Question

我一直在使用[webdriver manager] [1]进行本地执行，它一直很出色，但是现在我正在尝试使用selenium网格，我想使用相同的方法，但我得到了一些与能力有关的错误。

集线器和节点是localhost，这些是我实现的详细信息：

我正在用这条线开始集线器：

    start cmd /k java -jar selenium-server-standalone-3.5.0.jar -role hub -port 4443

我正在使用此行启动节点

    start cmd /k java -jar selenium-server-standalone-3.5.0.jar -port 5556 -role node -hub http://localhost:4443/grid/register

这是我用于浏览器的配置，问题在于chrome，我还没有测试过其他的。

public WebDriver cbt(String browser,  String methodName) throws Exception{
        WebDriver driver;
        DesiredCapabilities caps;

        //Check if parameter passed from TestNG is 'firefox'
        if(browser.equalsIgnoreCase("firefox"))
        {
            caps = DesiredCapabilities.firefox();
            caps.setCapability("platform", "Windows 10");
            caps.setCapability("version", "53.0");
            caps.setCapability("name", methodName);

        }

        //Check if parameter passed as 'chrome'

        else if(browser.equalsIgnoreCase("chrome"))
        {
             caps = DesiredCapabilities.chrome();

        }

        else if(browser.equalsIgnoreCase("ie")){

            caps = DesiredCapabilities.edge();
            caps.setCapability("platform", "Windows 10");
            caps.setCapability("version", "14.14393");
            caps.setCapability("name", methodName);


        }

        else{

            //If no browser passed throw exception

            throw new Exception("Browser is not correct");

        }
        String hub = "http://localhost:4443/wd/hub";
        driver = new RemoteWebDriver(new URL(hub), caps);
        return driver;
    }

这些是我得到的错误

     org.openqa.selenium.SessionNotCreatedException: Unable to create new remote session. desired capabilities = Capabilities [{browserName=chrome, version=, platform=ANY}], required capabilities = Capabilities [{}]

    Build info: version: '3.3.1', revision: '5234b325d5', time: '2017-03-10 09:10:29 +0000'
    System info: host: 'NEYMAR', ip: '169.254.112.118', os.name: 'Windows 8.1', os.arch: 'amd64', os.version: '6.3', java.version: '1.8.0_45'
    Driver info: driver.version: RemoteWebDriver
        at org.openqa.selenium.remote.ProtocolHandshake.createSession(ProtocolHandshake.java:126)
        at org.openqa.selenium.remote.HttpCommandExecutor.execute(HttpCommandExecutor.java:141)
        at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:604)
        at org.openqa.selenium.remote.RemoteWebDriver.startSession(RemoteWebDriver.java:244)
        at org.openqa.selenium.remote.RemoteWebDriver.<init>(RemoteWebDriver.java:131)
        at org.openqa.selenium.remote.RemoteWebDriver.<init>(RemoteWebDriver.java:158)
        at com.gnow.gnow.Utils.CommonConfiguration.cbt(CommonConfiguration.java:213)
        at com.gnow.gnow.Test.Test.setUp(Test.java:69)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
        at java.lang.reflect.Method.invoke(Unknown Source)
        at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:104)
        at org.testng.internal.Invoker.invokeConfigurationMethod(Invoker.java:515)
        at org.testng.internal.Invoker.invokeConfigurations(Invoker.java:217)
        at org.testng.internal.Invoker.invokeMethod(Invoker.java:590)
        at org.testng.internal.Invoker.invokeTestMethod(Invoker.java:851)
        at org.testng.internal.Invoker.invokeTestMethods(Invoker.java:1177)
        at org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:129)
        at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:112)
        at org.testng.TestRunner.privateRun(TestRunner.java:756)
        at org.testng.TestRunner.run(TestRunner.java:610)
        at org.testng.SuiteRunner.runTest(SuiteRunner.java:387)
        at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:382)
        at org.testng.SuiteRunner.privateRun(SuiteRunner.java:340)
        at org.testng.SuiteRunner.run(SuiteRunner.java:289)
        at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:52)
        at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:86)
        at org.testng.TestNG.runSuitesSequentially(TestNG.java:1293)
        at org.testng.TestNG.runSuitesLocally(TestNG.java:1218)
        at org.testng.TestNG.runSuites(TestNG.java:1133)
        at org.testng.TestNG.run(TestNG.java:1104)
        at org.testng.remote.AbstractRemoteTestNG.run(AbstractRemoteTestNG.java:132)
        at org.testng.remote.RemoteTestNG.initAndRun(RemoteTestNG.java:230)
        at org.testng.remote.RemoteTestNG.main(RemoteTestNG.java:76)

提前致谢

  [1]: https://github.com/bonigarcia/webdrivermanager

Answer 1

我建议首先将您的硒版本升级为Selenium 3.5.1

Selenium 3.3.1中存在一个错误，其中实际错误不会传递给最终用户，而您的堆栈跟踪似乎表明可能是因为该错误导致您无法看到真正的问题。此错误已在3.4.0中修复

在客户端升级到Selenium 3.5.1后，您应该立即看到问题。

由于您提到了Chrome，我猜测这可能是因为您的chromedriver在PATH中不可用。

您可能想看看我在Grid上编写的this教程，它告诉您启动和运行网格所需的一系列事项。我在there中也包含了很多关于网格的其他信息。

使用selenium grid和Webdriver manager

1 个答案: