Popover opens in the browser but not in testing

[nsaritzky]

Describe the bug
The Popover element renders correctly and opens in the browser, but it fails to open when using vitest and testing-library.

To Reproduce
See this repo for a reproduction. I made it by taking the following steps:

1. Create a new solid-js project
2. Install Kobalte, vitest, @solid-js/testing-library, @testing-library/jest-dom, @testing-library/user-event, add vitest.config.ts.
3. Add a simple Popover to App.tsx:

import logo from "./logo.svg";
import styles from "./App.module.css";

const App: Component = () => {
  return (
    <div class={styles.App}>
      <header class={styles.header}>
        <Popover.Root>
          <Popover.Trigger>open</Popover.Trigger>
          <Popover.Portal>
            <Popover.Content>
              <div>hello</div>
            </Popover.Content>
          </Popover.Portal>
        </Popover.Root>
      </header>
    </div>
  );
};

export default App;

4. Add a App.test.tsx file with the following:

import { render, screen } from "@solidjs/testing-library";
import userEvent from "@testing-library/user-event";
import { test, expect, beforeEach } from "vitest";
import "@testing-library/jest-dom";

import App from "./App";

test("Clicking 'open' sets aria-expanded to true", async () => {
  const user = userEvent.setup();
  render(() => <App />);
  const open = screen.getByRole("button", { name: "open" });
  await user.click(open);
  expect(open).toHaveAttribute("aria-expanded", "true");
});

test("Clicking 'open' opens a dialog", async () => {
  const user = userEvent.setup();
  render(() => <App />);
  const open = screen.getByRole("button", { name: "open" });
  await user.click(open);
  expect(screen.getByRole("dialog"));
});

Expected behavior
The popover opens in the browser and the tests pass. Instead, the tests fail on their expect lines.

Desktop (please complete the following information):

• OS: macOS
• Browser chrome, firefox

[gBasil]

I'm running into the same issue. Calling the debug() function prints out the HTML as expected with the popover open, but queries don't return the popover contents.