres) }
   scope :incl_engines, -> { includes(:engines) }
 
diff --git a/activerecord/test/models/cat.rb b/activerecord/test/models/cat.rb
new file mode 100644
index 0000000000..dfdde18641
--- /dev/null
+++ b/activerecord/test/models/cat.rb
@@ -0,0 +1,10 @@
+class Cat < ActiveRecord::Base
+  self.abstract_class = true
+
+  enum gender: [:female, :male]
+
+  default_scope -> { where(is_vegetarian: false) }
+end
+
+class Lion < Cat
+end
diff --git a/activerecord/test/models/chef.rb b/activerecord/test/models/chef.rb
index 698a52e045..9d3dd01016 100644
--- a/activerecord/test/models/chef.rb
+++ b/activerecord/test/models/chef.rb
@@ -2,3 +2,7 @@ class Chef < ActiveRecord::Base
   belongs_to :employable, polymorphic: true
   has_many :recipes
 end
+
+class ChefList < Chef
+  belongs_to :employable_list, polymorphic: true
+end
diff --git a/activerecord/test/models/comment.rb b/activerecord/test/models/comment.rb
index b38b17e90e..dcc5c5a310 100644
--- a/activerecord/test/models/comment.rb
+++ b/activerecord/test/models/comment.rb
@@ -14,6 +14,7 @@ class Comment < ActiveRecord::Base
   has_many :ratings
 
   belongs_to :first_post, :foreign_key => :post_id
+  belongs_to :special_post_with_default_scope, foreign_key: :post_id
 
   has_many :children, :class_name => 'Comment', :foreign_key => :parent_id
   belongs_to :parent, :class_name => 'Comment', :counter_cache => :children_count
diff --git a/activerecord/test/models/customer.rb b/activerecord/test/models/customer.rb
index afe4b3d707..3338aaf7e1 100644
--- a/activerecord/test/models/customer.rb
+++ b/activerecord/test/models/customer.rb
@@ -64,7 +64,12 @@ class Fullname
 
   def self.parse(str)
     return nil unless str
-    new(*str.to_s.split)
+
+    if str.is_a?(Hash)
+      new(str[:first], str[:last])
+    else
+      new(*str.to_s.split)
+    end
   end
 
   def initialize(first, last = nil)
diff --git a/activerecord/test/models/hotel.rb b/activerecord/test/models/hotel.rb
index 491f8dfde3..9c90ffcff4 100644
--- a/activerecord/test/models/hotel.rb
+++ b/activerecord/test/models/hotel.rb
@@ -3,5 +3,9 @@ class Hotel < ActiveRecord::Base
   has_many :chefs, through: :departments
   has_many :cake_designers, source_type: 'CakeDesigner', source: :employable, through: :chefs
   has_many :drink_designers, source_type: 'DrinkDesigner', source: :employable, through: :chefs
+
+  has_many :chef_lists, as: :employable_list
+  has_many :mocktail_designers, through: :chef_lists, source: :employable, :source_type => "MocktailDesigner"
+
   has_many :recipes, through: :chefs
 end
diff --git a/activerecord/test/models/mocktail_designer.rb b/activerecord/test/models/mocktail_designer.rb
new file mode 100644
index 0000000000..77b44651a3
--- /dev/null
+++ b/activerecord/test/models/mocktail_designer.rb
@@ -0,0 +1,2 @@
+class MocktailDesigner < DrinkDesigner
+end
diff --git a/activerecord/test/models/notification.rb b/activerecord/test/models/notification.rb
index b4b4b8f1b6..82edc64b68 100644
--- a/activerecord/test/models/notification.rb
+++ b/activerecord/test/models/notification.rb
@@ -1,2 +1,3 @@
 class Notification < ActiveRecord::Base
+  validates_presence_of :message
 end
diff --git a/activerecord/test/models/owner.rb b/activerecord/test/models/owner.rb
index cedb774b10..ce8242cf2f 100644
--- a/activerecord/test/models/owner.rb
+++ b/activerecord/test/models/owner.rb
@@ -1,7 +1,8 @@
 class Owner < ActiveRecord::Base
   self.primary_key = :owner_id
   has_many :pets, -> { order 'pets.name desc' }
-  has_many :toys, :through => :pets
+  has_many :toys, through: :pets
+  has_many :persons, through: :pets
 
   belongs_to :last_pet, class_name: 'Pet'
   scope :including_last_pet, -> {
diff --git a/activerecord/test/models/pet.rb b/activerecord/test/models/pet.rb
index f7970d7aab..53489fa1b3 100644
--- a/activerecord/test/models/pet.rb
+++ b/activerecord/test/models/pet.rb
@@ -4,6 +4,9 @@ class Pet < ActiveRecord::Base
   self.primary_key = :pet_id
   belongs_to :owner, :touch => true
   has_many :toys
+  has_many :pet_treasures
+  has_many :treasures, through: :pet_treasures
+  has_many :persons, through: :treasures, source: :looter, source_type: 'Person'
 
   class << self
     attr_accessor :after_destroy_output
diff --git a/activerecord/test/models/pet_treasure.rb b/activerecord/test/models/pet_treasure.rb
new file mode 100644
index 0000000000..1fe7807ffe
--- /dev/null
+++ b/activerecord/test/models/pet_treasure.rb
@@ -0,0 +1,6 @@
+class PetTreasure < ActiveRecord::Base
+  self.table_name = "pets_treasures"
+
+  belongs_to :pet
+  belongs_to :treasure
+end
diff --git a/activerecord/test/models/tag.rb b/activerecord/test/models/tag.rb
index 80d4725f7e..b48b9a2155 100644
--- a/activerecord/test/models/tag.rb
+++ b/activerecord/test/models/tag.rb
@@ -5,3 +5,9 @@ class Tag < ActiveRecord::Base
 
   has_many :tagged_posts, :through => :taggings, :source => 'taggable', :source_type => 'Post'
 end
+
+class OrderedTag < Tag
+  self.table_name = "tags"
+
+  has_many :taggings, -> { order('taggings.id DESC') }, foreign_key: 'tag_id'
+end
diff --git a/activerecord/test/models/uuid_item.rb b/activerecord/test/models/uuid_item.rb
new file mode 100644
index 0000000000..2353e40213
--- /dev/null
+++ b/activerecord/test/models/uuid_item.rb
@@ -0,0 +1,6 @@
+class UuidItem < ActiveRecord::Base
+end
+
+class UuidValidatingItem < UuidItem
+  validates_uniqueness_of :uuid
+end