Estoy tratando de escribir una prueba simple con React y Jest.

Componente:

 import React from "react"; class Task extends React.Component { render() { let onDelete = this.props.onDelete; return ( <li> <div className="collapsible-header"><i className="material-icons" onClick={() => onDelete(this.props.taskId)}>delete</i>{this.props.title}</div> <div className="collapsible-body"><p>{this.props.description}</p></div> </li> ); } }; Task.propTypes = { title: React.PropTypes.string.isRequired, taskId: React.PropTypes.number.isRequired, onDelete: React.PropTypes.func.isRequired, description: React.PropTypes.string }; Task.defaultProps = { description: '' }; export default Task;

Prueba

 import React from 'react'; import Task from '../src/components/Task'; import renderer from 'react-test-renderer'; test('Task should require properties', () => { const component = renderer.create( //this will give me React warnings which I would like to assert <Task></Task> ); });

Ahora me gustaría afirmar que title , taskId y onDelete son necesarios para el componente Task . Que recibiré una advertencia de React sobre no especificarlos (o pasar diferentes tipos).