小编Cha*_*had的帖子

我正在为组件编写 Jest，以确保单击按钮时将执行handleLogin。不知道为什么我不断收到 jest.fn() 未执行一次的错误。我在这里删除了大部分不必要的代码

class Login extends React.Component{
constructor(props){
    super(props);
    this.state = { }
    this.handleLogin = this.handleLogin.bind(this);
}

handleLogin(e){
    e.preventDefault();
    const { email, password, invalidEmail, invalidPassword } = this.state;
    if(!invalidEmail && !invalidPassword){
        userAPI.login({email, password}).then(data=>{
            window.localStorage.setItem('email',data.email);
            window.localStorage.setItem('password',data.password);
        }).catch(error=>{
            this.setState({
                incorrectCredential: true  // login failed due to wrong credential
            })
        })
    }else{
        this.setState({
            invalidCredential: true   // login failed due to wrong format
        })
    }  // login failed 
}
render(){
    return(
        <header>
            <div className="login" data-test="login">
               <button className="login_content_main_join" type="submit" onClick={this.handleLogin} data-test="submit">Log in</button>

                </div>
            </header> …