https://codesandbox.io/s/upbeat-frost-3tt25

1. Press Suspend, see "Loading..."
2. Wait five seconds, you'll see "Happy birthday" at some point 
3. You won't see it again no matter how long you wait

Expected: you'll see it every five seconds.
expect(Scheduler).toFlushAndYield(['Suspend! [A]', 'Loading A']);
    expect(ReactNoop).toMatchRenderedOutput(null);
    await A.resolve();
    expect(Scheduler).toFlushAndYield(['A', 'Suspend! [B]', 'Loading B']);
    
    jest.advanceTimersByTime(500);
    expect(ReactNoop).toMatchRenderedOutput(<span>A</span>);
    await B.resolve();
    expect(Scheduler).toFlushAndYield(['B', 'Suspend! [C]', 'Loading C']);
    
    jest.advanceTimersByTime(500);
    expect(ReactNoop).toMatchRenderedOutput(
      <>
        <span>A</span>
        <span>B</span>
      </>,
    );
    await C.resolve();
    expect(Scheduler).toFlushAndYield(['C']);
    expect(ReactNoop).toMatchRenderedOutput(
      <>
        <span>A</span>
        <span>B</span>
        <span>C</span>
      </>,
    );
  });
  it('eventually resolves a nested forwards suspense list', async () => {
    let B = createAsyncText('B');
    function Foo() {