require "cases/helper" require "models/tag" require "models/tagging" require "models/post" require "models/rating" require "models/item" require "models/comment" require "models/author" require "models/category" require "models/categorization" require "models/vertex" require "models/edge" require "models/book" require "models/citation" require "models/aircraft" require "models/engine" require "models/car" class AssociationsJoinModelTest < ActiveRecord::TestCase self.use_transactional_tests = false unless supports_savepoints? fixtures :posts, :authors, :categories, :categorizations, :comments, :tags, :taggings, :author_favorites, :vertices, :items, :books, # Reload edges table from fixtures as otherwise repeated test was failing :edges def test_has_many assert_includes authors(:david).categories, categories(:general) end def test_has_many_inherited assert_includes authors(:mary).categories, categories(:sti_test) end def test_inherited_has_many assert_includes categories(:sti_test).authors, authors(:mary) end def test_has_many_distinct_through_join_model assert_equal 2, authors(:mary).categorized_posts.size assert_equal 1, authors(:mary).unique_categorized_posts.size end def test_has_many_distinct_through_count author = authors(:mary) assert !authors(:mary).unique_categorized_posts.loaded? assert_queries(1) { assert_equal 1, author.unique_categorized_posts.count } assert_queries(1) { assert_equal 1, author.unique_categorized_posts.count(:title) } assert_queries(1) { assert_equal 0, author.unique_categorized_posts.where(title: nil).count(:title) } assert !authors(:mary).unique_categorized_posts.loaded? end def test_has_many_distinct_through_find assert_equal 1, authors(:mary).unique_categorized_posts.to_a.size end def test_polymorphic_has_many_going_through_join_model assert_equal tags(:general), tag = posts(:welcome).tags.first assert_no_queries do tag.tagging end end def test_count_polymorphic_has_many assert_equal 1, posts(:welcome).taggings.count assert_equal 1, posts(:welcome).tags.count end def test_polymorphic_has_many_going_through_join_model_with_find assert_equal tags(:general), tag = posts(:welcome).tags.first assert_no_queries do tag.tagging end end def test_polymorphic_has_many_going_through_join_model_with_include_on_source_reflection assert_equal tags(:general), tag = posts(:welcome).funky_tags.first assert_no_queries do tag.tagging end end def test_polymorphic_has_many_going_through_join_model_with_include_on_source_reflection_with_find assert_equal tags(:general), tag = posts(:welcome).funky_tags.first assert_no_queries do tag.tagging end end def test_polymorphic_has_many_going_through_join_model_with_custom_select_and_joins assert_equal tags(:general), tag = posts(:welcome).tags.add_joins_and_select.first assert_nothing_raised { tag.author_id } end def test_polymorphic_has_many_going_through_join_model_with_custom_foreign_key assert_equal tags(:misc), taggings(:welcome_general).super_tag assert_equal tags(:misc), posts(:welcome).super_tags.first end def test_polymorphic_has_many_create_model_with_inheritance_and_custom_base_class post = SubStiPost.create title: "SubStiPost", body: "SubStiPost body" assert_instance_of SubStiPost, post tagging = tags(:misc).taggings.create(taggable: post) assert_equal "SubStiPost", tagging.taggable_type end def test_polymorphic_has_many_going_through_join_model_with_inheritance assert_equal tags(:general), posts(:thinking).tags.first end def test_polymorphic_has_many_going_through_join_model_with_inheritance_with_custom_class_name assert_equal tags(:general), posts(:thinking).funky_tags.first end def test_polymorphic_has_many_create_model_with_inheritance post = posts(:thinking) assert_instance_of SpecialPost, post tagging = tags(:misc).taggings.create(taggable: post) assert_equal "Post", tagging.taggable_type end def