需要BrowserStack授权错误

Question

我最近接管了一个项目，该项目在自动化框架中使用BrowserStack进行移动测试。我们使用的代理出现故障，所以我不得不将系统代理更改为工作的代理，我不确定它们是否相关，但这是有意义的。

我以前更改过代理，没有任何问题，所以不确定为什么会发生这种情况。将C#与selenium结合使用，在所有浏览器中都会出现错误。第一次使用这个框架时，我对它的浏览器堆栈侧了解不多。

Result StackTrace:  
at OpenQA.Selenium.Remote.RemoteWebDriver.UnpackAndThrowOnError(Response errorResponse)
   at OpenQA.Selenium.Remote.RemoteWebDriver.Execute(String driverCommandToExecute, Dictionary`2 parameters)
   at OpenQA.Selenium.Remote.RemoteWebDriver.StartSession(ICapabilities desiredCapabilities)
   at OpenQA.Selenium.Remote.RemoteWebDriver..ctor(ICommandExecutor commandExecutor, ICapabilities desiredCapabilities)
   at OpenQA.Selenium.Remote.RemoteWebDriver..ctor(Uri remoteAddress, ICapabilities desiredCapabilities)
   at Framework.CoreUtilities.CustomRemoteWebDriver..ctor(Uri remoteAddress, ICapabilities desiredCapabilities) in Framework\DriverMethods\CustomRemoteWebDriver.cs:line 12
   at Framework.CoreUtilities.BrowserStackDriverUtility.Init(String profile, String environment) in Framework\DriverMethods\BrowserStackDriverUtility.cs:line 43
   at Tests.CoreUtilities.DriverMethods.EnvironmentHooks.BrowserStackHooks.SelectBrowserStackDriver() in Framework\DriverMethods\EnvironmentHooks\BrowserStackHooks.cs:line 29
   at Tests.CoreUtilities.DriverMethods.EnvHooks.BeforeScenarioLocal() in Framework\EnvHooks.cs:line 43
   at lambda_method(Closure , IContextManager )
   at TechTalk.SpecFlow.Bindings.BindingInvoker.InvokeBinding(IBinding binding, IContextManager contextManager, Object[] arguments, ITestTracer testTracer, TimeSpan& duration)
   at TechTalk.SpecFlow.Infrastructure.TestExecutionEngine.InvokeHook(IBindingInvoker invoker, IHookBinding hookBinding, HookType hookType)
   at TechTalk.SpecFlow.Infrastructure.TestExecutionEngine.FireEvents(HookType hookType)
   at TechTalk.SpecFlow.Infrastructure.TestExecutionEngine.FireScenarioEvents(HookType bindingEvent)
   at TechTalk.SpecFlow.Infrastructure.TestExecutionEngine.OnScenarioStart(ScenarioInfo scenarioInfo)
   at TechTalk.SpecFlow.TestRunner.OnScenarioStart(ScenarioInfo scenarioInfo)
   at Tests.Features.Sprint3.S03_SNO3519_View_All_Bills_MOBILEFeature.ScenarioSetup(ScenarioInfo scenarioInfo) in Tests\Features\Sprint3\S03_SNO3519_View_all_bills_MOBILE.feature.cs:line 0
   at Tests.Features.Sprint3.S03_SNO3519_View_All_Bills_MOBILEFeature.TC5_TC6_TC7_Verify_The_Functionality_Of_The_Dropdown_Filter_On_The_All_My_Bills_Page(String email, String password, String accountNumber, String accountType, String[] exampleTags) in Tests\Features\Sprint3\S03_SNO3519_View_all_bills_MOBILE.feature:line 10
--TearDown
   at BoDi.ObjectContainer.TypeRegistration.Resolve(ObjectContainer container, RegistrationKey keyToResolve, ResolutionList resolutionPath)
   at BoDi.ObjectContainer.ResolveObject(RegistrationKey keyToResolve, ResolutionList resolutionPath)
   at BoDi.ObjectContainer.Resolve(Type typeToResolve, ResolutionList resolutionPath, String name)
   at BoDi.ObjectContainer.<>c__DisplayClass55_0.<ResolveArguments>b__0(ParameterInfo p)
   at System.Linq.Enumerable.WhereSelectArrayIterator`2.MoveNext()
   at System.Linq.Buffer`1..ctor(IEnumerable`1 source)
   at System.Linq.Enumerable.ToArray[TSource](IEnumerable`1 source)
   at BoDi.ObjectContainer.ResolveArguments(IEnumerable`1 parameters, RegistrationKey keyToResolve, ResolutionList resolutionPath)
   at BoDi.ObjectContainer.CreateObject(Type type, ResolutionList resolutionPath, RegistrationKey keyToResolve)
   at BoDi.ObjectContainer.TypeRegistration.Resolve(ObjectContainer container, RegistrationKey keyToResolve, ResolutionList resolutionPath)
   at BoDi.ObjectContainer.ResolveObject(RegistrationKey keyToResolve, ResolutionList resolutionPath)
   at BoDi.ObjectContainer.Resolve(Type typeToResolve, ResolutionList resolutionPath, String name)
   at BoDi.ObjectContainer.Resolve(Type typeToResolve, String name)
   at TechTalk.SpecFlow.Infrastructure.TestObjectResolver.ResolveBindingInstance(Type bindingType, IObjectContainer container)
   at TechTalk.SpecFlow.ScenarioContext.GetBindingInstance(Type bindingType)
   at Tests.CoreUtilities.DriverMethods.EnvHooks.AfterEachFeature() in Framework\EnvHooks.cs:line 83
   at lambda_method(Closure , IContextManager )
   at TechTalk.SpecFlow.Bindings.BindingInvoker.InvokeBinding(IBinding binding, IContextManager contextManager, Object[] arguments, ITestTracer testTracer, TimeSpan& duration)
   at TechTalk.SpecFlow.Infrastructure.TestExecutionEngine.InvokeHook(IBindingInvoker invoker, IHookBinding hookBinding, HookType hookType)
   at TechTalk.SpecFlow.Infrastructure.TestExecutionEngine.FireEvents(HookType hookType)
   at TechTalk.SpecFlow.Infrastructure.TestExecutionEngine.FireScenarioEvents(HookType bindingEvent)
   at TechTalk.SpecFlow.Infrastructure.TestExecutionEngine.OnScenarioEnd()
   at TechTalk.SpecFlow.TestRunner.OnScenarioEnd()
   at Tests.Features.Sprint3.S03_SNO3519_View_All_Bills_MOBILEFeature.ScenarioTearDown() in Tests\Features\Sprint3\S03_SNO3519_View_all_bills_MOBILE.feature.cs:line 0
Result Message: 
OpenQA.Selenium.WebDriverException : Unexpected error. <HEAD><TITLE>Authorization Required</TITLE></HEAD>
<BODY BGCOLOR="white" FGCOLOR="black"><H1>Authorization Required</H1><HR>
<FONT FACE="Helvetica,Arial"><B>
Description: Authorization is required for access to this proxy</B></FONT>
<HR>
<!-- default "Authorization Required" response (401) -->
</BODY>

