kolodny

    it('can test spies', async () => {
      const spy = browserMock.fn();
      const { page } = await render(
        app =>
          <LogoutButtonAction.Override with={() => spy}>
            {app}
          <LogoutButtonAction.Override>
      );

      await page.getByText('Log out').click();
      expect(await spy).toHaveBeenCalled();
    });

    export const CountdownTime = createOverride(60);
    export const Countdown = () => {
      const initialTime = CountdownTime.useValue();
      const [time, setTime] = React.useState(initialTime);
      React.useEffect(() => {
        const interval = setInterval(() => {
          setTime(t => t - 1);
          if (t === 1) clearInterval(interval);
        }, 1000);

        return () => clearInterval(interval)
      }, []);

      return time > 0 ? <>Time left {time}</> : <>Done</>
    };

    it('tests faster', async () => {
      const { page } = await render(
        app => <CountdownTime.Override with={() => 5}>{app}</CountdownTime.Override>
      );
      await expect(page.getByText('Done')).not.toBeVisible();
      page.waitForTimeout(5000);
      await expect(page.getByText('Done')).toBeVisible();
    });

    export const Countdown = () => {
      const [time, setTime] = React.useState(60);
      React.useEffect(() => {
        const interval = setInterval(() => {
          setTime(t => t - 1);
          if (t === 1) clearInterval(interval);
        }, 1000);

        return () => clearInterval(interval)
      }, []);

      return time > 0 ? <>Time left {time}</> : <>Done</>
    };

    $  echo -e 'this\nis\na\nwhatever foo' | nip 'return /whatever/.test(line) && cols[1]' # foo