Flip the order of the after_create callbacks

Addresses rails/rails#32247

Add test that checks identify and analyze work in correct order

Break out direct upload test helper

Review changes for direct-upload test helper

activestorage/app/models/active_storage/attachment.rb

@@ -14,7 +14,7 @@ class ActiveStorage::Attachment < ActiveRecord::Base
 
   delegate_missing_to :blob
 
-  after_create_commit :identify_blob, :analyze_blob_later
+  after_create_commit :analyze_blob_later, :identify_blob
 
   # Synchronously purges the blob (deletes it from the configured service) and destroys the attachment.
   def purge

activestorage/test/models/attachments_test.rb

@@ -136,9 +136,7 @@ class ActiveStorage::AttachmentsTest < ActiveSupport::TestCase
   end
 
   test "identify newly-attached, directly-uploaded blob" do
-    # Simulate a direct upload.
-    blob = create_blob_before_direct_upload(filename: "racecar.jpg", content_type: "application/octet-stream", byte_size: 1124062, checksum: "7GjDDNEQb4mzMzsW+MS0JQ==")
-    ActiveStorage::Blob.service.upload(blob.key, file_fixture("racecar.jpg").open)
+    blob = directly_upload_file_blob(content_type: "application/octet-stream")
 
     @user.avatar.attach(blob)
 
@@ -146,6 +144,18 @@ class ActiveStorage::AttachmentsTest < ActiveSupport::TestCase
     assert_predicate @user.avatar, :identified?
   end
 
+  test "identify and analyze newly-attached, directly-uploaded blob" do
+    blob = directly_upload_file_blob(content_type: "application/octet-stream")
+
+    perform_enqueued_jobs do
+      @user.avatar.attach blob
+    end
+
+    assert_equal true, @user.avatar.reload.metadata[:identified]
+    assert_equal 4104, @user.avatar.metadata[:width]
+    assert_equal 2736, @user.avatar.metadata[:height]
+  end
+
   test "identify newly-attached blob only once" do
     blob = create_file_blob
     assert_predicate blob, :identified?

activestorage/test/test_helper.rb

@@ -54,6 +54,16 @@ class ActiveSupport::TestCase
       ActiveStorage::Blob.create_before_direct_upload! filename: filename, byte_size: byte_size, checksum: checksum, content_type: content_type
     end
 
+    def directly_upload_file_blob(filename: "racecar.jpg", content_type: "image/jpeg")
+      file = file_fixture(filename)
+      byte_size = file.size
+      checksum = Digest::MD5.file(file).base64digest
+
+      create_blob_before_direct_upload(filename: filename, byte_size: byte_size, checksum: checksum, content_type: content_type).tap do |blob|
+        ActiveStorage::Blob.service.upload(blob.key, file.open)
+      end
+    end
+
     def read_image(blob_or_variant)
       MiniMagick::Image.open blob_or_variant.service.send(:path_for, blob_or_variant.key)
     end