我正在使用笑话来编写测试用例,但如果不是按钮,则无法获得如何测试点击模拟的信息。 如果是按钮,则编写find('button),但是如果单击div并且嵌套了div,该怎么办
class Section extends React.Component {
constructor(props) {
super(props);
this.state = {
open: props.open,
className: 'accordion-content accordion-close',
headingClassName: 'accordion-heading'
};
this.handleClick = this.handleClick.bind(this);
}
handleClick() {
this.setState({
open: !this.state.open
});
}
render() {
const { title, children } = this.props;
const { open } = this.state;
const sectionStateClassname = open
? styles.accordionSectionContentOpened
: styles.accordionSectionContentClosed;
return (
<div className={styles.accordionSection}>
<div
className={styles.accordionSectionHeading}
onClick={this.handleClick}
id="123"
>
{title}
</div>
<div
className={`${
styles.accordionSectionContent
} ${sectionStateClassname}`}
>
{children}
</div>
</div>
);
}
}
这是我开玩笑的测试用例
test('Section', () => {
const handleClick = jest.fn();
const wrapper = mount(<Section onClick={ handleClick} title="show more"/>)
wrapper.text('show more').simulate('click')
expect(handleClick).toBeCalled()
});
答案 0 :(得分:1)
wrapper.find('.' + styles.accordionSectionHeading).first().simulate('click')
此外,您的组件似乎未调用prop handleClick
。而是调用实例方法,因此如下所示:
wrapper.instance().handleClick = jest.fn();
expect(wrapper.instance().handleClick).toBeCalled();
似乎更正确。
或者更好的是,您可以只检查状态是否已更改
expect(wrapper.state('open')).toBeTruthy();
希望有帮助。