diff options
Diffstat (limited to 'activerecord/test/cases/scoping/named_scoping_test.rb')
| -rw-r--r-- | activerecord/test/cases/scoping/named_scoping_test.rb | 467 |
1 files changed, 467 insertions, 0 deletions
diff --git a/activerecord/test/cases/scoping/named_scoping_test.rb b/activerecord/test/cases/scoping/named_scoping_test.rb new file mode 100644 index 0000000000..afe32af1d1 --- /dev/null +++ b/activerecord/test/cases/scoping/named_scoping_test.rb @@ -0,0 +1,467 @@ +require "cases/helper" +require 'models/post' +require 'models/topic' +require 'models/comment' +require 'models/reply' +require 'models/author' +require 'models/developer' + +class NamedScopingTest < ActiveRecord::TestCase + fixtures :posts, :authors, :topics, :comments, :author_addresses + + def test_implements_enumerable + assert !Topic.all.empty? + + assert_equal Topic.all.to_a, Topic.base + assert_equal Topic.all.to_a, Topic.base.to_a + assert_equal Topic.first, Topic.base.first + assert_equal Topic.all.to_a, Topic.base.map { |i| i } + end + + def test_found_items_are_cached + 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.to_a + + 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.all.empty? + + assert_equal Topic.all.to_a, Topic.base.to_a + assert_equal Topic.first, Topic.base.first + assert_equal Topic.count, Topic.base.count + assert_equal Topic.average(:replies_count), Topic.base.average(:replies_count) + end + + def test_method_missing_priority_when_delegating + klazz = Class.new(ActiveRecord::Base) do + self.table_name = "topics" + scope :since, Proc.new { where('written_on >= ?', Time.now - 1.day) } + scope :to, Proc.new { where('written_on <= ?', Time.now) } + end + assert_equal klazz.to.since.to_a, klazz.since.to.to_a + end + + def test_scope_should_respond_to_own_methods_and_methods_of_the_proxy + assert Topic.approved.respond_to?(:limit) + assert Topic.approved.respond_to?(:count) + assert Topic.approved.respond_to?(:length) + end + + def test_respond_to_respects_include_private_parameter + assert !Topic.approved.respond_to?(:tables_in_string) + assert Topic.approved.respond_to?(:tables_in_string, true) + end + + def test_scopes_with_options_limit_finds_to_those_matching_the_criteria_specified + assert !Topic.all.merge!(:where => {:approved => true}).to_a.empty? + + assert_equal Topic.all.merge!(:where => {:approved => true}).to_a, Topic.approved + assert_equal Topic.where(:approved => true).count, 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.all.merge!(:where => {:approved => true}).to_a), Topic.approved) + assert_equal((replied = Topic.all.merge!(:where => 'replies_count > 0').to_a), 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.where('written_on < ?', topics(:third).written_on) + topics_written_before_the_second = Topic.where('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_procedural_scopes_returning_nil + all_topics = Topic.all + + assert_equal all_topics, Topic.written_before(nil) + end + + def test_scope_with_object + objects = Topic.with_object + assert_operator objects.length, :>, 0 + assert objects.all?(&:approved?), 'all objects should be approved' + end + + def test_has_many_associations_have_access_to_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_scope_with_STI + assert_equal 3,Post.containing_the_letter_a.count + assert_equal 1,SpecialPost.containing_the_letter_a.count + end + + def test_has_many_through_associations_have_access_to_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_scopes_honor_current_scopes_from_when_defined + assert !Post.ranked_by_comments.limit_by(5).empty? + assert !authors(:david).posts.ranked_by_comments.limit_by(5).empty? + assert_not_equal Post.ranked_by_comments.limit_by(5), authors(:david).posts.ranked_by_comments.limit_by(5) + assert_not_equal Post.top(5), authors(:david).posts.top(5) + # Oracle sometimes sorts differently if WHERE condition is changed + assert_equal authors(:david).posts.ranked_by_comments.limit_by(5).to_a.sort_by(&:id), authors(:david).posts.top(5).to_a.sort_by(&:id) + assert_equal Post.ranked_by_comments.limit_by(5), Post.top(5) + end + + def test_active_records_have_scope_named__all__ + assert !Topic.all.empty? + + assert_equal Topic.all.to_a, Topic.base + end + + def test_active_records_have_scope_named__scoped__ + scope = Topic.where("content LIKE '%Have%'") + assert !scope.empty? + + assert_equal scope, Topic.all.merge!