require "cases/helper" require "models/post" require "models/author" require "models/project" require "models/developer" require "models/computer" require "models/company" class AssociationCallbacksTest < ActiveRecord::TestCase fixtures :posts, :authors, :projects, :developers def setup @david = authors(:david) @thinking = posts(:thinking) @authorless = posts(:authorless) assert @david.post_log.empty? end def test_adding_macro_callbacks @david.posts_with_callbacks << @thinking assert_equal ["before_adding#{@thinking.id}", "after_adding#{@thinking.id}"], @david.post_log @david.posts_with_callbacks << @thinking assert_equal ["before_adding#{@thinking.id}", "after_adding#{@thinking.id}", "before_adding#{@thinking.id}", "after_adding#{@thinking.id}"], @david.post_log end def test_adding_with_proc_callbacks @david.posts_with_proc_callbacks << @thinking assert_equal ["before_adding#{@thinking.id}", "after_adding#{@thinking.id}"], @david.post_log @david.posts_with_proc_callbacks << @thinking assert_equal ["before_adding#{@thinking.id}", "after_adding#{@thinking.id}", "before_adding#{@thinking.id}", "after_adding#{@thinking.id}"], @david.post_log end def test_removing_with_macro_callbacks first_post, second_post = @david.posts_with_callbacks[0, 2] @david.posts_with_callbacks.delete(first_post) assert_equal ["before_removing#{first_post.id}", "after_removing#{first_post.id}"], @david.post_log @david.posts_with_callbacks.delete(second_post) assert_equal ["before_removing#{first_post.id}", "after_removing#{first_post.id}", "before_removing#{second_post.id}", "after_removing#{second_post.id}"], @david.post_log end def test_removing_with_proc_callbacks first_post, second_post = @david.posts_with_callbacks[0, 2] @david.posts_with_proc_callbacks.delete(first_post) assert_equal ["before_removing#{first_post.id}", "after_removing#{first_post.id}"], @david.post_log @david.posts_with_proc_callbacks.delete(second_post) assert_equal ["before_removing#{first_post.id}", "after_removing#{first_post.id}", "before_removing#{second_post.id}", "after_removing#{second_post.id}"], @david.post_log end def test_multiple_callbacks @david.posts_with_multiple_callbacks << @thinking assert_equal ["before_adding#{@thinking.id}", "before_adding_proc#{@thinking.id}", "after_adding#{@thinking.id}", "after_adding_proc#{@thinking.id}"], @david.post_log @david.posts_with_multiple_callbacks << @thinking assert_equal ["before_adding#{@thinking.id}", "before_adding_proc#{@thinking.id}", "after_adding#{@thinking.id}", "after_adding_proc#{@thinking.id}", "before_adding#{@thinking.id}", "before_adding_proc#{@thinking.id}", "after_adding#{@thinking.id}", "after_adding_proc#{@thinking.id}"], @david.post_log end def test_has_many_callbacks_with_create morten = Author.create name: "Morten" post = morten.posts_with_proc_callbacks.create! title: "Hello", body: "How are you doing?" assert_equal ["before_adding", "after_adding#{post.id}"], morten.post_log end def test_has_many_callbacks_with_create! morten = Author.create! name: "Morten" post = morten.posts_with_proc_callbacks.create title: "Hello", body: "How are you doing?" assert_equal ["before_adding", "after_adding#{post.id}"], morten.post_log end def test_has_many_callbacks_for_save_on_parent jack = Author.new name: "Jack" jack.posts_with_callbacks.build title: "Call me back!", body: "Before you wake up and after you sleep" callback_log = ["before_adding", "after_adding#{jack.posts_with_callbacks.first.id}"] assert_equal callback_log, jack.post_log assert jack.save assert_equal 1, jack.posts_with_callbacks.count assert_equal callback_log, jack.post_log end def test_has_many_callbacks_for_destroy_on_parent firm = Firm.create! name: "Firm" client = firm.clients.create! name: "Client" firm.destroy assert_equal ["before_remove#{client.id}", "after_remove#{client.id}"], firm.log end def test_has_and_belongs_to_many_add_callback david = developers(:david) ar = projects(:active_record) assert ar.developers_log.empty? ar.developers_with_callbacks << david assert_equal ["before_adding#{david.id}", "after_adding#{david.id}"], ar.developers_log ar.developers_with_callbacks << david assert_equal ["before_adding#{david.id}", "after_adding#{david.id}", "before_adding#{david.id}", "after_adding#{david.id}"], ar.developers_log end def test_has_and_belongs_to_many_before_add_called_before_save dev = nil new_dev = nil klass = Class.new(Project) do def self.name; Project.name; end has_and_belongs_to_many :developers_with_callbacks, class_name: "Developer", before_add: lambda { |o, r| dev = r new_dev = r.new_record? } end rec = klass.create! alice = Developer.new(name: "alice") rec.developers_with_callbacks << alice assert_equal alice, dev assert_not_nil new_dev assert new_dev, "record should not have been saved" assert_not alice.new_record? end def test_has_and_belongs_to_many_after_add_called_after_save ar = projects(:active_record) assert ar.developers_log.empty? alice = Developer.new(name: "alice") ar.developers_with_callbacks << alice assert_equal"after_adding#{alice.id}", ar.developers_log.last bob = ar.developers_with_callbacks.create(name: "bob") assert_equal "after_adding#{bob.id}", ar.developers_log.last ar.developers_with_callbacks.build(name: "charlie") assert_equal "after_adding", ar.developers_log.last end def test_has_and_belongs_to_many_remove_callback david = developers(:david) jamis = developers(:jamis) activerecord = projects(:active_record) assert activerecord.developers_log.empty? activerecord.developers_with_callbacks.delete(david) assert_equal ["before_removing#{david.id}", "after_removing#{david.id}"], activerecord.developers_log activerecord.developers_with_callbacks.delete(jamis) assert_equal ["before_removing#{david.id}", "after_removing#{david.id}", "before_removing#{jamis.id}", "after_removing#{jamis.id}"], activerecord.developers_log end def test_has_and_belongs_to_many_does_not_fire_callbacks_on_clear activerecord = projects(:active_record) assert activerecord.developers_log.empty? if activerecord.developers_with_callbacks.size == 0 activerecord.developers << developers(:david) activerecord.developers << developers(:jamis) activerecord.reload assert activerecord.developers_with_callbacks.size == 2 end activerecord.developers_with_callbacks.flat_map { |d| ["before_removing#{d.id}", "after_removing#{d.id}"] }.sort assert activerecord.developers_with_callbacks.clear assert_predicate activerecord.developers_log, :empty? end def test_has_many_and_belongs_to_many_callbacks_for_save_on_parent project = Project.new name: "Callbacks" project.developers_with_callbacks.build name: "Jack", salary: 95000 callback_log = ["before_adding", "after_adding"] assert_equal callback_log, project.developers_log assert project.save assert_equal 1, project.developers_with_callbacks.size assert_equal callback_log, project.developers_log end def test_dont_add_if_before_callback_raises_exception assert_not_includes @david.unchangeable_posts, @authorless begin @david.unchangeable_posts << @authorless rescue Exception end assert @david.post_log.empty? assert_not_includes @david.unchangeable_posts, @authorless @david.reload assert_not_includes @david.unchangeable_posts, @authorless end end