selenium - 如何将 PhantomJS 路径传递给 Selenium Grid

Question

尝试在 Selenium Grid 上设置 phantomjs 节点时遇到错误 ( https://wiki.jenkins-ci.org/display/JENKINS/Selenium+Plugin )

我设置了以下自定义 json 配置:

{
  "capabilities": [
    {
      "browserName": "phantomjs",
      "phantomjs.binary.path": "/usr/bin/phantomjs",
      "platform": "LINUX",
      "maxInstances": 5
    }
  ],
  "configuration": {
    "nodeTimeout":120,
    "port":5555,
    "hubPort":4444,
    "hubHost":"localhost",
    "nodePolling":2000,
    "registerCycle":10000,
    "register":true,
    "cleanUpCycle":2000,
    "timeout":30000,
    "maxSession":1
  }
}

但是当我针对它运行 webdriver 时出现错误:

WebDriverException: Message: The path to the driver executable must be set by the phantomjs.binary.path capability/system property/PATH variable; for more information, see https://github.com/ariya/phantomjs/wiki. The latest version can be downloaded from http://phantomjs.org/download.html
Stacktrace:
    at com.google.common.base.Preconditions.checkState (Preconditions.java:199)
    at org.openqa.selenium.phantomjs.PhantomJSDriverService.findPhantomJS (PhantomJSDriverService.java:236)
    at org.openqa.selenium.phantomjs.PhantomJSDriverService.createDefaultService (PhantomJSDriverService.java:181)
    at org.openqa.selenium.phantomjs.PhantomJSDriver.<init> (PhantomJSDriver.java:104)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0 (NativeConstructorAccessorImpl.java:-2)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance (NativeConstructorAccessorImpl.java:57)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance (DelegatingConstructorAccessorImpl.java:45)
    at java.lang.reflect.Constructor.newInstance (Constructor.java:526)
    at org.openqa.selenium.remote.server.DefaultDriverProvider.callConstructor (DefaultDriverProvider.java:103)
    at org.openqa.selenium.remote.server.DefaultDriverProvider.newInstance (DefaultDriverProvider.java:97)
    at org.openqa.selenium.remote.server.DefaultDriverFactory.newInstance (DefaultDriverFactory.java:60)
    at org.openqa.selenium.remote.server.DefaultSession$BrowserCreator.call (DefaultSession.java:222)
    at org.openqa.selenium.remote.server.DefaultSession$BrowserCreator.call (DefaultSession.java:1)
    at java.util.concurrent.FutureTask.run (FutureTask.java:262)
    at org.openqa.selenium.remote.server.DefaultSession$1.run (DefaultSession.java:176)
    at java.util.concurrent.ThreadPoolExecutor.runWorker (ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run (ThreadPoolExecutor.java:615)
    at java.lang.Thread.run (Thread.java:745)
-------------------- >> begin captured logging << --------------------
selenium.webdriver.remote.remote_connection: DEBUG: POST http://127.0.0.1:4444/wd/hub/session {"desiredCapabilities": {"browserName": "phantomjs"}}
selenium.webdriver.remote.remote_connection: DEBUG: Finished Request

如果我停止由插件启动的节点(并保持插件中心运行)，并按如下方式手动运行我自己的节点，则它可以正常工作:

java -jar selenium-server-standalone-2.53.0.jar -role webdriver 
    -browser browserName=phantomjs,platform=LINUX 
    -hub http://localhost:4444/grid/register

[编辑] phantomjs 可以从 shell 执行，位于/usr/bin/phantomjs:

$ whereis phantomjs
phantomjs: /usr/bin/phantomjs

我在网上找不到 phantomjs 设置的规范描述，并且这不是该插件提供的默认浏览器选项之一。

<小时/>

上述问题是 /usr/bin/phantomjs 上的操作系统权限；我需要对其执行chmod a+x。

<小时/>

厚颜无耻地添加这个额外的问题

这有效(由我手动启动):

/usr/lib/jvm/java-1.7.0-openjdk-1.7.0.111.x86_64/jre/bin/java -jar/var/lib/jenkins/selenium-server-standalone-2.53.0 .jar -role webdriver -browser browserName=phantomjs,platform=LINUX -hub http://localhost:4444/grid/register

这不是(由 selenium 插件启动的过程):

/usr/lib/jvm/java-1.7.0-openjdk-1.7.0.111.x86_64/jre/bin/java -cp/var/cache/jenkins/war/WEB-INF/lib/remoting -2.56.jar hudson.remoting.Launcher -cp/var/lib/jenkins/selenium-server-standalone-2.53.0.jar:/var/lib/jenkins/htmlunit-driver-standalone-2.20.jar -connectTo localhost: 36322

运行测试时遇到错误:PHPUnit_Extensions_Selenium2TestCase_WebDriverException:该进程尚未退出，因此没有可用的结果

Answer 1

添加答案，以防万一有人错过评论。

请检查 phantomjs 是否对所有用户都具有“x”(执行)访问权限。如果没有，则使用命令更改访问权限。

chmod +x /usr/bin/phantomjs

新错误“进程尚未退出，因此没有可用的结果”主要是由于 selenium/驱动程序版本不匹配造成的。您可以尝试降级selenium的版本。

顺便说一句，您使用的是哪个版本的 phantomjs。