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.
showB = () => this.setState({showB: true});
        return (
          <Suspense fallback="Loading...">
            {<AsyncText text="A" />}
            {this.state.showB && <AsyncText text="B" />}
          </Suspense>
        );
      }
    }
    await ReactNoop.act(async () => {
      ReactNoop.render(<App />);
    });
    expect(Scheduler).toHaveYielded(['Suspend! [A]']);
    expect(ReactNoop).toMatchRenderedOutput('Loading...');
    ReactNoop.act(() => {
      Scheduler.unstable_runWithPriority(
        Scheduler.unstable_UserBlockingPriority,
        () => showB(),
      );
    });
    expect(Scheduler).toHaveYielded(['Suspend! [A]', 'Suspend! [B]']);
  });
  
  it(
    'does not warn when component that triggered user-blocking update is between Suspense boundary ' +
      'and component that suspended',
    async () => {
      let _setShow;
      function A() {