尝试使用Nunit运行多个Selenium Webdriver测试失败

我想知道是否有人可以帮助我。 我正在使用selenium Webdriver与C＃和Nunit，当我尝试运行多个测试时，我收到以下错误：

OpenQA.Selenium.WebDriverException：意外错误。 System.Net.WebException：无法连接到远程服务器—> System.Net.Sockets.SocketException：无法建立连接，因为目标计算机在System.Net.Sockets.Socket上主动拒绝它127.0.0.1:7055 .DoConnect（EndPoint endPointSnapshot，SocketAddress socketAddress）

当我作为个人运行这些测试时，他们正在运行并且传递正常。

任何帮助或指针都会很棒。

下面是我的代码和我的驱动程序类的示例

司机类

using System; using System.Configuration; using OpenQA.Selenium; using OpenQA.Selenium.Chrome; using OpenQA.Selenium.Firefox; using OpenQA.Selenium.IE; namespace SMT.Web.FunctionalTests.Drivers { public class Driver { private static IWebDriver _driver; protected static IWebDriver GetWebDriver { get { if (_driver == null) { string driverConfig = ConfigurationManager.AppSettings["browser"]; if (!String.IsNullOrEmpty(driverConfig)) { switch (ConfigurationManager.AppSettings["browser"]) { case "Chrome": _driver = new ChromeDriver(); ConfigureDriver(); break; case "Firefox": _driver = new FirefoxDriver(); ConfigureDriver(); break; case "IE": _driver = new InternetExplorerDriver(); ConfigureDriver(); break; default: Console.WriteLine("App.config key error"); Console.WriteLine("Defaulting to FireFox"); _driver = new FirefoxDriver(); ConfigureDriver(); break; } } else { Console.WriteLine("* * * * DEFAULT MODE * * * *"); Console.WriteLine("Defaulting to Firefox"); _driver = new FirefoxDriver(); ConfigureDriver(); } } return _driver; } } internal static void ConfigureDriver(string page = "") { string url = ConfigurationManager.AppSettings["URL"]; _driver.Manage().Timeouts().ImplicitlyWait(new TimeSpan(0, 0, 30)); _driver.Manage().Cookies.DeleteAllCookies(); _driver.Manage().Window.Maximize(); _driver.Navigate().GoToUrl(string.Concat(url, page)); } public static void Close() { _driver.Close(); } } } 

测试类

 public class LoginRegressionTests : Driver { public static IWebDriver WebDriver { get; set; } public AjaxHelpers AjaxHelpers; public DatabaseHelpers DatabaseHelpers; [SetUp] public void Setup() { DatabaseHelpers = new DatabaseHelpers(); DatabaseHelpers.DatabaseSetUpClearDown(); WebDriver = GetWebDriver; AjaxHelpers = new AjaxHelpers(WebDriver); } [TearDown] public void Teardown() { WebDriver.Close(); } [Test] public void LoginWithIncorrectUserNamePasswordTest() { // Create an Instance of Header Banner Page Object var headerBannerPage = new HeaderBannerPage(WebDriver); headerBannerPage.ClickSigninLink(); // Create an Instance of Login Page Object var loginPage = new LoginPage(WebDriver); loginPage.EnterCustomerUsername("[e-mail]"); loginPage.EnterCustomerPassword("*&^%£$£"); loginPage.ClickLoginCustomerButton(); AjaxHelpers.WaitForAjax(); String usernameRequiredBorderBottom = WebDriver.FindElement(By.CssSelector("#login-username")).GetCssValue("border-bottom-color"); String usernameRequiredBorderLeft = WebDriver.FindElement(By.CssSelector("#login-username")).GetCssValue("border-left-color"); String usernameRequiredBorderRight = WebDriver.FindElement(By.CssSelector("#login-username")).GetCssValue("border-right-color"); String usernameRequiredBorderTop = WebDriver.FindElement(By.CssSelector("#login-username")).GetCssValue("border-top-color"); Assert.AreEqual(usernameRequiredBorderBottom, "rgba(181, 79, 80, 1)"); Assert.AreEqual(usernameRequiredBorderLeft, "rgba(181, 79, 80, 1)"); Assert.AreEqual(usernameRequiredBorderRight, "rgba(181, 79, 80, 1)"); Assert.AreEqual(usernameRequiredBorderTop, "rgba(181, 79, 80, 1)"); String passwordrequiredBorderBottom = WebDriver.FindElement(By.CssSelector("#login-password")).GetCssValue("border-bottom-color"); String passwordrequiredBorderLeft = WebDriver.FindElement(By.CssSelector("#login-password")).GetCssValue("border-left-color"); String passwordrequiredBorderRight = WebDriver.FindElement(By.CssSelector("#login-password")).GetCssValue("border-right-color"); String passwordrequiredBorderTop = WebDriver.FindElement(By.CssSelector("#login-password")).GetCssValue("border-top-color"); Assert.AreEqual(passwordrequiredBorderBottom, "rgba(181, 79, 80, 1)"); Assert.AreEqual(passwordrequiredBorderLeft, "rgba(181, 79, 80, 1)"); Assert.AreEqual(passwordrequiredBorderRight, "rgba(181, 79, 80, 1)"); Assert.AreEqual(passwordrequiredBorderTop, "rgba(181, 79, 80, 1)"); } }