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+# frozen_string_literal: true
+
+require "test_helper"
+require "database/setup"
+
+class ActiveStorage::OneAttachedTest < ActiveSupport::TestCase
+ include ActiveJob::TestHelper
+
+ setup do
+ @user = User.create!(name: "Josh")
+ end
+
+ teardown { ActiveStorage::Blob.all.each(&:delete) }
+
+ test "attaching an existing blob to an existing record" do
+ @user.avatar.attach create_blob(filename: "funky.jpg")
+ assert_equal "funky.jpg", @user.avatar.filename.to_s
+ end
+
+ test "attaching an existing blob from a signed ID to an existing record" do
+ @user.avatar.attach create_blob(filename: "funky.jpg").signed_id
+ assert_equal "funky.jpg", @user.avatar.filename.to_s
+ end
+
+ test "attaching a new blob from a Hash to an existing record" do
+ @user.avatar.attach io: StringIO.new("STUFF"), filename: "town.jpg", content_type: "image/jpg"
+ assert_equal "town.jpg", @user.avatar.filename.to_s
+ end
+
+ test "attaching a new blob from an uploaded file to an existing record" do
+ @user.avatar.attach fixture_file_upload("racecar.jpg")
+ assert_equal "racecar.jpg", @user.avatar.filename.to_s
+ end
+
+ test "attaching an existing blob to an existing, changed record" do
+ @user.name = "Tina"
+ assert @user.changed?
+
+ @user.avatar.attach create_blob(filename: "funky.jpg")
+ assert_equal "funky.jpg", @user.avatar.filename.to_s
+ assert_not @user.avatar.persisted?
+ assert @user.will_save_change_to_name?
+
+ @user.save!
+ assert_equal "funky.jpg", @user.reload.avatar.filename.to_s
+ end
+
+ test "attaching an existing blob from a signed ID to an existing, changed record" do
+ @user.name = "Tina"
+ assert @user.changed?
+
+ @user.avatar.attach create_blob(filename: "funky.jpg").signed_id
+ assert_equal "funky.jpg", @user.avatar.filename.to_s
+ assert_not @user.avatar.persisted?
+ assert @user.will_save_change_to_name?
+
+ @user.save!
+ assert_equal "funky.jpg", @user.reload.avatar.filename.to_s
+ end
+
+ test "attaching a new blob from a Hash to an existing, changed record" do
+ @user.name = "Tina"
+ assert @user.changed?
+
+ @user.avatar.attach io: StringIO.new("STUFF"), filename: "town.jpg", content_type: "image/jpg"
+ assert_equal "town.jpg", @user.avatar.filename.to_s
+ assert_not @user.avatar.persisted?
+ assert @user.will_save_change_to_name?
+
+ @user.save!
+ assert_equal "town.jpg", @user.reload.avatar.filename.to_s
+ end
+
+ test "attaching a new blob from an uploaded file to an existing, changed record" do
+ @user.name = "Tina"
+ assert @user.changed?
+
+ @user.avatar.attach fixture_file_upload("racecar.jpg")
+ assert_equal "racecar.jpg", @user.avatar.filename.to_s
+ assert_not @user.avatar.persisted?
+ assert @user.will_save_change_to_name?
+
+ @user.save!
+ assert_equal "racecar.jpg", @user.reload.avatar.filename.to_s
+ end
+
+ test "updating an existing record to attach an existing blob" do
+ @user.update! avatar: create_blob(filename: "funky.jpg")
+ assert_equal "funky.jpg", @user.avatar.filename.to_s
+ end
+
+ test "updating an existing record to attach an existing blob from a signed ID" do
+ @user.update! avatar: create_blob(filename: "funky.jpg").signed_id
+ assert_equal "funky.jpg", @user.avatar.filename.to_s
+ end
+
+ test "successfully updating an existing record to attach a new blob from an uploaded file" do
+ @user.avatar = fixture_file_upload("racecar.jpg")
+ assert_equal "racecar.jpg", @user.avatar.filename.to_s
+ assert_not ActiveStorage::Blob.service.exist?(@user.avatar.key)
+
+ @user.save!
