TypeError: The "obj" argument must be an instance of Blob. Received an instance of File vitest

[mirzaahmedov]

Describe the bug
I am trying to test file upload functionality but getting this error

this.form[name] = URL.createObjectURL(e.target.files[0])

test

userEvent.upload(input, file)

gives me this error TypeError: The "obj" argument must be an instance of Blob. Received an instance of File Vitest

Additional context
I am using Vitest with happy-dom

[btea]

This seems to be a problem with nodejs, only values ​​of type Blob are supported. reference documents

[capricorn86]

I think we will have to extend NodeJS:s URL with our own implementation for methods that depends on Happy DOM classes such as File and Blob.

import { URL as NodeJSURL } from 'url';

export default class URL extends NodeJSURL {
       public override createObjectURL(object: Blob): string {
              // TODO: Implement
       }
}

The alternative way is to use NodeJS:s Blob object, but that has downsides such as decreased performance (as it is not possible to access its internal buffer).

[capricorn86]

A fix has now been released 🙂

You can read more about the release here:
https://github.com/capricorn86/happy-dom/releases/tag/v12.1.6