"Access violation reading location" 在 IISExpress 10 中（在 webengine4.dll 中）与 Selenium IEDriver 12.6

Question

我的配置如下。 XUnit 运行ner (1.9.2) 触发使用 SpecFlow 生成的测试。 IISExpress 10 像这样在单例中启动：

_iisProcess = new Process { 
    StartInfo = { 
        FileName = Path.Combine(programFiles, @"IIS Express\iisexpress.exe") 
        } 
    }; 
var applicationPath = GetApplicationPath();
_iisProcess.StartInfo.Arguments = string.Format(
    "/path:{0} /port:{1} /systray:false /trace:e",
    applicationPath,
    IisPort); // so far 9090
_iisProcess.Start();

Selenium IEDriverServer.exe (2.46) 配置如下：

_driver = new InternetExplorerDriver(
    new InternetExplorerOptions(){EnsureCleanSession = true});

按照this guide配置的机器。 IEDriverServer.exe 监听 17923 端口。

在测试的某些时候，IISExpress 失败并出现 "Access violation" (c0000005) 错误。实际的失败系统测试各不相同，但看起来它是在有一些活跃的 UI 交互时发生的。有 SignalR、动态内容等。问题签名：

  Problem Event Name:   APPCRASH
  Application Name: iisexpress.exe
  Application Version:  10.0.10046.0
  Application Timestamp:    55121079
  Fault Module Name:    webengine4.dll
  Fault Module Version: 4.6.57.0
  Fault Module Timestamp:   551b8b21
  Exception Code:   c0000005
  Exception Offset: 00066ccf
  OS Version:   6.3.9600.2.0.0.256.48
  Locale ID:    1049
  Additional Information 1: 5861
  Additional Information 2: 5861822e1919d7c014bbb064c64908b2
  Additional Information 3: a10f
  Additional Information 4: a10ff7d2bb2516fdc753f9c34fc3b069

有时它会在 "OpenQA.Selenium.WebDriverTimeoutException : Timed out after 30 seconds" at DefaultWait.Until

这样的代码处失败

        IWait<IWebDriver> wait = new WebDriverWait(driver, TimeSpan.FromSeconds(30.00));
        try
        {
            wait.Until(driver1 => ((IJavaScriptExecutor)driver).ExecuteScript("return document.readyState").Equals("complete"));
        }
        catch (InvalidOperationException ex) // js error { /*...*/  }

IISExpress日志也无济于事。它只写一些最后的请求并终止：

Request started: "POST" http://localhost:9090/signalr/abort?transport=webSockets...
Request ended: http://localhost:9090/signalr/connect?transport=webSockets...  with HTTP status 101.0
Request ended: http://localhost:9090/signalr/abort?transport=webSockets&clientProtocol=1.4.... with HTTP status 200.0
WriteCompletedInline
Action = 00000002
Action = 00000000
Request ended: http://localhost:9090/signalr/connect?transport=webSockets....  with HTTP status 101.0
Request ended: http://localhost:9090/BotDetectCaptcha.ashx?get=image&c=SampleCaptcha&t=44c45e60afac46809bfce16e123b54a2 with HTTP status 200.0

在Administrator下测试运行也无济于事。当 R# test 运行ner 触发测试时也是如此。

如果您有任何想法，我们将不胜感激。谢谢！

Answer 1

以防有人帮助我通过重新安装 IIS Express 解决问题。 IIS Express 8.0 MSI 文件可在 here.

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"Access violation reading location" 在 IISExpress 10 中（在 webengine4.dll 中）与 Selenium IEDriver 12.6

"Access violation reading location" in IISExpress 10 (in webengine4.dll) with Selenium IEDriver 12.6

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