+ assert ActiveStorage::Blob.service.exist?(@user.avatar.key)
+ end
+
+ test "unsuccessfully updating an existing record to attach a new blob from an uploaded file" do
+ assert_not @user.update(name: "", avatar: fixture_file_upload("racecar.jpg"))
+ assert_equal "racecar.jpg", @user.avatar.filename.to_s
+ assert_not ActiveStorage::Blob.service.exist?(@user.avatar.key)
+ end
+
+ test "successfully replacing an existing, dependent attachment on an existing record" do
+ create_blob(filename: "funky.jpg").tap do |old_blob|
+ @user.avatar.attach old_blob
+
+ perform_enqueued_jobs do
+ @user.avatar.attach create_blob(filename: "town.jpg")
+ end
+
+ assert_equal "town.jpg", @user.avatar.filename.to_s
+ assert_not ActiveStorage::Blob.exists?(old_blob.id)
+ assert_not ActiveStorage::Blob.service.exist?(old_blob.key)
+ end
+ end
+
+ test "replacing an existing, independent attachment on an existing record" do
+ @user.cover_photo.attach create_blob(filename: "funky.jpg")
+
+ assert_no_enqueued_jobs only: ActiveStorage::PurgeJob do
+ @user.cover_photo.attach create_blob(filename: "town.jpg")
+ end
+
+ assert_equal "town.jpg", @user.cover_photo.filename.to_s
+ end
+
+ test "replacing an attached blob on an existing record with itself" do
+ create_blob(filename: "funky.jpg").tap do |blob|
+ @user.avatar.attach blob
+
+ assert_no_changes -> { @user.reload.avatar_attachment.id } do
+ assert_no_enqueued_jobs do
+ @user.avatar.attach blob
+ end
+ end
+
+ assert_equal "funky.jpg", @user.avatar.filename.to_s
+ assert ActiveStorage::Blob.service.exist?(@user.avatar.key)
+ end
+ end
+
+ test "successfully updating an existing record to replace an existing, dependent attachment" do
+ create_blob(filename: "funky.jpg").tap do |old_blob|
+ @user.avatar.attach old_blob
+
+ perform_enqueued_jobs do
+ @user.update! avatar: create_blob(filename: "town.jpg")
+ end
+
+ assert_equal "town.jpg", @user.avatar.filename.to_s
+ assert_not ActiveStorage::Blob.exists?(old_blob.id)
+ assert_not ActiveStorage::Blob.service.exist?(old_blob.key)
+ end
+ end
+
+ test "successfully updating an existing record to replace an existing, independent attachment" do
+ @user.cover_photo.attach create_blob(filename: "funky.jpg")
+
+ assert_no_enqueued_jobs only: ActiveStorage::PurgeJob do
+ @user.update! cover_photo: create_blob(filename: "town.jpg")
+ end
+
+ assert_equal "town.jpg", @user.cover_photo.filename.to_s
+ end
+
+ test "unsuccessfully updating an existing record to replace an existing attachment" do
+ @user.avatar.attach create_blob(filename: "funky.jpg")
+
+ assert_no_enqueued_jobs do
+ assert_not @user.update(name: "", avatar: fixture_file_upload("racecar.jpg"))
+ end
+
+ assert_equal "racecar.jpg", @user.avatar.filename.to_s
+ assert_not ActiveStorage::Blob.service.exist?(@user.avatar.key)
+ end
+
+ test "updating an existing record to replace an attached blob with itself" do
+ create_blob(filename: "funky.jpg").tap do |blob|
+ @user.avatar.attach blob
+
+ assert_no_enqueued_jobs do
+ assert_no_changes -> { @user.reload.avatar_attachment.id } do
+ @user.update! avatar: blob
+ end
+ end
+ end
+ end
+
+ test "removing a dependent attachment from an existing record" do
+ create_blob(filename: "funky.jpg").tap do |blob|
+ @user.avatar.attach blob
+
+ assert_enqueued_with job: ActiveStorage::PurgeJob, args: [ blob ] do
+ @user.avatar.attach nil
+ end
+
+ assert_not @user.avatar.attached?
+ end
+ end
+
+ test "removing an independent attachment from an existing record" do
+ create_blob(filename: "funky.jpg").tap do |blob|
+ @user.cover_photo.attach blob
+
+ assert_no_enqueued_jobs only: ActiveStorage::PurgeJob do
+ @user.cover_photo.attach nil
+ end
+
+ assert_not @user.cover_photo.attached?
+ end
+ end
+
+ test "updating an existing record to remove a dependent attachment" do
+ create_blob(filename: "funky.jpg").tap do |blob|
+ @user.avatar.attach blob
+
+ assert_enqueued_with job: ActiveStorage::PurgeJob, args: [ blob ] do
+ @user.update! avatar: nil
+ end
+
+ assert_not @user.avatar.attached?
