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git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@1844 5ecf4fe2-1ee6-0310-87b1-e25e094e27de
147 lines
5.9 KiB
Ruby
147 lines
5.9 KiB
Ruby
require 'abstract_unit'
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require 'fixtures/post'
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require 'fixtures/comment'
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require 'fixtures/author'
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require 'fixtures/category'
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require 'fixtures/company'
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class EagerAssociationTest < Test::Unit::TestCase
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fixtures :posts, :comments, :authors, :categories, :categories_posts,
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:companies, :accounts
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def test_loading_with_one_association
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posts = Post.find(:all, :include => :comments)
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post = posts.find { |p| p.id == 1 }
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assert_equal 2, post.comments.size
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assert post.comments.include?(comments(:greetings))
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post = Post.find(:first, :include => :comments, :conditions => "posts.title = 'Welcome to the weblog'")
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assert_equal 2, post.comments.size
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assert post.comments.include?(comments(:greetings))
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end
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def test_with_ordering
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posts = Post.find(:all, :include => :comments, :order => "posts.id DESC")
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assert_equal posts(:sti_habtm), posts[0]
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assert_equal posts(:sti_post_and_comments), posts[1]
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assert_equal posts(:sti_comments), posts[2]
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assert_equal posts(:authorless), posts[3]
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assert_equal posts(:thinking), posts[4]
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assert_equal posts(:welcome), posts[5]
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end
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def test_loading_with_multiple_associations
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posts = Post.find(:all, :include => [ :comments, :author, :categories ], :order => "posts.id")
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assert_equal 2, posts.first.comments.size
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assert_equal 2, posts.first.categories.size
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assert posts.first.comments.include?(comments(:greetings))
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end
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def test_loading_from_an_association
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posts = authors(:david).posts.find(:all, :include => :comments, :order => "posts.id")
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assert_equal 2, posts.first.comments.size
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end
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def test_loading_with_no_associations
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assert_nil Post.find(posts(:authorless).id, :include => :author).author
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end
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def test_eager_association_loading_with_belongs_to
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comments = Comment.find(:all, :include => :post)
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assert_equal 9, comments.length
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titles = comments.map { |c| c.post.title }
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assert titles.include?(posts(:welcome).title)
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assert titles.include?(posts(:sti_post_and_comments).title)
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end
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def test_eager_association_loading_with_belongs_to_and_limit
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comments = Comment.find(:all, :include => :post, :limit => 5, :order => 'comments.id')
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assert_equal 5, comments.length
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assert_equal [1,2,3,5,6], comments.collect { |c| c.id }
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end
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def test_eager_association_loading_with_belongs_to_and_limit_and_conditions
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comments = Comment.find(:all, :include => :post, :conditions => 'post_id = 4', :limit => 3, :order => 'comments.id')
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assert_equal 3, comments.length
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assert_equal [5,6,7], comments.collect { |c| c.id }
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end
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def test_eager_association_loading_with_belongs_to_and_limit_and_offset
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comments = Comment.find(:all, :include => :post, :limit => 3, :offset => 2, :order => 'comments.id')
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assert_equal 3, comments.length
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assert_equal [3,5,6], comments.collect { |c| c.id }
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end
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def test_eager_association_loading_with_belongs_to_and_limit_and_offset_and_conditions
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comments = Comment.find(:all, :include => :post, :conditions => 'post_id = 4', :limit => 3, :offset => 1, :order => 'comments.id')
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assert_equal 3, comments.length
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assert_equal [6,7,8], comments.collect { |c| c.id }
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end
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def test_eager_association_loading_with_belongs_to_and_limit_and_multiple_associations
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posts = Post.find(:all, :include => [:author, :very_special_comment], :limit => 1)
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assert_equal 1, posts.length
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assert_equal [4], posts.collect { |p| p.id }
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end
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def test_eager_association_loading_with_belongs_to_and_limit_and_offset_and_multiple_associations
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posts = Post.find(:all, :include => [:author, :very_special_comment], :limit => 1, :offset => 1)
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assert_equal 0, posts.length
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assert_equal [], posts
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end
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def test_eager_association_raise_on_limit
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assert_raises(ActiveRecord::ConfigurationError) { Post.find(:all, :include => [:author, :comments], :limit => 1) }
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end
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def test_eager_association_loading_with_habtm
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posts = Post.find(:all, :include => :categories, :order => "posts.id")
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assert_equal 2, posts[0].categories.size
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assert_equal 1, posts[1].categories.size
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assert_equal 0, posts[2].categories.size
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assert posts[0].categories.include?(categories(:technology))
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assert posts[1].categories.include?(categories(:general))
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end
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def test_eager_with_inheritance
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posts = SpecialPost.find(:all, :include => [ :comments ])
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end
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def test_eager_has_one_with_association_inheritance
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post = Post.find(4, :include => [ :very_special_comment ])
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assert_equal "VerySpecialComment", post.very_special_comment.class.to_s
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end
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def test_eager_has_many_with_association_inheritance
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post = Post.find(4, :include => [ :special_comments ])
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post.special_comments.each do |special_comment|
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assert_equal "SpecialComment", special_comment.class.to_s
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end
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end
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def test_eager_habtm_with_association_inheritance
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post = Post.find(6, :include => [ :special_categories ])
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assert_equal 1, post.special_categories.size
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post.special_categories.each do |special_category|
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assert_equal "SpecialCategory", special_category.class.to_s
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end
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end
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def test_eager_with_has_one_dependent_does_not_destroy_dependent
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assert_not_nil companies(:first_firm).account
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f = Firm.find(:first, :include => :account,
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:conditions => ["companies.name = ?", "37signals"])
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assert_not_nil f.account
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assert_equal companies(:first_firm, :reload).account, f.account
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end
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def test_eager_with_invalid_association_reference
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assert_raises(ActiveRecord::ConfigurationError, "Association was not found; perhaps you misspelled it? You specified :include => :monkeys") {
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post = Post.find(6, :include=>[ :monkeys ])
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}
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assert_raises(ActiveRecord::ConfigurationError, "Association was not found; perhaps you misspelled it? You specified :include => :monkeys, :elephants") {
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post = Post.find(6, :include=>[ :monkeys, :elephants ])
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}
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end
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end
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