运行量角器测试时随机出现的 Failed: ECONNREFUSED connect ECONNREFUSED 127.0.0.1

问题描述：

我的量角器测试用例随机失败并显示以下错误消息:

My protractor test cases randomly fail with this error message:

失败:ECONNREFUSED 连接 ECONNREFUSED 127.0.0.1

Failed: ECONNREFUSED connect ECONNREFUSED 127.0.0.1

我浏览了资源并尝试了所有建议的解决方案:

I have gone through the resources and tried all the suggested solutions:

升级量角器
运行 webdriver-manager 更新
已升级 chromedriver 版本，但问题似乎存在.

当我尝试一起运行所有 e2e 测试时尤其会发生这种情况.

This particularly happens when I try to run all the e2e tests together.

以下是我用于我的项目的特定版本:

Below is the specific versions that Im using for my project:

节点 - v9.2.0
量角器 - 版本 5.4.1
ChromeDriver 2.42.591088

请帮忙.

谢谢，尼拉加

答

您是否在测试中使用 async/await?

Are you using async/await in your tests?

您能否尝试通过执行node patch.js"从包含node_modules"文件夹的同一文件夹中应用以下指定的补丁?

Can you try applying patch as specified below from the same folder which contains the 'node_modules' folder by executing 'node patch.js'?

patch.js 文件

patch.js file

var fs = require('fs');
var httpIndexFile = 'node_modules/selenium-webdriver/http/index.js';
fs.readFile(httpIndexFile, 'utf8', function (err, data) {
if (err)
    throw err;
var result = data.replace(/\(e.code === 'ECONNRESET'\)/g, "(e.code === 'ECONNRESET' || e.code === 'ECONNREFUSED')");
console.log(`Patching ${httpIndexFile}`)
fs.writeFileSync(httpIndexFile, result, 'utf8');});
var chromeFile = 'node_modules/selenium-webdriver/chrome.js';
fs.readFile(chromeFile, 'utf8', function (err, data) {
if (err)
    throw err;

var result = data.replace(/new http.HttpClient\(url\)/g, "new http.HttpClient(url, new (require('http').Agent)({ keepAlive: true }))");
console.log(`Patching ${chromeFile}`)
fs.writeFileSync(chromeFile, result, 'utf8');});

请在此处查看原始帖子-https://github.com/angular/protractor/issues/4706#issuecomment-393004887

Please see original post here - https://github.com/angular/protractor/issues/4706#issuecomment-393004887

运行量角器测试时随机出现的 Failed: ECONNREFUSED connect ECONNREFUSED 127.0.0.1

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