JezK
Edit File: cascaded_eager_loading_test.rb
require "cases/helper" require 'models/post' require 'models/comment' require 'models/author' require 'models/category' require 'models/categorization' require 'models/company' require 'models/topic' require 'models/reply' class CascadedEagerLoadingTest < ActiveRecord::TestCase fixtures :authors, :mixins, :companies, :posts, :topics, :accounts, :comments, :categorizations def test_eager_association_loading_with_cascaded_two_levels authors = Author.find(:all, :include=>{:posts=>:comments}, :order=>"authors.id") assert_equal 2, authors.size assert_equal 5, authors[0].posts.size assert_equal 1, authors[1].posts.size assert_equal 9, authors[0].posts.collect{|post| post.comments.size }.inject(0){|sum,i| sum+i} end def test_eager_association_loading_with_cascaded_two_levels_and_one_level authors = Author.find(:all, :include=>[{:posts=>:comments}, :categorizations], :order=>"authors.id") assert_equal 2, authors.size assert_equal 5, authors[0].posts.size assert_equal 1, authors[1].posts.size assert_equal 9, authors[0].posts.collect{|post| post.comments.size }.inject(0){|sum,i| sum+i} assert_equal 1, authors[0].categorizations.size assert_equal 2, authors[1].categorizations.size end def test_eager_association_loading_with_cascaded_two_levels_with_two_has_many_associations authors = Author.find(:all, :include=>{:posts=>[:comments, :categorizations]}, :order=>"authors.id") assert_equal 2, authors.size assert_equal 5, authors[0].posts.size assert_equal 1, authors[1].posts.size assert_equal 9, authors[0].posts.collect{|post| post.comments.size }.inject(0){|sum,i| sum+i} end def test_eager_association_loading_with_cascaded_two_levels_and_self_table_reference authors = Author.find(:all, :include=>{:posts=>[:comments, :author]}, :order=>"authors.id") assert_equal 2, authors.size assert_equal 5, authors[0].posts.size assert_equal authors(:david).name, authors[0].name assert_equal [authors(:david).name], authors[0].posts.collect{|post| post.author.name}.uniq end def test_eager_association_loading_with_cascaded_two_levels_with_condition authors = Author.find(:all, :include=>{:posts=>:comments}, :conditions=>"authors.id=1", :order=>"authors.id") assert_equal 1, authors.size assert_equal 5, authors[0].posts.size end def test_eager_association_loading_with_cascaded_three_levels_by_ping_pong firms = Firm.find(:all, :include=>{:account=>{:firm=>:account}}, :order=>"companies.id") assert_equal 2, firms.size assert_equal firms.first.account, firms.first.account.firm.account assert_equal companies(:first_firm).account, assert_no_queries { firms.first.account.firm.account } assert_equal companies(:first_firm).account.firm.account, assert_no_queries { firms.first.account.firm.account } end def test_eager_association_loading_with_has_many_sti topics = Topic.find(:all, :include => :replies, :order => 'topics.id') first, second, = topics(:first).replies.size, topics(:second).replies.size assert_no_queries do assert_equal first, topics[0].replies.size assert_equal second, topics[1].replies.size end end def test_eager_association_loading_with_has_many_sti_and_subclasses silly = SillyReply.new(:title => "gaga", :content => "boo-boo", :parent_id => 1) silly.parent_id = 1 assert silly.save topics = Topic.find(:all, :include => :replies, :order => 'topics.id, replies_topics.id') assert_no_queries do assert_equal 2, topics[0].replies.size assert_equal 0, topics[1].replies.size end end def test_eager_association_loading_with_belongs_to_sti replies = Reply.find(:all, :include => :topic, :order => 'topics.id') assert replies.include?(topics(:second)) assert !replies.include?(topics(:first)) assert_equal topics(:first), assert_no_queries { replies.first.topic } end def test_eager_association_loading_with_multiple_stis_and_order author = Author.find(:first, :include => { :posts => [ :special_comments , :very_special_comment ] }, :order => 'authors.name, comments.body, very_special_comments_posts.body', :conditions => 'posts.id = 4') assert_equal authors(:david), author assert_no_queries do author.posts.first.special_comments author.posts.first.very_special_comment end end def test_eager_association_loading_of_stis_with_multiple_references authors = Author.find(:all, :include => { :posts => { :special_comments => { :post => [ :special_comments, :very_special_comment ] } } }, :order => 'comments.body, very_special_comments_posts.body', :conditions => 'posts.id = 4') assert_equal [authors(:david)], authors assert_no_queries do authors.first.posts.first.special_comments.first.post.special_comments authors.first.posts.first.special_comments.first.post.very_special_comment end end def test_eager_association_loading_where_first_level_returns_nil authors = Author.find(:all, :include => {:post_about_thinking => :comments}, :order => 'authors.id DESC') assert_equal [authors(:mary), authors(:david)], authors assert_no_queries do authors[1].post_about_thinking.comments.first end end end require 'models/vertex' require 'models/edge' class CascadedEagerLoadingTest < ActiveRecord::TestCase fixtures :edges, :vertices def test_eager_association_loading_with_recursive_cascading_four_levels_has_many_through source = Vertex.find(:first, :include=>{:sinks=>{:sinks=>{:sinks=>:sinks}}}, :order => 'vertices.id') assert_equal vertices(:vertex_4), assert_no_queries { source.sinks.first.sinks.first.sinks.first } end def test_eager_association_loading_with_recursive_cascading_four_levels_has_and_belongs_to_many sink = Vertex.find(:first, :include=>{:sources=>{:sources=>{:sources=>:sources}}}, :order => 'vertices.id DESC') assert_equal vertices(:vertex_1), assert_no_queries { sink.sources.first.sources.first.sources.first.sources.first } end end