React.Component.defaultProps objects overridden, not merged?

Question

I am trying to set defaultProp with an object literal, but after a while I realized that the constructor of the React class does not combine the default details with the attached details, so I get undefined values ​​for any properties in the defaultProps literature that were not included in the application details. Is there a way to combine the default details and application details, or do I need to split my object into several details?

class Test extends React.Component {
  constructor(props) {
    super(props);

    //props.test is only {one: false}
    //props.test.two is undefined

  }
  render() {
    return (<div>render</div>)
  }
}

Test.defaultProps = {
  test:  {
    one: true,
    two: true
  }
}


ReactDOM.render(<Test test={{'one': false}}/>, document.getElementById('#test'));

http://codepen.io/adjavaherian/pen/oYNPLz

Answer 1

, .. , . .

. , :

. , , ? ? ? ? , , ​​ _. . , prop.