Node.js 和西农开玩笑
我试图用西农来模拟SES,但面临以下错误。尝试使用aws sdk模拟,但不起作用Node.js 和西农开玩笑,node.js,aws-sdk,sinon,amazon-ses,aws-sdk-mock,Node.js,Aws Sdk,Sinon,Amazon Ses,Aws Sdk Mock,我试图用西农来模拟SES,但面临以下错误。尝试使用aws sdk模拟,但不起作用 Error: TypeError: Cannot stub non-existent own property sendEmail 测试类的代码段: import * as AWS from 'aws-sdk'; const sandbox = sinon.createSandbox(); sandbox.stub(AWS.SES, 'sendEmail').returns({promise: () =>
Error: TypeError: Cannot stub non-existent own property sendEmail
测试类的代码段:
import * as AWS from 'aws-sdk';
const sandbox = sinon.createSandbox();
sandbox.stub(AWS.SES, 'sendEmail').returns({promise: () => true});
实际等级:
import * as AWS from 'aws-sdk';
import * as _ from 'lodash';
export async function sendAlertMailOnFailure(status:any)
{
// load AWS SES
var ses = new AWS.SES();
const params = {
Destination: {
ToAddresses: <to_address>
},
Message: {...},
Source: <sender_address>
}
ses.sendEmail(params, (err, data) => {
if (err) {
log.error("Error sending mail::");
log.error(err, err.stack);
}
})
}
import*作为AWS从“AWS sdk”导入;
从“lodash”导入*as uuu;
导出异步函数sendAlertMailOnFailure(状态:任意)
{
//加载AWS SES
var ses=新的AWS.ses();
常量参数={
目的地:{
地址:
},
消息:{…},
资料来源:
}
ses.sendEmail(参数,(错误,数据)=>{
如果(错误){
log.error(“发送邮件时出错::”;
log.error(err,err.stack);
}
})
}
有没有办法用Sinon或aws sdk mock模拟SES?您需要在
aws
中使用prototype
来存根它:
import AWS from 'aws-sdk';
const sandbox = sinon.createSandbox();
sandbox.stub(AWS.prototype, 'SES').returns({
sendEmail: () => {
return true;
}
});
该错误似乎表明,
AWS
正在作为未定义的
导入
可能是您的ES6编译器没有自动转换这一行:
import AWS from 'aws-sdk';
…将aws sdk中的所有内容导入aws
将其更改为:
import * as AWS from 'aws-sdk';
…这可能会解决问题
(免责声明:我无法在使用Babel
v7编译并自动处理任何一种方法的环境中重现错误)使用require&不使用prototype。这是我模仿DynamoDB的作品
const aws = require('aws-sdk');
const sinon = require('sinon');
const sandbox = sinon.createSandbox();
this.awsStub = sandbox.stub(aws, 'DynamoDB').returns({
query: function() {
return {
promise: function() {
return {
Items: []
};
}
};
}
});
软件包:
“aws sdk”:“^2.453.0”
“sinon”:“^7.3.2”我在这里的回答不是针对SES
的直接解决方案,但它是我用于模拟DynamoDB.DocumentClient
和SQS
的有效解决方案。也许您可以将我的工作示例改编为单元测试中的SES
和其他awsdk
客户端
我只是花了几个小时试图让AWS SQS模拟工作,而没有求助于在函数中导入AWS sdk
客户端的AWS sdk模拟
要求
对AWS.DynamoDB.DocumentClient
的模拟非常简单,但是AWS.SQS
模拟让我难堪,直到我遇到使用建议
My lambda将坏消息移动到SQS FailQueue(而不是让lambda失败并将消息返回到常规队列进行重试,然后在maxRetries之后返回DeadLetterQueue)。模拟以下SQS方法所需的单元测试:
SQS.getQueueUrl
SQS.sendMessage
SQS.deleteMessage
我将尽量使示例代码简洁,同时仍包括所有相关部分:
我的AWS Lambda(index.js)的片段:
精简的Lambda事件记录(event.json)
简化单元测试文件(test/index.test.js):
通过执行以下操作,我可以使用awk sdk mock:
测试班
const AWSMock = require('aws-sdk-mock');
const AWS = require('aws-sdk');
AWSMock.setSDKInstance(AWS);
...
