我正在尝试使用 React 和 Jest 编写简单的测试。

组件：

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;

测试

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>
  );
});

现在我想断言 Task 组件需要 title 、 taskId 和 onDelete 。这样我会收到关于未指定它们（或传递不同类型）的 React 警告。