Fix spec

ee/spec/support/shared_examples/uploaders/object_storage_shared_examples.rb

@@ -41,8 +41,10 @@ shared_examples "migrates" do |to_store:, from_store: nil|
   it 'can access to the original file during migration' do
     original_file = subject.file.path
 
-    allow(subject).to receive(:delete_migrated_file) { }
+    allow(subject).to receive(:delete_migrated_file) { } # Remove as a callback of :migrate
+    allow(subject).to receive(:record_upload) { } # Remove as a callback of :store (:record_upload)
 
+    expect(File.exist?(original_file)).to be_truthy
     expect { migrate(to) }.not_to change { File.exist?(original_file) }
   end