require 'abstract_unit'
require 'fixtures/post'
require 'fixtures/comment'
require 'fixtures/author'
require 'fixtures/category'
class EagerAssociationTest < Test::Unit::TestCase
fixtures :posts, :comments, :authors, :categories, :categories_posts
def test_loading_with_one_association
posts = Post.find(:all, :include => :comments)
assert_equal 2, posts.first.comments.size
assert posts.first.comments.include?(@greetings)
post = Post.find(:first, :include => :comments, :conditions => "posts.title = 'Welcome to the weblog'")
assert_equal 2, post.comments.size
assert post.comments.include?(@greetings)
end
def test_with_ordering
posts = Post.find(:all, :include => :comments, :order => "posts.id DESC")
assert_equal @authorless, posts[0]
assert_equal @thinking, posts[1]
assert_equal @welcome, posts[2]
end
def test_loading_with_multiple_associations
posts = Post.find(:all, :include => [ :comments, :author, :categories ], :order => "posts.id")
assert_equal 2, posts.first.comments.size
assert_equal 2, posts.first.categories.size
assert posts.first.comments.include?(@greetings)
end
def test_loading_from_an_association
posts = @david.posts.find(:all, :include => :comments, :order => "posts.id")
assert_equal 2, posts.first.comments.size
end
def test_loading_with_no_associations
assert_nil Post.find(@authorless.id, :include => :author).author
end
def test_eager_association_loading_with_belongs_to
comments = Comment.find(:all, :include => :post)
assert_equal @welcome.title, comments.first.post.title
assert_equal @thinking.title, comments.last.post.title
end
def test_eager_association_loading_with_habtm
posts = Post.find(:all, :include => :categories, :order => "posts.id")
assert_equal 2, posts[0].categories.size
assert_equal 1, posts[1].categories.size
assert_equal 0, posts[2].categories.size
assert posts[0].categories.include?(@technology)
assert posts[1].categories.include?(@general)
end
def test_eager_with_inheritance
posts = SpecialPost.find(:all, :include => [ :comments ])
end
end