test_polymorphic_has_one_create_model_with_inheritance tagging = tags(:misc).create_tagging(taggable: posts(:thinking)) assert_equal "Post", tagging.taggable_type end def test_set_polymorphic_has_many tagging = tags(:misc).taggings.create posts(:thinking).taggings << tagging assert_equal "Post", tagging.taggable_type end def test_set_polymorphic_has_one tagging = tags(:misc).taggings.create posts(:thinking).tagging = tagging assert_equal "Post", tagging.taggable_type assert_equal posts(:thinking).id, tagging.taggable_id assert_equal posts(:thinking), tagging.taggable end def test_set_polymorphic_has_one_on_new_record tagging = tags(:misc).taggings.create post = Post.new title: "foo", body: "bar" post.tagging = tagging post.save! assert_equal "Post", tagging.taggable_type assert_equal post.id, tagging.taggable_id assert_equal post, tagging.taggable end def test_create_polymorphic_has_many_with_scope old_count = posts(:welcome).taggings.count tagging = posts(:welcome).taggings.create(tag: tags(:misc)) assert_equal "Post", tagging.taggable_type assert_equal old_count + 1, posts(:welcome).taggings.count end def test_create_bang_polymorphic_with_has_many_scope old_count = posts(:welcome).taggings.count tagging = posts(:welcome).taggings.create!(tag: tags(:misc)) assert_equal "Post", tagging.taggable_type assert_equal old_count + 1, posts(:welcome).taggings.count end def test_create_polymorphic_has_one_with_scope old_count = Tagging.count tagging = posts(:welcome).create_tagging(tag: tags(:misc)) assert_equal "Post", tagging.taggable_type assert_equal old_count + 1, Tagging.count end def test_delete_polymorphic_has_many_with_delete_all assert_equal 1, posts(:welcome).taggings.count posts(:welcome).taggings.first.update_columns taggable_type: "PostWithHasManyDeleteAll" post = find_post_with_dependency(1, :has_many, :taggings, :delete_all) old_count = Tagging.count post.destroy assert_equal old_count - 1, Tagging.count assert_equal 0, posts(:welcome).taggings.count end def test_delete_polymorphic_has_many_with_destroy assert_equal 1, posts(:welcome).taggings.count posts(:welcome).taggings.first.update_columns taggable_type: "PostWithHasManyDestroy" post = find_post_with_dependency(1, :has_many, :taggings, :destroy) old_count = Tagging.count post.destroy assert_equal old_count - 1, Tagging.count assert_equal 0, posts(:welcome).taggings.count end def test_delete_polymorphic_has_many_with_nullify assert_equal 1, posts(:welcome).taggings.count posts(:welcome).taggings.first.update_columns taggable_type: "PostWithHasManyNullify" post = find_post_with_dependency(1, :has_many, :taggings, :nullify) old_count = Tagging.count post.destroy assert_equal old_count, Tagging.count assert_equal 0, posts(:welcome).taggings.count end def test_delete_polymorphic_has_one_with_destroy assert posts(:welcome).tagging posts(:welcome).tagging.update_columns taggable_type: "PostWithHasOneDestroy" post = find_post_with_dependency(1, :has_one, :tagging, :destroy) old_count = Tagging.count post.destroy assert_equal old_count - 1, Tagging.count posts(:welcome).association(:tagging).reload assert_nil posts(:welcome).tagging end def test_delete_polymorphic_has_one_with_nullify assert posts(:welcome).tagging posts(:welcome).tagging.update_columns taggable_type: "PostWithHasOneNullify" post = find_post_with_dependency(1, :has_one, :tagging, :nullify) old_count = Tagging.count post.destroy assert_equal old_count, Tagging.count posts(:welcome).association(:tagging).reload assert_nil posts(:welcome).tagging end def test_has_many_with_piggyback assert_equal "2", categories(:sti_test).authors_with_select.first.post_id.to_s end def test_create_through_has_many_with_piggyback category = categories(:sti_test) ernie = category.authors_with_select.create(name: "Ernie") assert_nothing_raised do assert_equal ernie, category.authors_with_select.detect { |a| a.name == "Ernie" } end end def test_include_has_many_through posts = Post.all.merge!