`disabled` property is not set

[pontakornth]

For some reason, disabled prop does not seem to set in testing. It is missing.

How to re-produce

1. Setup a component (named DisabledButton.svelte)

   <button disabled>Disabled</button>
   

2. Write this test

   import DisableButton from './DisableButton.svelte';
   import '@testing-library/jest-dom';
   import { render, screen } from '@testing-library/svelte';
   describe('DisableButton', () => {
       it('is disabled', () => {
    	   render(DisableButton);
    	   screen.debug();
    	   expect(screen.getByRole('button').hasAttribute('disabled')).toBeTruthy();
       });
   });
   

Expected behavior

The test passes.

Actual behavior

It fails and debug function prints button without disabled prop.

I think it maybe either a bug or something is wrong in my setup.