440 lines
14 KiB
Ruby
440 lines
14 KiB
Ruby
require "cases/helper"
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require 'models/developer'
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require 'models/project'
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require 'models/company'
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require 'models/topic'
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require 'models/reply'
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require 'models/computer'
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require 'models/customer'
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require 'models/order'
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require 'models/post'
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require 'models/author'
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require 'models/tag'
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require 'models/tagging'
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require 'models/comment'
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require 'models/sponsor'
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require 'models/member'
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require 'models/essay'
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require 'models/subscriber'
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require "models/pirate"
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require "models/bird"
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require "models/parrot"
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if ActiveRecord::IdentityMap.enabled?
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class IdentityMapTest < ActiveRecord::TestCase
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fixtures :accounts, :companies, :developers, :projects, :topics,
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:developers_projects, :computers, :authors, :author_addresses,
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:posts, :tags, :taggings, :comments, :subscribers
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##############################################################################
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# Basic tests checking if IM is functioning properly on basic find operations#
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##############################################################################
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def test_find_id
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assert_same(Client.find(3), Client.find(3))
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end
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def test_find_id_without_identity_map
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ActiveRecord::IdentityMap.without do
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assert_not_same(Client.find(3), Client.find(3))
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end
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end
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def test_find_id_use_identity_map
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ActiveRecord::IdentityMap.enabled = false
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ActiveRecord::IdentityMap.use do
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assert_same(Client.find(3), Client.find(3))
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end
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ActiveRecord::IdentityMap.enabled = true
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end
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def test_find_pkey
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assert_same(
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Subscriber.find('swistak'),
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Subscriber.find('swistak')
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)
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end
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def test_find_by_id
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assert_same(
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Client.find_by_id(3),
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Client.find_by_id(3)
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)
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end
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def test_find_by_string_and_numeric_id
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assert_same(
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Client.find_by_id("3"),
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Client.find_by_id(3)
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)
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end
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def test_find_by_pkey
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assert_same(
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Subscriber.find_by_nick('swistak'),
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Subscriber.find_by_nick('swistak')
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)
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end
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def test_find_first_id
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assert_same(
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Client.find(:first, :conditions => {:id => 1}),
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Client.find(:first, :conditions => {:id => 1})
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)
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end
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def test_find_first_pkey
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assert_same(
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Subscriber.find(:first, :conditions => {:nick => 'swistak'}),
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Subscriber.find(:first, :conditions => {:nick => 'swistak'})
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)
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end
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def test_queries_are_not_executed_when_finding_by_id
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Post.find 1
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assert_no_queries do
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Post.find 1
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end
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end
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##############################################################################
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# Tests checking if IM is functioning properly on more advanced finds #
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# and associations #
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##############################################################################
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def test_owner_object_is_associated_from_identity_map
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post = Post.find(1)
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comment = post.comments.first
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assert_no_queries do
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comment.post
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end
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assert_same post, comment.post
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end
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def test_associated_object_are_assigned_from_identity_map
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post = Post.find(1)
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post.comments.each do |comment|
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assert_same post, comment.post
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assert_equal post.object_id, comment.post.object_id
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end
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end
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def test_creation
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t1 = Topic.create("title" => "t1")
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t2 = Topic.find(t1.id)
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assert_same(t1, t2)
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end
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##############################################################################
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# Tests checking if IM is functioning properly on classes with multiple #
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# types of inheritance #
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##############################################################################
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def test_inherited_without_type_attribute_without_identity_map
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ActiveRecord::IdentityMap.without do
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p1 = DestructivePirate.create!(:catchphrase => "I'm not a regular Pirate")
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p2 = Pirate.find(p1.id)
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assert_not_same(p1, p2)
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end
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end
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def test_inherited_with_type_attribute_without_identity_map
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ActiveRecord::IdentityMap.without do
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c = comments(:sub_special_comment)
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c1 = SubSpecialComment.find(c.id)
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c2 = Comment.find(c.id)
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assert_same(c1.class, c2.class)
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end
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end
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def test_inherited_without_type_attribute
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p1 = DestructivePirate.create!(:catchphrase => "I'm not a regular Pirate")
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p2 = Pirate.find(p1.id)
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assert_not_same(p1, p2)
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end
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def test_inherited_with_type_attribute
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c = comments(:sub_special_comment)
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c1 = SubSpecialComment.find(c.id)
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c2 = Comment.find(c.id)
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assert_same(c1, c2)
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end
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##############################################################################
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# Tests checking dirty attribute behavior with IM #
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##############################################################################
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def test_loading_new_instance_should_not_update_dirty_attributes
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swistak = Subscriber.find(:first, :conditions => {:nick => 'swistak'})
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swistak.name = "Swistak Sreberkowiec"
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assert_equal(["name"], swistak.changed)
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assert_equal({"name" => ["Marcin Raczkowski", "Swistak Sreberkowiec"]}, swistak.changes)
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assert swistak.name_changed?