(order: "posts.id").to_a posts_with_authors = Post.all.merge!(includes: :authors, order: "posts.id").to_a assert_equal posts.length, posts_with_authors.length posts.length.times do |i| assert_equal posts[i].authors.length, assert_no_queries { posts_with_authors[i].authors.length } end end def test_include_polymorphic_has_one post = Post.includes(:tagging).find posts(:welcome).id tagging = taggings(:welcome_general) assert_no_queries do assert_equal tagging, post.tagging end end def test_include_polymorphic_has_one_defined_in_abstract_parent item = Item.includes(:tagging).find items(:dvd).id tagging = taggings(:godfather) assert_no_queries do assert_equal tagging, item.tagging end end def test_include_polymorphic_has_many_through posts = Post.all.merge!(order: "posts.id").to_a posts_with_tags = Post.all.merge!(includes: :tags, order: "posts.id").to_a assert_equal posts.length, posts_with_tags.length posts.length.times do |i| assert_equal posts[i].tags.length, assert_no_queries { posts_with_tags[i].tags.length } end end def test_include_polymorphic_has_many posts = Post.all.merge!(order: "posts.id").to_a posts_with_taggings = Post.all.merge!(includes: :taggings, order: "posts.id").to_a assert_equal posts.length, posts_with_taggings.length posts.length.times do |i| assert_equal posts[i].taggings.length, assert_no_queries { posts_with_taggings[i].taggings.length } end end def test_has_many_find_all assert_equal [categories(:general)], authors(:david).categories.to_a end def test_has_many_find_first assert_equal categories(:general), authors(:david).categories.first end def test_has_many_with_hash_conditions assert_equal categories(:general), authors(:david).categories_like_general.first end def test_has_many_find_conditions assert_equal categories(:general), authors(:david).categories.where("categories.name = 'General'").first assert_nil authors(:david).categories.where("categories.name = 'Technology'").first end def test_has_many_array_methods_called_by_method_missing assert authors(:david).categories.any? { |category| category.name == "General" } assert_nothing_raised { authors(:david).categories.sort } end def test_has_many_going_through_join_model_with_custom_foreign_key assert_equal [authors(:bob)], posts(:thinking).authors assert_equal [authors(:mary)], posts(:authorless).authors end def test_has_many_going_through_join_model_with_custom_primary_key assert_equal [authors(:david)], posts(:thinking).authors_using_author_id end def test_has_many_going_through_polymorphic_join_model_with_custom_primary_key assert_equal [tags(:general)], posts(:eager_other).tags_using_author_id end def test_has_many_through_with_custom_primary_key_on_belongs_to_source assert_equal [authors(:david), authors(:david)], posts(:thinking).author_using_custom_pk end def test_has_many_through_with_custom_primary_key_on_has_many_source assert_equal [authors(:david), authors(:bob)], posts(:thinking).authors_using_custom_pk.order("authors.id") end def test_belongs_to_polymorphic_with_counter_cache assert_equal 1, posts(:welcome)[:tags_count] tagging = posts(:welcome).taggings.create(tag: tags(:general)) assert_equal 2, posts(:welcome, :reload)[:tags_count] tagging.destroy assert_equal 1, posts(:welcome, :reload)[:tags_count] end def test_unavailable_through_reflection assert_raise(ActiveRecord::HasManyThroughAssociationNotFoundError) { authors(:david).nothings } end def test_has_many_through_join_model_with_conditions assert_equal [], posts(:welcome).invalid_taggings assert_equal [], posts(:welcome).invalid_tags end def test_has_many_polymorphic assert_raise ActiveRecord::HasManyThroughAssociationPolymorphicSourceError do tags(:general).taggables end assert_raise ActiveRecord::HasManyThroughAssociationPolymorphicThroughError