我的 nightwatch.js 测试无法在 CentOS 的 Chrome headless 中运行

Question

我运行 nightwatch.js 使用 Nightwatch 版本 1.0.18 进行测试并且它在 windows 环境中工作但是当我在安装 Xvfb 后运行它在 centOS 中我发现低于错误。

 Error while running .navigateTo() protocol action: invalid session id

 Error while running .locateMultipleElements() protocol action: invalid session id

 Error while running .locateMultipleElements() protocol action: invalid session id

这是我的nightwatch.js文件代码：

{
  "src_folders": [
    "./tests"
  ],
  "output_folder": "./reports",
  "custom_commands_path": "./custom_commands",
  "custom_assertions_path": "",
  "test_workers": false,
  "webdriver": {
    "start_process": true
  },
  "test_settings": {
    "default": {
      "webdriver": {
        "port": 9515,
        "server_path": "./node_modules/chromedriver/lib/chromedriver/chromedriver",
        "cli_args": [
          "--log",
          "debug"
        ]
      },
      "skip_testcases_on_fail": true,
      "desiredCapabilities": {
        "browserName": "chrome",
        "javascriptEnabled": true,
        "acceptSslCerts": true,
        "chromeOptions": {
          "args": [
            "headless",
            "no-sandbox",
            "disable-gpu"
          ]
        }
      }
    }
  }
}

我在 centOS 环境中运行我的测试是否遗漏了什么，因为它在 windows 环境中运行ning？

Answer 1

我在 Nightwatchjs 和 npm chomedriver 设置方面遇到了同样的问题。

背景： 一切正常，直到我最近更新了系统上的 Chromium。除了原来的错误post，verbose logging还显示：

{ 
  message: 'unknown error: Chrome failed to start: exited abnormally',
  error: [ 
    "(unknown error: DevToolsActivePort file doesn't exist)",
    '(The process started from chrome location /usr/bin/chromium is no longer running, so ChromeDriver is assuming that Chrome has crashed.)',
    '(Driver info: chromedriver=2.46.628388 (4a34a70827ac54148e092aafb70504c4ea7ae926),platform=Linux 4.9.0-8-amd64 x86_64)'
  ],
}

在 downloading the standalone chromedriver (2.46.628388) 匹配我的 Chromium 版本 (72.0.3626.69) 之后，它仍然显示相同的错误。

解法： 我最终 downloading an older version of Chromium (71.0.3578.127) 并将 chromeOptions.binary 设置为 chromium 71 二进制文件的新路径。我还必须包括 'no-sandbox' 和 chromeOptions.args。

以下是上述网站的摘录：

Downloading old builds of Chrome / Chromium

Let's say you want a build of Chrome 44 for debugging purposes. Google does not offer old builds as they do not have up-to-date security fixes.

However, you can get a build of Chromium 44.x which should mostly match the stable release. Here's how you find it:

Look in https://googlechromereleases.blogspot.com/search/label/Stable%20updates for the last time "44." was mentioned.

Loop up that version history ("44.0.2403.157") in the Position Lookup

In this case it returns a base position of "330231". This is the commit of where the 44 release was branched, back in May 2015.*

Open the continuous builds archive

Click through on your platform (Linux/Mac/Win)

Paste "330231" into the filter field at the top and wait for all the results to XHR in.

Eventually I get a perfect hit: https://commondatastorage.googleapis.com/chromium-browser-snapshots/index.html?prefix=Mac/330231/

Sometimes you may have to decrement the commit number until you find one.

Download and run!

Answer 2

升级到最新版本的 chromedriver 为我解决了这个问题。你可以在这里找到最新版本； https://www.npmjs.com/package/chromedriver

Answer 3

在我的情况下，发生该错误时：

Error while running .navigateTo() protocol action: invalid session id

我在 .travis.yml 中添加了以下代码：

addons:
  chrome: stable

我的 nightwatch.js 测试无法在 CentOS 的 Chrome headless 中运行

My nightwatch.js tests not runs in Chrome headless of CentOS

automation

centos

nightwatch.js

google-chrome-headless