Redux Saga的Firebase身份验证不起作用

我正在尝试使用firebase auth创建新用户。我正在使用redux saga进行上述调用。

下面是我的 传奇故事js公司:

import { takeLatest, put } from 'redux-saga/effects';
import { SIGN_UP, AUTHENTICATION_FAILED, SIGN_UP_SUCCESS} from '../actions/index';
import firebase from 'firebase';


function* signUp(action){
    console.log("about to call authentication"); // This being printed
    firebase.auth().createUserWithEmailAndPassword(action.user.email, action.user.password)
            .then(function*(result){
                    console.log("success"); // Not being loged
                    yield put({SIGN_UP_SUCCESS, user: action.user});
            }).catch(function*(error){
                    console.log("failed"); //Not being loged
                    let error_message = { code: error.code, message: error.message};
                    yield put({AUTHENTICATION_FAILED, error: error_message});
            });
}

function* rootSaga(){
  yield takeLatest(SIGN_UP, signUp);
}

export  default rootSaga;

里面的代码 then 和 catch 未执行,正在调用注册生成器函数。谁能告诉我我做错了什么吗?