do taggings(:welcome_general).things end assert_raise ActiveRecord::EagerLoadPolymorphicError do tags(:general).taggings.includes(:taggable).where("bogus_table.column = 1").references(:bogus_table).to_a end end def test_has_many_polymorphic_with_source_type # added sort by ID as otherwise Oracle select sometimes returned rows in different order assert_equal posts(:welcome, :thinking).sort_by(&:id), tags(:general).tagged_posts.sort_by(&:id) end def test_has_many_polymorphic_associations_merges_through_scope Tag.has_many :null_taggings, -> { none }, class_name: :Tagging Tag.has_many :null_tagged_posts, through: :null_taggings, source: "taggable", source_type: "Post" assert_equal [], tags(:general).null_tagged_posts refute_equal [], tags(:general).tagged_posts end def test_eager_has_many_polymorphic_with_source_type tag_with_include = Tag.all.merge!(includes: :tagged_posts).find(tags(:general).id) desired = posts(:welcome, :thinking) assert_no_queries do # added sort by ID as otherwise test using JRuby was failing as array elements were in different order assert_equal desired.sort_by(&:id), tag_with_include.tagged_posts.sort_by(&:id) end assert_equal 5, tag_with_include.taggings.length end def test_has_many_through_has_many_find_all assert_equal comments(:greetings), authors(:david).comments.order("comments.id").to_a.first end def test_has_many_through_has_many_find_all_with_custom_class assert_equal comments(:greetings), authors(:david).funky_comments.order("comments.id").to_a.first end def test_has_many_through_has_many_find_first assert_equal comments(:greetings), authors(:david).comments.order("comments.id").first end def test_has_many_through_has_many_find_conditions options = { where: "comments.#{QUOTED_TYPE}='SpecialComment'", order: "comments.id" } assert_equal comments(:does_it_hurt), authors(:david).comments.merge(options).first end def test_has_many_through_has_many_find_by_id assert_equal comments(:more_greetings), authors(:david).comments.find(2) end def test_has_many_through_polymorphic_has_one assert_equal Tagging.find(1, 2).sort_by(&:id), authors(:david).taggings_2 end def test_has_many_through_polymorphic_has_many assert_equal taggings(:welcome_general, :thinking_general), authors(:david).taggings.distinct.sort_by(&:id) end def test_include_has_many_through_polymorphic_has_many author = Author.includes(:taggings).find authors(:david).id expected_taggings = taggings(:welcome_general, :thinking_general) assert_no_queries do assert_equal expected_taggings, author.taggings.uniq.sort_by(&:id) end end def test_eager_load_has_many_through_has_many author = Author.all.merge!(where: ["name = ?", "David"], includes: :comments, order: "comments.id").first SpecialComment.new; VerySpecialComment.new assert_no_queries do assert_equal [1, 2, 3, 5, 6, 7, 8, 9, 10, 12], author.comments.collect(&:id) end end def test_eager_load_has_many_through_has_many_with_conditions post = Post.all.merge!(includes: :invalid_tags).first assert_no_queries do post.invalid_tags end end def test_eager_belongs_to_and_has_one_not_singularized assert_nothing_raised do Author.all.merge!(includes: :author_address).first AuthorAddress.all.merge!(includes: :author).first end end def test_self_referential_has_many_through assert_equal [authors(:mary)], authors(:david).favorite_authors assert_equal [], authors(:mary).favorite_authors end def test_add_to_self_referential_has_many_through new_author = Author.create(name: "Bob") authors(:david).author_favorites.create favorite_author: new_author assert_equal new_author, authors(:david).reload.favorite_authors.first end def test_has_many_through_uses_conditions_specified_on_the_has_many_association author = Author.first assert author.comments.present? assert author.nonexistent_comments.blank? end def test_has_many_through_uses_correct_attributes