TearDown : BoDi.ObjectContainerException : Interface cannot be resolved: OpenQA.Selenium.IWebDriver (resolution path: Framework.SeleniumContext)

Answer 1

这似乎是一个特定于selenium语言绑定如何生成有效负载以及browserstack如何在其端解析它的问题。

根据您分享的错误消息，很可能在解析请求负载时，browserstack无法找到您的用户名和访问密钥

您可以按照下面提到的步骤进行调试：

• 将行driver = new RemoteWebDriver(new Uri("https://hub-cloud.browserstack.com/wd/hub/")，options)；更改为driver = new RemoteWebDriver( new Uri("http://localhost:4444/wd/hub/")，options )；。您不需要在本地启动selenium-standalone jar。
• 启动一个代理来读取本地主机上的流量:4444。(如果需要，您可以使用基于节点的实现。这里有一个这样的实现：https://gist.github.com/hanikhan/f817bd64b063129cb78dc7ed0b66fdb7)
• Observe，由您正在使用的selenium客户机绑定生成的请求有效负载(如您所提到的v3.14)。例如，我的基于java的selenium客户机会在只需要传递浏览器时生成此代码。

将selenium绑定降级(到它工作的版本)，并观察它生成的有效负载。

检查客户端绑定是否使用了严格的检查，由于严格的检查，一些必需的功能在您的端被丢弃。

如果这是真的，那么您将被要求执行以下操作：

• 提出一个关于selenium C#绑定的问题，以删除对

的严格检查