(where: "content LIKE '%Have%'") + 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.order("id").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_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 + + def test_any_should_not_load_results + topics = Topic.base + assert_queries(2) do + topics.any? # use count query + topics.collect # force load + topics.any? # use loaded (no query) + end + end + + def test_any_should_call_proxy_found_if_using_a_block + topics = Topic.base + assert_queries(1) do + topics.expects(:empty?).never + topics.any? { true } + end + end + + def test_any_should_not_fire_query_if_scope_loaded + topics = Topic.base + topics.collect # force load + assert_no_queries { assert topics.any? } + end + + def test_model_class_should_respond_to_any + assert Topic.any? + Topic.delete_all + assert !Topic.any? + end + + def test_many_should_not_load_results + topics = Topic.base + assert_queries(2) do + topics.many? # use count query + topics.collect # force load + topics.many? # use loaded (no query) + end + end + + def test_many_should_call_proxy_found_if_using_a_block + topics = Topic.base + assert_queries(1) do + topics.expects(:size).never + topics.many? { true } + end + end + + def test_many_should_not_fire_query_if_scope_loaded + topics = Topic.base + topics.collect # force load + assert_no_queries { assert topics.many? } + end + + def test_many_should_return_false_if_none_or_one + topics = Topic.base.where(:id => 0) + assert !topics.many? + topics = Topic.base.where(:id => 1) + assert !topics.many? + end + + def test_many_should_return_true_if_more_than_one + assert Topic.base.many? + end + + def test_model_class_should_respond_to_many + Topic.delete_all + assert !Topic.many? + Topic.create! + assert !Topic.many? + Topic.create! + assert Topic.many? + end + + def test_should_build_on_top_of_scope + topic = Topic.approved.build({}) + assert topic.approved + end + + def test_should_build_new_on_top_of_scope + topic = Topic.approved.new + assert topic.approved + end + + def test_should_create_on_top_of_scope + topic = Topic.approved.create({}) + assert topic.approved + end + + def test_should_create_with_bang_on_top_of_scope + topic = Topic.approved.create!({}) + assert topic.approved + end + + def test_should_build_on_top_of_chained_scopes + topic = Topic.approved.by_lifo.build({}) + assert topic.approved + assert_equal 'lifo', topic.author_name + end + + # Method delegation for scope names which look like /\A[a-zA-Z_]\w*[!?]?\z/ + # has been done by evaluating a string with a plain def statement. For scope + # names which contain spaces this approach doesn't work. + def test_spaces_in_scope_names + klass = Class.new(ActiveRecord::Base) do + self.table_name = "topics" + scope :"title containing space", -> { where("title LIKE '% %'") } + scope :approved, -> { where(:approved => true) } + end + assert_equal klass.send(:"title containing space"), klass.where("title LIKE '% %'") + assert_equal klass.approved.send(:"title containing space"), klass.approved.where("title LIKE '% %'") + end + + def test_find_all_should_behave_like_select + assert_equal Topic.base.to_a.select(&:approved), Topic.base.to_a.find_all(&:approved) + end + + def test_rand_should_select_a_random_object_from_proxy + assert_kind_of Topic, Topic.approved.sample + end + + def test_should_use_where_in_query_for_scope + assert_equal Developer.where(name: 'Jamis').to_set, Developer.where(id: Developer.jamises).to_set + end + + def test_size_should_use_count_when_results_are_not_loaded + topics = Topic.base + assert_queries(1) do + assert_sql(/COUNT/i) { topics.size } + end + end + + def test_size_should_use_length_when_results_are_loaded + topics = Topic.base + topics.reload # force load + assert_no_queries do + topics.size # use loaded (no query) + end + end + + def test_should_not_duplicates_where_values + where_values = Topic.where("1=1").scope_with_lambda.where_values + assert_equal ["1=1"], where_values + end + + def test_chaining_with_duplicate_joins + join = "INNER JOIN comments ON comments.post_id = posts.id" + post = Post.find(1) + assert_equal post.comments.size, Post.joins(join).joins(join).where("posts.id = #{post.id}").size + end + + def test_chaining_applies_last_conditions_when_creating + post = Topic.rejected.new + assert !post.approved? + + post = Topic.rejected.approved.new + assert post.approved? + + post = Topic.approved.rejected.new + assert !post.approved? + + post = Topic.approved.rejected.approved.new + assert post.approved? + end + + def test_chaining_combines_conditions_when_searching + # Normal hash conditions + assert_equal Topic.where(approved: false).where(approved: true).to_a, Topic.rejected.approved.to_a + assert_equal Topic.where(approved: true).where(approved: false).to_a, Topic.approved.rejected.to_a + + # Nested hash conditions with same keys + assert_equal [], Post.with_special_comments.with_very_special_comments.to_a + + # Nested hash conditions with different keys + assert_equal [posts(:sti_comments)], Post.with_special_comments.with_post(4).to_a.uniq + end + + def test_scopes_batch_finders + assert_equal 3, Topic.approved.count + + assert_queries(4) do + Topic.approved.find_each(:batch_size => 1) {|t| assert t.approved? } + end + + assert_queries(2) do + Topic.approved.find_in_batches(:batch_size => 2) do |group| + group.each {|t| assert t.approved? } + end + end + end + + def test_table_names_for_chaining_scopes_with_and_without_table_name_included + assert_nothing_raised do + Comment.for_first_post.for_first_author.to_a + end + end + + def test_scopes_on_relations + # Topic.replied + approved_topics = Topic.all.approved.order('id DESC') + assert_equal topics(:fourth), approved_topics.first + + replied_approved_topics = approved_topics.replied + assert_equal topics(:third), replied_approved_topics.first + end + + def test_index_on_scope + approved = Topic.approved.order('id ASC') + assert_equal topics(:second), approved[0] + assert approved.loaded? + end + + def test_nested_scopes_queries_size + assert_queries(1) do + Topic.approved.by_lifo.replied.written_before(Time.now).to_a + end + end + + # Note: these next two are kinda odd because they are essentially just testing that the + # query cache works as it should, but they are here for legacy reasons as they was previously + # a separate cache on association proxies, and these show that that is not necessary. + def test_scopes_are_cached_on_associations + post = posts(:welcome) + + Post.cache do + assert_queries(1) { post.comments.containing_the_letter_e.to_a } + assert_no_queries { post.comments.containing_the_letter_e.to_a } + end + end + + def test_scopes_with_arguments_are_cached_on_associations + post = posts(:welcome) + + Post.cache do + one = assert_queries(1) { post.comments.limit_by(1).to_a } + assert_equal 1, one.size + + two = assert_queries(1) { post.comments.limit_by(2).to_a } + assert_equal 2, two.size + + assert_no_queries { post.comments.limit_by(1).to_a } + assert_no_queries { post.comments.limit_by(2).to_a } + end + end + + def test_scopes_to_get_newest + post = posts(:welcome) + old_last_comment = post.comments.newest + new_comment = post.comments.create(:body => "My new comment") + assert_equal new_comment, post.comments.newest + assert_not_equal old_last_comment, post.comments.newest + end + + def test_scopes_are_reset_on_association_reload + post = posts(:welcome) + + [:destroy_all, :reset, :delete_all].each do |method| + before = post.comments.containing_the_letter_e + post.association(:comments).send(method) + assert before.object_id != post.comments.containing_the_letter_e.object_id, "CollectionAssociation##{method} should reset the named scopes cache" + end + end + + def test_scoped_are_lazy_loaded_if_table_still_does_not_exist + assert_nothing_raised do + require "models/without_table" + end + end + + def test_eager_scopes_are_deprecated + klass = Class.new(ActiveRecord::Base) + klass.table_name = 'posts' + + assert_deprecated do + klass.scope :welcome_2, klass.where(:id => posts(:welcome).id) + end + assert_equal [posts(:welcome).title], klass.welcome_2.map(&:title) + end + + def test_eager_default_scope_relations_are_deprecated + klass = Class.new(ActiveRecord::Base) + klass.table_name = 'posts' + + assert_deprecated do + klass.send(:default_scope, klass.where(:id => posts(:welcome).id)) + end + assert_equal [posts(:welcome).title], klass.all.map(&:title) + end + + def test_subclass_merges_scopes_properly + assert_equal 1, SpecialComment.where(body: 'go crazy').created.count + end + +end |