assert_nil posts(:thinking).tags.find_by_name("General").attributes["tag_id"] end def test_associating_unsaved_records_with_has_many_through saved_post = posts(:thinking) new_tag = Tag.new(name: "new") saved_post.tags << new_tag assert new_tag.persisted? #consistent with habtm! assert saved_post.persisted? assert_includes saved_post.tags, new_tag assert new_tag.persisted? assert_includes saved_post.reload.tags.reload, new_tag new_post = Post.new(title: "Association replacement works!", body: "You best believe it.") saved_tag = tags(:general) new_post.tags << saved_tag assert !new_post.persisted? assert saved_tag.persisted? assert_includes new_post.tags, saved_tag new_post.save! assert new_post.persisted? assert_includes new_post.reload.tags.reload, saved_tag assert !posts(:thinking).tags.build.persisted? assert !posts(:thinking).tags.new.persisted? end def test_create_associate_when_adding_to_has_many_through count = posts(:thinking).tags.count push = Tag.create!(name: "pushme") post_thinking = posts(:thinking) assert_nothing_raised { post_thinking.tags << push } assert_nil(wrong = post_thinking.tags.detect { |t| t.class != Tag }, message = "Expected a Tag in tags collection, got #{wrong.class}.") assert_nil(wrong = post_thinking.taggings.detect { |t| t.class != Tagging }, message = "Expected a Tagging in taggings collection, got #{wrong.class}.") assert_equal(count + 1, post_thinking.reload.tags.size) assert_equal(count + 1, post_thinking.tags.reload.size) assert_kind_of Tag, post_thinking.tags.create!(name: "foo") assert_nil(wrong = post_thinking.tags.detect { |t| t.class != Tag }, message = "Expected a Tag in tags collection, got #{wrong.class}.") assert_nil(wrong = post_thinking.taggings.detect { |t| t.class != Tagging }, message = "Expected a Tagging in taggings collection, got #{wrong.class}.") assert_equal(count + 2, post_thinking.reload.tags.size) assert_equal(count + 2, post_thinking.tags.reload.size) assert_nothing_raised { post_thinking.tags.concat(Tag.create!(name: "abc"), Tag.create!(name: "def")) } assert_nil(wrong = post_thinking.tags.detect { |t| t.class != Tag }, message = "Expected a Tag in tags collection, got #{wrong.class}.") assert_nil(wrong = post_thinking.taggings.detect { |t| t.class != Tagging }, message = "Expected a Tagging in taggings collection, got #{wrong.class}.") assert_equal(count + 4, post_thinking.reload.tags.size) assert_equal(count + 4, post_thinking.tags.reload.size) # Raises if the wrong reflection name is used to set the Edge belongs_to assert_nothing_raised { vertices(:vertex_1).sinks << vertices(:vertex_5) } end def test_add_to_join_table_with_no_id assert_nothing_raised { vertices(:vertex_1).sinks << vertices(:vertex_5) } end def test_has_many_through_collection_size_doesnt_load_target_if_not_loaded author = authors(:david) assert_equal 10, author.comments.size assert !author.comments.loaded? end def test_has_many_through_collection_size_uses_counter_cache_if_it_exists c = categories(:general) c.categorizations_count = 100 assert_equal 100, c.categorizations.size assert !c.categorizations.loaded? end def test_adding_junk_to_has_many_through_should_raise_type_mismatch assert_raise(ActiveRecord::AssociationTypeMismatch) { posts(:thinking).tags << "Uhh what now?" } end def test_adding_to_has_many_through_should_return_self tags = posts(:thinking).tags assert_equal tags, posts(:thinking).tags.push(tags(:general)) end def test_delete_associate_when_deleting_from_has_many_through_with_nonstandard_id count = books(:awdr).references.count references_before = books(:awdr).references book = Book.create!