SendKeys synchronicity problem during Github CI tests

[remischwartz]

Hi,

I have a date input custom element that I am testing using sendKeys.
Here is an extract of the tests :

it('should update the value after user input', async () => {
  const el = await fixture<DSAInput>(
    html` <dsa-input type="date" required lang="fr-FR"></dsa-input> `
  );

  el.focus();
  await el.updateComplete;
  await sendKeys({ type: '25' });
  await sendKeys({ type: '10' });
  await sendKeys({ type: '2024' });
  await sendKeys({ press: 'Tab' });
  await el.updateComplete;

  expect(el.value).to.equal('2024-10-25');
});

The tests pass OK in local, but I get the following error when it is performed as part of my Github CI.

This looks like a sync problem.

Have you ever observed similar issues with sendKeys ?
Is there a way to add a delay between each key press ?