require "cases/helper" require 'models/post' require 'models/topic' require 'models/comment' require 'models/reply' require 'models/author' class NamedScopeTest < ActiveRecord::TestCase fixtures :posts, :authors, :topics, :comments def test_implements_enumerable assert !Topic.find(:all).empty? assert_equal Topic.find(:all), Topic.base assert_equal Topic.find(:all), Topic.base.to_a assert_equal Topic.find(:first), Topic.base.first assert_equal Topic.find(:all), Topic.base.each { |i| i } end def test_found_items_are_cached Topic.columns all_posts = Topic.base assert_queries(1) do all_posts.collect all_posts.collect end end def test_reload_expires_cache_of_found_items all_posts = Topic.base all_posts.inspect new_post = Topic.create! assert !all_posts.include?(new_post) assert all_posts.reload.include?(new_post) end def test_delegates_finds_and_calculations_to_the_base_class assert !Topic.find(:all).empty? assert_equal Topic.find(:all), Topic.base.find(:all) assert_equal Topic.find(:first), Topic.base.find(:first) assert_equal Topic.count, Topic.base.count assert_equal Topic.average(:replies_count), Topic.base.average(:replies_count) end def test_subclasses_inherit_scopes assert Topic.scopes.include?(:base) assert Reply.scopes.include?(:base) assert_equal Reply.find(:all), Reply.base end def test_scopes_with_options_limit_finds_to_those_matching_the_criteria_specified assert !Topic.find(:all, :conditions => {:approved => true}).empty? assert_equal Topic.find(:all, :conditions => {:approved => true}), Topic.approved assert_equal Topic.count(:conditions => {:approved => true}), Topic.approved.count end def test_scopes_with_string_name_can_be_composed # NOTE that scopes defined with a string as a name worked on their own # but when called on another scope the other scope was completely replaced assert_equal Topic.replied.approved, Topic.replied.approved_as_string end def test_scopes_are_composable assert_equal (approved = Topic.find(:all, :conditions => {:approved => true})), Topic.approved assert_equal (replied = Topic.find(:all, :conditions => 'replies_count > 0')), Topic.replied assert !(approved == replied) assert !(approved & replied).empty? assert_equal approved & replied, Topic.approved.replied end def test_procedural_scopes topics_written_before_the_third = Topic.find(:all, :conditions => ['written_on < ?', topics(:third).written_on]) topics_written_before_the_second = Topic.find(:all, :conditions => ['written_on < ?', topics(:second).written_on]) assert_not_equal topics_written_before_the_second, topics_written_before_the_third assert_equal topics_written_before_the_third, Topic.written_before(topics(:third).written_on) assert_equal topics_written_before_the_second, Topic.written_before(topics(:second).written_on) end def test_extensions assert_equal 1, Topic.anonymous_extension.one assert_equal 2, Topic.named_extension.two end def test_multiple_extensions assert_equal 2, Topic.multiple_extensions.extension_two assert_equal 1, Topic.multiple_extensions.extension_one end def test_has_many_associations_have_access_to_named_scopes assert_not_equal Post.containing_the_letter_a, authors(:david).posts assert !Post.containing_the_letter_a.empty? assert_equal authors(:david).posts & Post.containing_the_letter_a, authors(:david).posts.containing_the_letter_a end def test_has_many_through_associations_have_access_to_named_scopes assert_not_equal Comment.containing_the_letter_e, authors(:david).comments assert !Comment.containing_the_letter_e.empty? assert_equal authors(:david).comments & Comment.containing_the_letter_e, authors(:david).comments.containing_the_letter_e end def test_active_records_have_scope_named__all__ assert !Topic.find(:all).empty? assert_equal Topic.find(:all), Topic.base end def test_active_records_have_scope_named__scoped__ assert !Topic.find(:all, scope = {:conditions => "content LIKE '%Have%'"}).empty? assert_equal Topic.find(:all, scope), Topic.scoped(scope) end def test_proxy_options expected_proxy_options = { :conditions => { :approved => true } } assert_equal expected_proxy_options, Topic.approved.proxy_options end def test_first_and_last_should_support_find_options assert_equal Topic.base.first(:order => 'title'), Topic.base.find(:first, :order => 'title') assert_equal Topic.base.last(:order => 'title'), Topic.base.find(:last, :order => 'title') end def test_first_and_last_should_allow_integers_for_limit assert_equal Topic.base.first(2), Topic.base.to_a.first(2) assert_equal Topic.base.last(2), Topic.base.to_a.last(2) end def test_first_and_last_should_not_use_query_when_results_are_loaded topics = Topic.base topics.reload # force load assert_no_queries do topics.first topics.last end end def test_first_and_last_find_options_should_use_query_when_results_are_loaded topics = Topic.base topics.reload # force load assert_queries(2) do topics.first(:order => 'title') topics.last(:order => 'title') end end def test_empty_should_not_load_results topics = Topic.base assert_queries(2) do topics.empty? # use count query topics.collect # force load topics.empty? # use loaded (no query) end end end