(name: "Getting Real") book_awdr = books(:awdr) book_awdr.references << book assert_equal(count + 1, book_awdr.references.reload.size) assert_nothing_raised { book_awdr.references.delete(book) } assert_equal(count, book_awdr.references.size) assert_equal(count, book_awdr.references.reload.size) assert_equal(references_before.sort, book_awdr.references.sort) end def test_delete_associate_when_deleting_from_has_many_through count = posts(:thinking).tags.count tags_before = posts(:thinking).tags.sort tag = Tag.create!(name: "doomed") post_thinking = posts(:thinking) post_thinking.tags << tag assert_equal(count + 1, post_thinking.taggings.reload.size) assert_equal(count + 1, post_thinking.reload.tags.reload.size) assert_not_equal(tags_before, post_thinking.tags.sort) assert_nothing_raised { post_thinking.tags.delete(tag) } assert_equal(count, post_thinking.tags.size) assert_equal(count, post_thinking.tags.reload.size) assert_equal(count, post_thinking.taggings.reload.size) assert_equal(tags_before, post_thinking.tags.sort) end def test_delete_associate_when_deleting_from_has_many_through_with_multiple_tags count = posts(:thinking).tags.count tags_before = posts(:thinking).tags.sort doomed = Tag.create!(name: "doomed") doomed2 = Tag.create!(name: "doomed2") quaked = Tag.create!(name: "quaked") post_thinking = posts(:thinking) post_thinking.tags << doomed << doomed2 assert_equal(count + 2, post_thinking.reload.tags.reload.size) assert_nothing_raised { post_thinking.tags.delete(doomed, doomed2, quaked) } assert_equal(count, post_thinking.tags.size) assert_equal(count, post_thinking.tags.reload.size) assert_equal(tags_before, post_thinking.tags.sort) end def test_deleting_junk_from_has_many_through_should_raise_type_mismatch assert_raise(ActiveRecord::AssociationTypeMismatch) { posts(:thinking).tags.delete(Object.new) } end def test_deleting_by_integer_id_from_has_many_through post = posts(:thinking) assert_difference "post.tags.count", -1 do assert_equal 1, post.tags.delete(1).size end assert_equal 0, post.tags.size end def test_deleting_by_string_id_from_has_many_through post = posts(:thinking) assert_difference "post.tags.count", -1 do assert_equal 1, post.tags.delete("1").size end assert_equal 0, post.tags.size end def test_has_many_through_sum_uses_calculations assert_nothing_raised { authors(:david).comments.sum(:post_id) } end def test_calculations_on_has_many_through_should_disambiguate_fields assert_nothing_raised { authors(:david).categories.maximum(:id) } end def test_calculations_on_has_many_through_should_not_disambiguate_fields_unless_necessary assert_nothing_raised { authors(:david).categories.maximum("categories.id") } end def test_has_many_through_has_many_with_sti assert_equal [comments(:does_it_hurt)], authors(:david).special_post_comments end def test_distinct_has_many_through_should_retain_order comment_ids = authors(:david).comments.map(&:id) assert_equal comment_ids.sort, authors(:david).ordered_uniq_comments.map(&:id) assert_equal comment_ids.sort.reverse, authors(:david).ordered_uniq_comments_desc.map(&:id) end def test_polymorphic_has_many expected = taggings(:welcome_general) p = Post.all.merge!(includes: :taggings).find(posts(:welcome).id) assert_no_queries { assert_includes p.taggings, expected } assert_includes posts(:welcome).taggings, taggings(:welcome_general) end def test_polymorphic_has_one expected = posts(:welcome) tagging = Tagging.all.merge!(includes: :taggable).find(taggings(:welcome_general).id) assert_no_queries { assert_equal expected, tagging.taggable } end def test_polymorphic_belongs_to p = Post.all.merge!(includes: { taggings: :taggable }).find(posts(:welcome).id) assert_no_queries { assert_equal posts(:welcome), p.taggings.first.taggable } end def test_preload_polymorphic_has_many_through posts = Post.all.merge!(order: "posts.id").to_a posts_with_tags = Post.all.merge!(includes: :tags, order: "posts.id").to_a assert_equal posts.length, posts_with_tags.length posts.length.times do |i| assert_equal posts[i].tags.length, assert_no_queries { posts_with_tags[i].tags.length } end end def test_preload_polymorph_many_types taggings = Tagging.all.merge!