AWSMock.mock('SES', 'sendRawEmail', mockSendEmail);
// call method that needs to mock send an email goes below
sendEmail(to, from, subject, body, callback);
function mockSendEmail(params, callback) {
console.log('mock email');
return callback({
MessageId: '1234567',
});
}
实际类
const aws = require('aws-sdk');
const nodemailer = require('nodemailer');
function sendEmail(to, from, subject, body, callback) {
let addresses = to;
if (!Array.isArray(addresses)) {
addresses = [addresses];
}
let replyTo = [];
if (from) {
replyTo.push(from);
}
let data = {
to: addresses,
replyTo,
subject,
text: body,
};
nodemailer.createTransport({ SES: new aws.SES({ apiVersion: '2010-12-01' }) }).sendMail(data, callback);
}
在使用AWS SESGot的位置显示业务逻辑代码错误:TypeError:无法读取未定义的属性“prototype”安装了AWS sdk吗?AWS sdk
?是。它已经安装好了。使用DynamoDB,它工作得很好。>>stub(DynamoDB.DocumentClient.prototype,'update')。返回({promise:()=>true});错误:正在尝试存根未定义此错误的属性“SES”>>类型错误:无法存根不存在的自有属性SES。尝试使用aws sdk mock,但它不起作用并调用原始方法。在我的示例中,Lambda是index.js,它具有module.exports,包括处理程序函数。在测试文件中,const lambda=rewire('../index')
是重新布线的lambda,使用LambdaTester进行测试
const AWS = require('aws-sdk');
const expect = require('chai').expect;
const LamdbaTester = require('lambda-tester');
const rewire = require('rewire');
const sinon = require('sinon');
const event = require('./event');
const lambda = rewire('../index');
let sinonSandbox;
function mockGoodSqsMove() {
const promiseStubSqs = sinonSandbox.stub().resolves({});
const sqsMock = {
getQueueUrl: () => ({ promise: sinonSandbox.stub().resolves({ QueueUrl: 'queue-url' }) }),
sendMessage: () => ({ promise: promiseStubSqs }),
deleteMessage: () => ({ promise: promiseStubSqs })
}
lambda.__set__('sqs', sqsMock);
}
describe('handler', function () {
beforeEach(() => {
sinonSandbox = sinon.createSandbox();
});
afterEach(() => {
sinonSandbox.restore();
});
describe('when SQS message is in dedupe cache', function () {
beforeEach(() => {
// mock SQS
mockGoodSqsMove();
// mock DynamoDBClient
const promiseStub = sinonSandbox.stub().resolves({'Item': 'something'});
sinonSandbox.stub(AWS.DynamoDB.DocumentClient.prototype, 'get').returns({ promise: promiseStub });
});
it('should return an error for a duplicate message', function () {
return LamdbaTester(lambda.handler)
.event(event.valid)
.expectReject((err, additional) => {
expect(err).to.have.property('message', 'Duplicate message: {"Item":"something"}');
});
});
});
});
const AWSMock = require('aws-sdk-mock');
const AWS = require('aws-sdk');
AWSMock.setSDKInstance(AWS);
...
AWSMock.mock('SES', 'sendRawEmail', mockSendEmail);
// call method that needs to mock send an email goes below
sendEmail(to, from, subject, body, callback);
function mockSendEmail(params, callback) {
console.log('mock email');
return callback({
MessageId: '1234567',
});
}
const aws = require('aws-sdk');
const nodemailer = require('nodemailer');
function sendEmail(to, from, subject, body, callback) {
let addresses = to;
if (!Array.isArray(addresses)) {
addresses = [addresses];
}
let replyTo = [];
if (from) {
replyTo.push(from);
}
let data = {
to: addresses,
replyTo,
subject,
text: body,
};
nodemailer.createTransport({ SES: new aws.SES({ apiVersion: '2010-12-01' }) }).sendMail(data, callback);
}
const AWS = require('aws-sdk');
...
const sandbox = sinon.createSandbox();
sandbox.stub(AWS, 'SES').returns({
sendRawEmail: () => {
console.log("My sendRawEmail");
return {
promise: function () {
return {
MessageId: '987654321'
};
}
};
}
});
let ses = new AWS.SES({ region: 'us-east-1' });
let result = ses.sendRawEmail(params).promise();