Visual Studio 2010 (win 7 x64) Selenium单元测试保持挂起

我尝试了几个小时，使一个自定义网站的Selenium驱动程序的单元测试。问题是，我的第一个测试用例总是悬而未决。我没有写过其他的。我尝试了几个不同的教程，但没有一个有效。我做了什么:

• 通过NuGet控制台安装Selenium WebDriver(有参考);
• 安装Selenium WebDriver。通过NuGet支持(有参考);
• 我甚至已经关闭了防火墙;

最后，我遵循这个页面上的教程。net-developer.de!教程也不起作用。它在vb.net中给出，但我已将其翻译为c#如下:

using System;
using System.Text;
using System.Collections.Generic;
using System.Linq;
using Microsoft.VisualStudio.TestTools.UnitTesting;
using OpenQA.Selenium;
using OpenQA.Selenium.Firefox;
using OpenQA.Selenium.Support.UI;
namespace FastMenuSeleniumTests
{
    /// <summary>
    /// Summary description for UnitTest1
    /// </summary>
    [TestClass]
    public class UnitTest1
    {
        public IWebDriver driver;
        const string BaseURL = "http://www.bing.com";
        public UnitTest1()
        {
            // do nothing
        }
        private TestContext testContextInstance;
        /// <summary>
        ///Gets or sets the test context which provides
        ///information about and functionality for the current test run.
        ///</summary>
        public TestContext TestContext
        {
            get
            {
                return testContextInstance;
            }
            set
            {
                testContextInstance = value;
            }
        }
        #region Additional test attributes
        //
        // You can use the following additional attributes as you write your tests:
        //
        // Use ClassInitialize to run code before running the first test in the class
        // [ClassInitialize()]
        // public static void MyClassInitialize(TestContext testContext) { }
        //
        // Use ClassCleanup to run code after all tests in a class have run
        // [ClassCleanup()]
        // public static void MyClassCleanup() { }
        //
        // Use TestInitialize to run code before running each test 
        [TestInitialize()]
        public void TestInitialization() 
        {
            driver = new FirefoxDriver();
            //System.Threading.Thread.CurrentThread.CurrentCulture = new System.Globalization.CultureInfo("en");
            //System.Threading.Thread.CurrentThread.CurrentUICulture = new System.Globalization.CultureInfo("en");
        }
        //
        // Use TestCleanup to run code after each test has run
        [TestCleanup()]
        public void TestCleanup() 
        {
            driver.Quit();
        }
        //
        #endregion
        [TestMethod]
        public void TestMethod1()
        {
            IWebElement SearchBox = default(IWebElement);
            IWebElement FirstResult = default(IWebElement);
            //Go to Bing Homepage
            driver.Navigate().GoToUrl(BaseURL);
            //Get Handle for Searchbox
            SearchBox = GetWebElement(driver, By.Id("sb_form_q"), 10);
            //Enter Search Text
            SearchBox.SendKeys("dotnet-developer.de");
            //Different ways to start the search
            //Method 1: Press ENTER
            SearchBox.SendKeys(Keys.Enter);
            //Method 2: Grab Search-Button and click it
            //Dim SearchButton As IWebElement
            //SearchButton = GetWebElement(driver, By.Id("sb_form_go"), 10)
            //SearchButton.Click()
            //Now get the first result returned by Bing search
            FirstResult = GetWebElement(driver, By.XPath("//ul[@class='sb_results']/li/div/div/div/h3/a"), 10);
            //Method 1: Compare the subject
            string ExpectedText = "dotnet-developer.de | Tips for vb.net,…";
            Assert.AreEqual(ExpectedText, FirstResult.Text, "Subject is not correct");
            //Method 2: Compare the link
            string ExpectedURL = "http://www.dotnet-developer.de/";
            Assert.AreEqual(ExpectedURL, FirstResult.GetAttribute("href"), "URL is not correct!");
        }
        /// <summary>
        /// Retrieve Web Element using default driver and default timeout
        /// </summary>
        /// <param name="definition">Definition of the WebElement to grab</param>
        /// <returns></returns>
        /// <remarks></remarks>
        private IWebElement GetWebElement(OpenQA.Selenium.By definition)
        {
            const int DefaultTimeout = 10;
            return GetWebElement(definition, DefaultTimeout);
        }
        /// <summary>
        /// Retrieve Web Element using default driver
        /// </summary>
        /// <param name="definition">Definition of the WebElement to grab</param>
        /// <param name="timeoutSeconds">Seconds to wait until a timeout is thrown</param>
        /// <returns></returns>
        /// <remarks></remarks>
        private IWebElement GetWebElement(OpenQA.Selenium.By definition, int timeoutSeconds)
        {
            return GetWebElement(driver, definition, timeoutSeconds);
        }
        /// <summary>
        /// Waits until the given element is enabled and visible
        /// </summary>
        /// <param name="webDriver"></param>
        /// <param name="definition"></param>
        /// <param name="seconds"></param>
        /// <returns></returns>
        /// <remarks>Needs to wait for .displayed because for e.g. in a collapsed Treeview all nodes are available but not visible 
        /// if the parent node is collapsed and therefore the following error would appear:
        /// OpenQA.Selenium.ElementNotVisibleException: Element is not currently visible and so may not be interacted with
        /// </remarks>
        private IWebElement GetWebElement(IWebDriver webDriver, OpenQA.Selenium.By definition, int seconds)
        {
            WebDriverWait wait = new WebDriverWait(webDriver, TimeSpan.FromSeconds(seconds));
            wait.Until(d => { return d.FindElement(definition).Enabled & d.FindElement(definition).Displayed; });
            return webDriver.FindElement(definition);
        }
    }
}