// Increment the tick to 2. This will trigger an update inside cDU. Flush
    // the first update without flushing the second one.
    React.startTransition(() => {
      instance.setState({tick: 2});
    });

    expect(Scheduler).toFlushAndYieldThrough([
      'render: 2',
      'componentDidUpdate: 2',
      'componentDidUpdate (before setState): 2',
      'componentDidUpdate (after setState): 2',
    ]);
    expect(ReactNoop).toMatchRenderedOutput(<span prop={2} />);

    // Now flush the cDU update.
    expect(Scheduler).toFlushAndYield(['render: 3', 'componentDidUpdate: 3']);
    expect(ReactNoop).toMatchRenderedOutput(<span prop={3} />);