Same as https://github.com/facebook/react/issues/10103, but for the server renderer. You can look at implementation in https://github.com/facebook/react/pull/11168 and do something very similar in `ReactPartialRenderer.js`.
static contextTypes = {
        foo: PropTypes.string.isRequired,
      };
      componentWillReceiveProps(nextProps, nextContext) {
        expect('foo' in nextContext).toBe(true);
        if (nextProps !== this.props) {
          propChanges++;
        }
        if (nextContext !== this.context) {
          contextChanges++;
        }
      }
      render() {
        return <span className="grand-child">{this.props.children}</span>;
      }
    }
    class ChildWithContext extends React.Component {
      static contextTypes = {
        foo: PropTypes.string.isRequired,
      };
      componentWillReceiveProps(nextProps, nextContext) {
        expect('foo' in nextContext).toBe(true);
        if (nextProps !== this.props) {
          propChanges++;
        }
        if (nextContext !== this.context) {
          contextChanges++;
        }
      }
      render() {