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assert_equal("Swistak Sreberkowiec", swistak.name)
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end
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def test_loading_new_instance_should_change_dirty_attribute_original_value
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swistak = Subscriber.find(:first, :conditions => {:nick => 'swistak'})
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swistak.name = "Swistak Sreberkowiec"
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Subscriber.update_all({:name => "Raczkowski Marcin"}, {:name => "Marcin Raczkowski"})
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assert_equal({"name"=>["Marcin Raczkowski", "Swistak Sreberkowiec"]}, swistak.changes)
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assert_equal("Swistak Sreberkowiec", swistak.name)
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end
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def test_loading_new_instance_should_remove_dirt
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swistak = Subscriber.find(:first, :conditions => {:nick => 'swistak'})
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swistak.name = "Swistak Sreberkowiec"
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assert_equal({"name" => ["Marcin Raczkowski", "Swistak Sreberkowiec"]}, swistak.changes)
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Subscriber.update_all({:name => "Swistak Sreberkowiec"}, {:name => "Marcin Raczkowski"})
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assert_equal("Swistak Sreberkowiec", swistak.name)
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assert_equal({"name"=>["Marcin Raczkowski", "Swistak Sreberkowiec"]}, swistak.changes)
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assert swistak.name_changed?
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end
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def test_has_many_associations
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pirate = Pirate.create!(:catchphrase => "Don' botharrr talkin' like one, savvy?")
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pirate.birds.create!(:name => 'Posideons Killer')
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pirate.birds.create!(:name => 'Killer bandita Dionne')
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posideons, _ = pirate.birds
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pirate.reload
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pirate.birds_attributes = [{ :id => posideons.id, :name => 'Grace OMalley' }]
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assert_equal 'Grace OMalley', pirate.birds.to_a.find { |r| r.id == posideons.id }.name
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end
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def test_changing_associations
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post1 = Post.create("title" => "One post", "body" => "Posting...")
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post2 = Post.create("title" => "Another post", "body" => "Posting... Again...")
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comment = Comment.new("body" => "comment")
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comment.post = post1
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assert comment.save
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assert_same(post1.comments.first, comment)
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comment.post = post2
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assert comment.save
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assert_same(post2.comments.first, comment)
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assert_equal(0, post1.comments.size)
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end
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def test_im_with_polymorphic_has_many_going_through_join_model_with_custom_select_and_joins
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tag = posts(:welcome).tags.first
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tag_with_joins_and_select = posts(:welcome).tags.add_joins_and_select.first
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assert_same(tag, tag_with_joins_and_select)
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assert_nothing_raised(NoMethodError, "Joins/select was not loaded") { tag.author_id }
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end
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##############################################################################
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# Tests checking Identity Map behavior with preloaded associations, joins, #
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# includes etc. #
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##############################################################################
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def test_find_with_preloaded_associations
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assert_queries(2) do
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posts = Post.preload(:comments).order('posts.id')
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assert posts.first.comments.first
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end
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# With IM we'll retrieve post object from previous query, it'll have comments
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# already preloaded from first call
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assert_queries(1) do
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posts = Post.preload(:comments).order('posts.id')
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assert posts.first.comments.first
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end
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assert_queries(2) do
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posts = Post.preload(:author).order('posts.id')
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assert posts.first.author
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end
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# With IM we'll retrieve post object from previous query, it'll have comments
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# already preloaded from first call
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assert_queries(1) do
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posts = Post.preload(:author).order('posts.id')
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assert posts.first.author
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end
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assert_queries(1) do
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posts = Post.preload(:author, :comments).order('posts.id')
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assert posts.first.author
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assert posts.first.comments.first
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end
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end
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def test_find_with_included_associations
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assert_queries(2) do
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posts = Post.includes(:comments).order('posts.id')
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assert posts.first.comments.first
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end
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assert_queries(1) do
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posts = Post.scoped.includes(:comments).order('posts.id')
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assert posts.first.comments.first
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end
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assert_queries(2) do
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posts = Post.includes(:author).order('posts.id')
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assert posts.first.author
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end
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assert_queries(1) do
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posts = Post.includes(:author, :comments).order('posts.id')
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assert posts.first.author
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assert posts.first.comments.first
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end
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end
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def test_eager_loading_with_conditions_on_joined_table_preloads
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posts = Post.find(:all, :select => 'distinct posts.*', :include => :author, :joins => [:comments], :conditions => "comments.body like 'Thank you%'", :order => 'posts.id')
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assert_equal [posts(:welcome)], posts
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assert_equal authors(:david), assert_no_queries { posts[0].author}
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assert_same posts.first.author, Author.first
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posts = Post.find(:all, :select => 'distinct posts.*', :include => :author, :joins => [:comments], :conditions => "comments.body like 'Thank you%'", :order => 'posts.id')