+ end
+ end
+
+ test "updating an existing record to remove an independent attachment" do
+ create_blob(filename: "funky.jpg").tap do |blob|
+ @user.cover_photo.attach blob
+
+ assert_no_enqueued_jobs only: ActiveStorage::PurgeJob do
+ @user.update! cover_photo: nil
+ end
+
+ assert_not @user.cover_photo.attached?
+ end
+ end
+
+ test "analyzing a new blob from an uploaded file after attaching it to an existing record" do
+ perform_enqueued_jobs do
+ @user.avatar.attach fixture_file_upload("racecar.jpg")
+ end
+
+ assert @user.avatar.reload.analyzed?
+ assert_equal 4104, @user.avatar.metadata[:width]
+ assert_equal 2736, @user.avatar.metadata[:height]
+ end
+
+ test "analyzing a new blob from an uploaded file after attaching it to an existing record via update" do
+ perform_enqueued_jobs do
+ @user.update! avatar: fixture_file_upload("racecar.jpg")
+ end
+
+ assert @user.avatar.reload.analyzed?
+ assert_equal 4104, @user.avatar.metadata[:width]
+ assert_equal 2736, @user.avatar.metadata[:height]
+ end
+
+ test "analyzing a directly-uploaded blob after attaching it to an existing record" do
+ perform_enqueued_jobs do
+ @user.avatar.attach directly_upload_file_blob(filename: "racecar.jpg")
+ end
+
+ assert @user.avatar.reload.analyzed?
+ assert_equal 4104, @user.avatar.metadata[:width]
+ assert_equal 2736, @user.avatar.metadata[:height]
+ end
+
+ test "analyzing a directly-uploaded blob after attaching it to an existing record via updates" do
+ perform_enqueued_jobs do
+ @user.update! avatar: directly_upload_file_blob(filename: "racecar.jpg")
+ end
+
+ assert @user.avatar.reload.analyzed?
+ assert_equal 4104, @user.avatar.metadata[:width]
+ assert_equal 2736, @user.avatar.metadata[:height]
+ end
+
+ test "attaching an existing blob to a new record" do
+ User.new(name: "Jason").tap do |user|
+ user.avatar.attach create_blob(filename: "funky.jpg")
+ assert user.new_record?
+ assert_equal "funky.jpg", user.avatar.filename.to_s
+
+ user.save!
+ assert_equal "funky.jpg", user.reload.avatar.filename.to_s
+ end
+ end
+
+ test "attaching an existing blob from a signed ID to a new record" do
+ User.new(name: "Jason").tap do |user|
+ user.avatar.attach create_blob(filename: "funky.jpg").signed_id
+ assert user.new_record?
+ assert_equal "funky.jpg", user.avatar.filename.to_s
+
+ user.save!
+ assert_equal "funky.jpg", user.reload.avatar.filename.to_s
+ end
+ end
+
+ test "attaching a new blob from a Hash to a new record" do
+ User.new(name: "Jason").tap do |user|
+ user.avatar.attach io: StringIO.new("STUFF"), filename: "town.jpg", content_type: "image/jpg"
+ assert user.new_record?
+ assert user.avatar.attachment.new_record?
+ assert user.avatar.blob.new_record?
+ assert_equal "town.jpg", user.avatar.filename.to_s
+ assert_not ActiveStorage::Blob.service.exist?(user.avatar.key)
+
+ user.save!
+ assert user.avatar.attachment.persisted?
+ assert user.avatar.blob.persisted?
+ assert_equal "town.jpg", user.reload.avatar.filename.to_s
+ assert ActiveStorage::Blob.service.exist?(user.avatar.key)
+ end
+ end
+
+ test "attaching a new blob from an uploaded file to a new record" do
+ User.new(name: "Jason").tap do |user|
+ user.avatar.attach fixture_file_upload("racecar.jpg")
+ assert user.new_record?
+ assert user.avatar.attachment.new_record?
+ assert user.avatar.blob.new_record?
+ assert_equal "racecar.jpg", user.avatar.filename.to_s
+ assert_not ActiveStorage::Blob.service.exist?(user.avatar.key)
+
+ user.save!
+ assert user.avatar.attachment.persisted?
+ assert user.avatar.blob.persisted?
+ assert_equal "racecar.jpg", user.reload.avatar.filename.to_s
+ assert ActiveStorage::Blob.service.exist?(user.avatar.key)
+ end
+ end
+
+ test "creating a record with an existing blob attached" do
+ user = User.create!(name: "Jason", avatar: create_blob(filename: "funky.jpg"))
+ assert_equal "funky.jpg", user.reload.avatar.filename.to_s
+ end
+
+ test "creating a record with an existing blob from a signed ID attached" do
+ user = User.create!(name: "Jason", avatar: create_blob(filename: "funky.jpg").signed_id)
+ assert_equal "funky.jpg", user.reload.avatar.filename.to_s
+ end
+
+ test "creating a record with a new blob from an uploaded file attached" do
+ User.new(name: "Jason", avatar: fixture_file_upload("racecar.jpg")).tap do |user|
+ assert user.new_record?
