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require 'abstract_unit'
require 'fixtures/post'
require 'fixtures/comment'
require 'fixtures/author'
require 'fixtures/category'
require 'fixtures/company'
class EagerAssociationTest < Test::Unit::TestCase
fixtures :posts, :comments, :authors, :categories, :categories_posts,
:companies, :accounts
def test_loading_with_one_association
posts = Post.find(:all, :include => :comments)
assert_equal 2, posts.first.comments.size
assert posts.first.comments.include?(comments(:greetings))
post = Post.find(:first, :include => :comments, :conditions => "posts.title = 'Welcome to the weblog'")
assert_equal 2, post.comments.size
assert post.comments.include?(comments(:greetings))
end
def test_with_ordering
posts = Post.find(:all, :include => :comments, :order => "posts.id DESC")
assert_equal posts(:authorless), posts[0]
assert_equal posts(:thinking), posts[1]
assert_equal posts(: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?(comments(:greetings))
end
def test_loading_from_an_association
posts = authors(: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(posts(:authorless).id, :include => :author).author
end
def test_eager_association_loading_with_belongs_to
comments = Comment.find(:all, :include => :post)
titles = comments.map { |c| c.post.title }
assert titles.include?(posts(:welcome).title)
assert titles.include?(posts(:thinking).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?(categories(:technology))
assert posts[1].categories.include?(categories(:general))
end
def test_eager_with_inheritance
posts = SpecialPost.find(:all, :include => [ :comments ])
end
def test_eager_with_has_one_dependent_does_not_destroy_dependent
assert_not_nil companies(:first_firm).account
f = Firm.find(:first, :include => :account,
:conditions => ["companies.name = ?", "37signals"])
assert_not_nil companies(:first_firm, :reload).account
end
end
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