小编ket*_*ugi的帖子

我有一个可用的 Lambda 函数，我正在尝试为它编写单元测试。如何正确模拟Context和Callback对象以检查函数的响应？

import Game from "../classes/Game";
import HttpResponse from "../classes/HttpResponse";
import { Handler, Context, Callback } from 'aws-lambda';
import { DataMapper } from '@aws/dynamodb-data-mapper';
import DynamoDB = require('aws-sdk/clients/dynamodb');

const client = new DynamoDB({region: 'us-west-2'});
const mapper = new DataMapper({client});

const put: Handler = (event: any, context: Context, callback: Callback) => {
    if (!validateInput) {
        const errMsg = `Missing data in input: ${event}`;
        const response: HttpResponse = {
            statusCode: 400,
            body: errMsg
        }

        callback(errMsg, response);
    } …