Behaviour of uploading the same file twice with user.upload

[tw-thoughtworks-simon-tang]

Just want to share a use case where I think that user.upload deviates from the actual browser behaviour, and this difference seems to prevent me from writing a test case to cover a recent bugfix in my code.

I'm building a component that uses a hidden <input type="file"> to trigger the browser file picker. I made a bugfix where I added input.value = "" after handling the file selection event, to enable the user to upload the same file multiple times. Without this line, the same file selected twice would not trigger repeat events since it was already in the FileList.

However, I couldn't use user.upload in my tests to recreate the condition for this test. I'm assuming setFiles would need to be rewritten to reflect the browser behaviour where a duplicate file upload doesn't trigger a second event.

Curious what your thoughts are on this and whether it sounds like user.upload should take into account existing uploaded files?

[tw-thoughtworks-simon-tang]

Closing since I should've made this an issue report

[tw-thoughtworks-simon-tang]

Reopening because I don't have time to make a live codebox and fill out the issue report