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assert_equal [posts(:welcome)], posts
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assert_equal authors(:david), assert_no_queries { posts[0].author}
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assert_same posts.first.author, Author.first
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posts = Post.find(:all, :include => :author, :joins => {:taggings => :tag}, :conditions => "tags.name = 'General'", :order => 'posts.id')
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assert_equal posts(:welcome, :thinking), posts
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assert_same posts.first.author, Author.first
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posts = Post.find(:all, :include => :author, :joins => {:taggings => {:tag => :taggings}}, :conditions => "taggings_tags.super_tag_id=2", :order => 'posts.id')
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assert_equal posts(:welcome, :thinking), posts
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assert_same posts.first.author, Author.first
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end
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def test_eager_loading_with_conditions_on_string_joined_table_preloads
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posts = assert_queries(2) do
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Post.find(:all, :select => 'distinct posts.*', :include => :author, :joins => "INNER JOIN comments on comments.post_id = posts.id", :conditions => "comments.body like 'Thank you%'", :order => 'posts.id')
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end
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assert_equal [posts(:welcome)], posts
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assert_equal authors(:david), assert_no_queries { posts[0].author}
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posts = assert_queries(1) do
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Post.find(:all, :select => 'distinct posts.*', :include => :author, :joins => ["INNER JOIN comments on comments.post_id = posts.id"], :conditions => "comments.body like 'Thank you%'", :order => 'posts.id')
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end
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assert_equal [posts(:welcome)], posts
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assert_equal authors(:david), assert_no_queries { posts[0].author}
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end
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##############################################################################
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# Behaviour related to saving failures
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##############################################################################
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def test_reload_object_if_save_failed
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developer = Developer.first
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developer.salary = 0
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assert !developer.save
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same_developer = Developer.first
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assert_not_same developer, same_developer
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assert_not_equal 0, same_developer.salary
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assert_not_equal developer.salary, same_developer.salary
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end
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def test_reload_object_if_forced_save_failed
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developer = Developer.first
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developer.salary = 0
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assert_raise(ActiveRecord::RecordInvalid) { developer.save! }
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same_developer = Developer.first
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assert_not_same developer, same_developer
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assert_not_equal 0, same_developer.salary
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assert_not_equal developer.salary, same_developer.salary
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end
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def test_reload_object_if_update_attributes_fails
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developer = Developer.first
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developer.salary = 0
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assert !developer.update_attributes(:salary => 0)
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same_developer = Developer.first
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assert_not_same developer, same_developer
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assert_not_equal 0, same_developer.salary
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assert_not_equal developer.salary, same_developer.salary
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end
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##############################################################################
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# Behaviour of readonly, frozen, destroyed
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##############################################################################
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def test_find_using_identity_map_respects_readonly_when_loading_associated_object_first
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author = Author.first
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readonly_comment = author.readonly_comments.first
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comment = Comment.first
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assert !comment.readonly?
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assert readonly_comment.readonly?
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assert_raise(ActiveRecord::ReadOnlyRecord) {readonly_comment.save}
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assert comment.save
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end
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def test_find_using_identity_map_respects_readonly
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comment = Comment.first
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assert !comment.readonly?
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author = Author.first
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readonly_comment = author.readonly_comments.first
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assert readonly_comment.readonly?
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assert_raise(ActiveRecord::ReadOnlyRecord) {readonly_comment.save}
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assert comment.save
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end
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def test_find_using_select_and_identity_map
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author_id, author = Author.select('id').first, Author.first
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assert_equal author_id, author
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assert_same author_id, author
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assert_not_nil author.name
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post, post_id = Post.first, Post.select('id').first
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assert_equal post_id, post
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assert_same post_id, post
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assert_not_nil post.title
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end
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# Currently AR is not allowing changing primary key (see Persistence#update)
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# So we ignore it. If this changes, this test needs to be uncommented.
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# def test_updating_of_pkey
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# assert client = Client.find(3),
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# client.update_attribute(:id, 666)
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#
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# assert Client.find(666)
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# assert_same(client, Client.find(666))
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#
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# s = Subscriber.find_by_nick('swistak')
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# assert s.update_attribute(:nick, 'swistakTheJester')
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# assert_equal('swistakTheJester', s.nick)
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#
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# assert stj = Subscriber.find_by_nick('swistakTheJester')
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# assert_same(s, stj)
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# end
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end
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end
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