linux - 带有 PhantomJS 的 WebDriverJS 可以在 OSX 上运行，但不能在 Linux 上运行

Question

我结合使用了:

• Selenium 独立版 - https://github.com/vvo/selenium-standalone
• WebDriverJS - https://github.com/webdriverio/webdriverio
• Medium 的 PhantomJS NPM 包装器 - https://github.com/Medium/phantomjs

每个组件单独工作正常，当我运行时:

var client = webdriverjs.remote({ 
    desiredCapabilities: { 
        browserName: 'phantomjs',  
        'phantomjs.binary.path': '/path-to/node_modules/phantomjs/bin/phantomjs'
    }, 
    logLevel: 'silent' 
});

client.init();

它在 OSX/Mac 上运行良好，但在我们的 CI Linux 服务器 (Ubuntu) 上，我收到以下错误消息；

PhantomJS is launching GhostDriver...
Unable to open file '/path/to/phantomjsdriver.log'

在不可避免的 Java 堆栈跟踪之前...

Driver info: driver.version: unknown
    at java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:222)
    at java.util.concurrent.FutureTask.get(FutureTask.java:83)
    at org.openqa.selenium.remote.server.DefaultSession.execute(DefaultSession.java:176)
    at org.openqa.selenium.remote.server.DefaultSession.<init>(DefaultSession.java:112)
    at org.openqa.selenium.remote.server.DefaultSession.createSession(DefaultSession.java:89)
    at org.openqa.selenium.remote.server.DefaultDriverSessions.newSession(DefaultDriverSessions.java:110)
    at org.openqa.selenium.remote.server.handler.NewSession.handle(NewSession.java:57)
    at org.openqa.selenium.remote.server.handler.NewSession.handle(NewSession.java:1)
    at org.openqa.selenium.remote.server.rest.ResultConfig.handle(ResultConfig.java:112)
    at org.openqa.selenium.remote.server.JsonHttpCommandHandler.handleRequest(JsonHttpCommandHandler.java:173)
    at org.openqa.selenium.remote.server.DriverServlet.handleRequest(DriverServlet.java:200)
    at org.openqa.selenium.remote.server.DriverServlet.doPost(DriverServlet.java:162)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
    at org.openqa.selenium.remote.server.DriverServlet.service(DriverServlet.java:128)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
    at org.openqa.jetty.jetty.servlet.ServletHolder.handle(ServletHolder.java:428)
    at org.openqa.jetty.jetty.servlet.ServletHandler.dispatch(ServletHandler.java:680)
    at org.openqa.jetty.jetty.servlet.ServletHandler.handle(ServletHandler.java:571)
    at org.openqa.jetty.http.HttpContext.handle(HttpContext.java:1526)
    at org.openqa.jetty.http.HttpContext.handle(HttpContext.java:1479)
    at org.openqa.jetty.http.HttpServer.service(HttpServer.java:920)
    at org.openqa.jetty.http.HttpConnection.service(HttpConnection.java:820)
    at org.openqa.jetty.http.HttpConnection.handleNext(HttpConnection.java:986)
    at org.openqa.jetty.http.HttpConnection.handle(HttpConnection.java:837)
    at org.openqa.jetty.http.SocketListener.handleConnection(SocketListener.java:243)
    at org.openqa.jetty.util.ThreadedServer.handle(ThreadedServer.java:358)
    at org.openqa.jetty.util.ThreadPool$PoolThread.run(ThreadPool.java:537)
Caused by: org.openqa.selenium.WebDriverException: java.lang.reflect.InvocationTargetException

&

Driver info: driver.version: PhantomJSDriver
    at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:590)
    at org.openqa.selenium.remote.RemoteWebDriver.startSession(RemoteWebDriver.java:241)
    at org.openqa.selenium.remote.RemoteWebDriver.<init>(RemoteWebDriver.java:127)
    at org.openqa.selenium.remote.RemoteWebDriver.<init>(RemoteWebDriver.java:140)
    at org.openqa.selenium.phantomjs.PhantomJSDriver.<init>(PhantomJSDriver.java:110)
    at org.openqa.selenium.phantomjs.PhantomJSDriver.<init>(PhantomJSDriver.java:99)
    ... 14 more
 Caused by: org.openqa.selenium.WebDriverException: Timed out waiting for driver server to start.

我怀疑是权限问题，但想知道以前是否有人遇到过这个问题。 至少，如果能弄清楚为什么这在 Mac 上有效，那就太好了。

Answer 1

此文件 - phantomjsdriver.log - 只能由具有文件写入权限的用户创建。 以“root”身份执行程序解决了这个问题。