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.
<D />
            </Suspense>
          )}
        </SuspenseList>
      );
    }
    
    await A.resolve();
    ReactNoop.render(<Foo step={0} />);
    expect(Scheduler).toFlushAndYield([
      'A',
      'Suspend! [B]',
      'Loading B',
      'Loading A',
      'Loading B',
    ]);
    expect(ReactNoop).toMatchRenderedOutput(
      <>
        <span>Loading A</span>
        <span>Loading B</span>
      </>,
    );
    await B.resolve();
    expect(Scheduler).toFlushAndYield(['A', 'B']);
    expect(ReactNoop).toMatchRenderedOutput(
      <>
        <span>A</span>
        <span>B</span>
      </>,
    );