前言

一直想学习自动化测试，但是都没行动，业余时间学习零零碎碎并记录20210423。

9、Selenium Grid 分布式测试

• 9、Selenium Grid 分布式测试

• Selenium Grid简介
• Selenium Grid下载安装
• Selenium远程测试-客户端
• Selenium分布式测试Grid
• Selenium 注册node节点
• Selenium实现远程测试
• Selenium Grid实现分布式测试

1、创建一个grid文件夹，以前对应文件

2、command_line.md中写的是命令启动hub和node节点

java -jar selenium-server-standalone-3.141.59.jar -role hub -hubConfig hub_config.json 

java -jar selenium-server-standalone-3.141.59.jar -role node -nodeConfig node_config.json

3、hub_config.json：配置信息

{
  "port": 8888,
  "newSessionWaitTimeout": -1,
  "servlets" : [],
  "withoutServlets": [],
  "custom": {},
  "capabilityMatcher": "org.openqa.grid.internal.utils.DefaultCapabilityMatcher",
  "registry": "org.openqa.grid.internal.DefaultGridRegistry",
  "throwOnCapabilityNotPresent": true,
  "cleanUpCycle": 5000,
  "role": "hub",
  "debug": false,
  "browserTimeout": 0,
  "timeout": 1800
}

4、node_config.json：node节点配置信息

{
  "capabilities":
  [
    {
      "browserName": "firefox",
      "marionette": true,
      "maxInstances": 5,
      "seleniumProtocol": "WebDriver"
    },
    {
      "browserName": "chrome",
      "maxInstances": 5,
      "seleniumProtocol": "WebDriver"
    },
    {
      "browserName": "internet explorer",
      "platform": "WINDOWS",
      "maxInstances": 1,
      "seleniumProtocol": "WebDriver"
    },
    {
      "browserName": "safari",
      "technologyPreview": false,
      "platform": "MAC",
      "maxInstances": 1,
      "seleniumProtocol": "WebDriver"
    }
  ],
  "proxy": "org.openqa.grid.selenium.proxy.DefaultRemoteProxy",
  "maxSession": 5,
  "port": -1,
  "register": true,
  "registerCycle": 5000,
  "hub": "http://localhost:8888",
  "nodeStatusCheckTimeout": 5000,
  "nodePolling": 5000,
  "role": "node",
  "unregisterIfStillDownAfter": 60000,
  "downPollingLimit": 2,
  "debug": false,
  "servlets" : [],
  "withoutServlets": [],
  "custom": {}
}

5、把node_config.json和hub_config.json和selenium-server-standalone-3.141.59.jar复制存到到同一个目录下

6、启动服务端（也叫hub启动）。cmd切换到这个路径下重新运行：
java -jar selenium-server-standalone-3.141.59.jar -role hub -hubConfig hub_config.json

dembp selenium-server % java -jar selenium-server-standalone-3.141.59.jar -role hub -hubConfig hub_config.json
22:19:30.614 INFO [GridLauncherV3.parse] - Selenium server version: 3.141.59, revision: e82be7d358
22:19:30.697 INFO [GridLauncherV3.lambda$buildLaunchers$5] - Launching Selenium Grid hub on port 8888
2021-04-23 22:19:31.063:INFO::main: Logging initialized @656ms to org.seleniumhq.jetty9.util.log.StdErrLog
22:19:31.206 INFO [DefaultGridRegistry.assignRequestToProxy] - Shutting down registry.
22:19:31.216 ERROR [Hub.start] - Port 8888 is busy, please choose a free port for the hub and specify it using -port option
dembp selenium-server %

报错8888端口要钱，把配置里的端口换成默认4444，重启再试下，成功了

dembp selenium-server % java -jar selenium-server-standalone-3.141.59.jar -role hub -hubConfig hub_config.json
22:22:18.257 INFO [GridLauncherV3.parse] - Selenium server version: 3.141.59, revision: e82be7d358
22:22:18.366 INFO [GridLauncherV3.lambda$buildLaunchers$5] - Launching Selenium Grid hub on port 4444
2021-04-23 22:22:18.769:INFO::main: Logging initialized @740ms to org.seleniumhq.jetty9.util.log.StdErrLog
22:22:18.969 INFO [Hub.start] - Selenium Grid hub is up and running
22:22:18.969 INFO [Hub.start] - Nodes should register to http://192.168.1.4:4444/grid/register/
22:22:18.969 INFO [Hub.start] - Clients should connect to http://192.168.1.4:4444/wd/hub

访问看下，http://localhost:4444/grid/

点击wiki，有一些详细说明

7、再启动客户端（也叫node节点注册），再打开一个终端。

java -jar selenium-server-standalone-3.141.59.jar -role node -nodeConfig node_config.json

再访问看下，http://localhost:4444/grid/console

点击configuration

这就是配置链接好了 。虽然在命令行可以配置 但是参数太多了 还是推荐这种配置文件来配置。

另：记得web驱动要配置环境变量要不然会找不到。我是放到/usr/local/bin下

“永不放弃，总有希望在前面等待！”送给自己，也送给正在阅读文章的博友们～