Javascript 错误'；myFunctions.KeepTimesUpdate不是一个函数'；在我的云函数中

我是JavaScript新手，我正在尝试在部署Firebase云函数之前测试它，但我得到了一个失败的测试，我似乎真的无法弄清楚。当我进行摩卡咖啡测试时，我得到

TypeError: myFunctions.keepTimesUpdated is not a function
  at Context.it (testing.js:45:32)

我真的不知道为什么

这是我的testing.js

const chai = require('chai');

const assert = chai.assert;

const chaiAsPromised = require('chai-as-promised');

chai.use(chaiAsPromised);

const sinon = require('sinon');


describe('Cloud Functions', () => {
    var myFunctions, configStub, adminInitStub, functions, admin;

    before(() => {
        admin = require('firebase-admin');
        adminInitStub = sinon.stub(admin, 'initializeApp');

        functions = require('firebase-functions');
        configStub = sinon.stub(functions, 'config').returns({
            firebase: {
                databaseURL: 'https://hallpass-v2.firebaseio.com',
                storageBucket: 'not-a-project.appspot.com',

            }
        });

        myFunctions = require('/Users/mitchellgant/Documents/OldDesktop/XCode/HallPass-v2/functions/index')
    });

    after(() =>  {
        configStub.restore();
        adminInitStub.restore();

    });

    describe('keepTimesUpdated', () => {

        it('should update the nextWeek val', () => {

            const fakeEvent = {
                data: new functions.database.DeltaSnapshot(null, null, null, null,'timeInfo/currentDate')
            };

            return myFunctions.keepTimesUpdated(fakeEvent);


        })



    });

})

这是我的index.js

var functions = require('firebase-functions');
const admin = require('firebase-admin');
admin.initializeApp(functions.config().firebase);


// // Start writing Firebase Functions
// // https://firebase.google.com/functions/write-firebase-functions
//
// exports.helloWorld = functions.https.onRequest((request, response) => {
//  response.send("Hello from Firebase!");
// })

let keepTimesUpdated = functions.database.ref('timeInfo/currentDate').onWrite(async event => {
    let snap = event.data;
    let curDate = snap.value;
    let nextWeekRef = snap.ref.parent.child('nextWeek');
    let nextWeek = nextWeekRef.value;
    let nextMonthRef = snap.ref.parent.child('nextMonth')
    let nextMonth = nextMonthRef.value
    let date = new Date();
    let curMonth = date.getMonth() + 1;
    // if (curDate >= nextWeek) {
    //     nextWeekRef.set(nextWeek + 604800000);
    //     snap.ref.parent.parent.child('Schools/{school}/teachers/{teacher}').child('needToUpdateWeekVals').set(true);
    // }
    // if ( curMonth >= nextMonth) {
    //     nextMonthRef.set(nextMonth + 1);
    //     snap.ref.parent.parent.child('Schools/{school}/teachers/{teacher}').child('needToUpdateMonthVals').set(true);
    // }
})

---

任何洞察都会非常有用。

您需要导出函数：更改

让KeepTimesUpdate=…

到

导出。KeepTimesUpdate=…