+ assert user.avatar.attachment.new_record?
+ assert user.avatar.blob.new_record?
+ assert_equal "racecar.jpg", user.avatar.filename.to_s
+ assert_not ActiveStorage::Blob.service.exist?(user.avatar.key)
+
+ user.save!
+ assert_equal "racecar.jpg", user.reload.avatar.filename.to_s
+ end
+ end
+
+ test "creating a record with an unexpected object attached" do
+ error = assert_raises(ArgumentError) { User.create!(name: "Jason", avatar: :foo) }
+ assert_equal "Could not find or build blob: expected attachable, got :foo", error.message
+ end
+
+ test "analyzing a new blob from an uploaded file after attaching it to a new record" do
+ perform_enqueued_jobs do
+ user = User.create!(name: "Jason", avatar: fixture_file_upload("racecar.jpg"))
+ assert user.avatar.reload.analyzed?
+ assert_equal 4104, user.avatar.metadata[:width]
+ assert_equal 2736, user.avatar.metadata[:height]
+ end
+ end
+
+ test "analyzing a directly-uploaded blob after attaching it to a new record" do
+ perform_enqueued_jobs do
+ user = User.create!(name: "Jason", avatar: directly_upload_file_blob(filename: "racecar.jpg"))
+ assert user.avatar.reload.analyzed?
+ assert_equal 4104, user.avatar.metadata[:width]
+ assert_equal 2736, user.avatar.metadata[:height]
+ end
+ end
+
+ test "detaching" do
+ create_blob(filename: "funky.jpg").tap do |blob|
+ @user.avatar.attach blob
+ assert @user.avatar.attached?
+
+ perform_enqueued_jobs do
+ @user.avatar.detach
+ end
+
+ assert_not @user.avatar.attached?
+ assert ActiveStorage::Blob.exists?(blob.id)
+ assert ActiveStorage::Blob.service.exist?(blob.key)
+ end
+ end
+
+ test "purging" do
+ create_blob(filename: "funky.jpg").tap do |blob|
+ @user.avatar.attach blob
+ assert @user.avatar.attached?
+
+ @user.avatar.purge
+ assert_not @user.avatar.attached?
+ assert_not ActiveStorage::Blob.exists?(blob.id)
+ assert_not ActiveStorage::Blob.service.exist?(blob.key)
+ end
+ end
+
+ test "purging later" do
+ create_blob(filename: "funky.jpg").tap do |blob|
+ @user.avatar.attach blob
+ assert @user.avatar.attached?
+
+ perform_enqueued_jobs do
+ @user.avatar.purge_later
+ end
+
+ assert_not @user.avatar.attached?
+ assert_not ActiveStorage::Blob.exists?(blob.id)
+ assert_not ActiveStorage::Blob.service.exist?(blob.key)
+ end
+ end
+
+ test "purging dependent attachment later on destroy" do
+ create_blob(filename: "funky.jpg").tap do |blob|
+ @user.avatar.attach blob
+
+ perform_enqueued_jobs do
+ @user.destroy!
+ end
+
+ assert_not ActiveStorage::Blob.exists?(blob.id)
+ assert_not ActiveStorage::Blob.service.exist?(blob.key)
+ end
+ end
+
+ test "not purging independent attachment on destroy" do
+ create_blob(filename: "funky.jpg").tap do |blob|
+ @user.cover_photo.attach blob
+
+ assert_no_enqueued_jobs do
+ @user.destroy!
+ end
+ end
+ end
+
+ test "clearing change on reload" do
+ @user.avatar = create_blob(filename: "funky.jpg")
+ assert @user.avatar.attached?
+
+ @user.reload
+ assert_not @user.avatar.attached?
+ end
+
+ test "overriding attached reader" do
+ @user.avatar.attach create_blob(filename: "funky.jpg")
+
+ assert_equal "funky.jpg", @user.avatar.filename.to_s
+
+ begin
+ User.class_eval do
+ def avatar
+ super.filename.to_s.reverse
+ end
+ end
+
+ assert_equal "gpj.yknuf", @user.avatar
+ ensure
+ User.send(:remove_method, :avatar)
+ end
+ end
+end