(includes: :taggable, where: ["taggable_type != ?", "FakeModel"]).to_a assert_no_queries do taggings.first.taggable.id taggings[1].taggable.id end taggables = taggings.map(&:taggable) assert_includes taggables, items(:dvd) assert_includes taggables, posts(:welcome) end def test_preload_nil_polymorphic_belongs_to assert_nothing_raised do Tagging.all.merge!(includes: :taggable, where: ["taggable_type IS NULL"]).to_a end end def test_preload_polymorphic_has_many posts = Post.all.merge!(order: "posts.id").to_a posts_with_taggings = Post.all.merge!(includes: :taggings, order: "posts.id").to_a assert_equal posts.length, posts_with_taggings.length posts.length.times do |i| assert_equal posts[i].taggings.length, assert_no_queries { posts_with_taggings[i].taggings.length } end end def test_belongs_to_shared_parent comments = Comment.all.merge!(includes: :post, where: "post_id = 1").to_a assert_no_queries do assert_equal comments.first.post, comments[1].post end end def test_has_many_through_include_uses_array_include_after_loaded david = authors(:david) david.categories.load_target category = david.categories.first assert_no_queries do assert david.categories.loaded? assert_includes david.categories, category end end def test_has_many_through_include_checks_if_record_exists_if_target_not_loaded david = authors(:david) category = david.categories.first david.reload assert ! david.categories.loaded? assert_queries(1) do assert_includes david.categories, category end assert ! david.categories.loaded? end def test_has_many_through_include_returns_false_for_non_matching_record_to_verify_scoping david = authors(:david) category = Category.create!(name: "Not Associated") assert ! david.categories.loaded? assert ! david.categories.include?(category) end def test_has_many_through_goes_through_all_sti_classes sub_sti_post = SubStiPost.create!(title: "test", body: "test", author_id: 1) new_comment = sub_sti_post.comments.create(body: "test") assert_equal [9, 10, new_comment.id], authors(:david).sti_post_comments.map(&:id).sort end def test_has_many_with_pluralize_table_names_false aircraft = Aircraft.create!(name: "Airbus 380") engine = Engine.create!(car_id: aircraft.id) assert_equal aircraft.engines, [engine] end def test_proper_error_message_for_eager_load_and_includes_association_errors includes_error = assert_raises(ActiveRecord::ConfigurationError) { Post.includes(:nonexistent_relation).where(nonexistent_relation: { name: "Rochester" }).find(1) } assert_equal("Can't join 'Post' to association named 'nonexistent_relation'; perhaps you misspelled it?", includes_error.message) eager_load_error = assert_raises(ActiveRecord::ConfigurationError) { Post.eager_load(:nonexistent_relation).where(nonexistent_relation: { name: "Rochester" }).find(1) } assert_equal("Can't join 'Post' to association named 'nonexistent_relation'; perhaps you misspelled it?", eager_load_error.message) includes_and_eager_load_error = assert_raises(ActiveRecord::ConfigurationError) { Post.eager_load(:nonexistent_relation).includes(:nonexistent_relation).where(nonexistent_relation: { name: "Rochester" }).find(1) } assert_equal("Can't join 'Post' to association named 'nonexistent_relation'; perhaps you misspelled it?", includes_and_eager_load_error.message) end private # create dynamic Post models to allow different dependency options def find_post_with_dependency(post_id, association, association_name, dependency) class_name = "PostWith#{association.to_s.classify}#{dependency.to_s.classify}" Post.find(post_id).update_columns type: class_name klass = Object.const_set(class_name, Class.new(ActiveRecord::Base)) klass.table_name = "posts" klass.send(association, association_name, as: :taggable, dependent: dependency) klass.find(post_id) end end