[Feature request] autoPreview mode

[tsirlucas]

Is your feature request related to a problem? Please describe.

Not related to a problem.

Describe the solution you'd like

A way to setup autoPreview.

Describe how should we implement this feature

Same functionality as jest-preview

Describe alternatives you've considered

Attempt to setup jest-preview with vitest,

Additional context

N/A

[BrandonGoren]

I got this working in a vitest/react-testing-library app using the following method. It's an alternative to patching it, which is what jest-preview does.

1. Turn off automatic cleanup in react-testing-library
2. Add the following to your setupTests.ts file (or equivalent under setupFiles):

import { debug } from 'vitest-preview';
import { cleanup } from '@testing-library/react';

afterEach(context => {
  // Run vitest-preview's debug if the test fails
  if (context?.meta?.result?.state === 'fail') {
    debug();
  }
  // Clean up react-testing-library. We need to manually do this because we
  // turn off the automatic teardown in the vite.config.
  // This needs to happen after vitest-preview.
  cleanup();
});