如何在使用SeleniumWebDriver和NUnitC#并行运行测试后关闭多个浏览器窗口

我目前使用以下代码在每次测试后关闭浏览器：

[TearDown]
public void StopBrowser()
{
if (Driver == null)
return;
Driver.Quit();
}

当运行单个测试时，这很好。但是，当我使用NUnit的[Palallelizable]标记在Parallel中运行多个测试时，由于没有这样的会话错误，我的测试开始失败，无法连接到远程服务器错误，然后顶部出现对象引用错误，所以这肯定与并行测试有关。

请在下面找到我在[SetUp]方法中使用的代码：

public IWebDriver Driver { get; set; }
public string TestUrl;
[SetUp]
public void Setup()
{
string Browser = "Chrome";
if (Browser == "Chrome")
{
ChromeOptions options = new ChromeOptions();
options.AddArgument("--start-maximized");
Driver = new ChromeDriver(options);
}
else if (Browser == "Firefox")
{
FirefoxDriverService service = FirefoxDriverService.CreateDefaultService();
service.FirefoxBinaryPath = @"C:Program Files (x86)Mozilla Firefoxfirefox.exe";
Driver = new FirefoxDriver(service);
}
else if (Browser == "Edge")
{
EdgeDriverService service = EdgeDriverService.CreateDefaultService();
Driver = new EdgeDriver(service);
}

BasePage代码：

public class BasePage<TObjectRepository> where TObjectRepository : BasePageObjectRepository
{
public BasePage(IWebDriver driver, TObjectRepository repository)
{
Driver = driver;
ObjectRepository = repository;
}

public IWebDriver Driver { get; }
internal TObjectRepository ObjectRepository { get; }
}

BasePageObjectRepository代码：

public class BasePageObjectRepository
{
protected readonly IWebDriver Driver;
public BasePageObjectRepository(IWebDriver driver)
{
Driver = driver;
}
}

我的测试只需调用相关页面中的特定函数，然后页面中的代码只需具有指向页面对象存储库(即(中元素的Selenium代码

ObjectRepository.LoginButton.Click();

我不确定我设置测试的方式是否是导致问题的部分原因，但如果我能在这方面得到任何帮助，将不胜感激

编辑：在中添加了更多我的代码以帮助：

基本测试类别：

[TestFixture]
public class BaseTest
{
public IWebDriver Driver { get; set; }
public string TestUrl;

[SetUp]
public void Setup()
{
string Browser = "Chrome";
if (Browser == "Chrome")
{
ChromeOptions options = new ChromeOptions();
options.AddArgument("--start-maximized");
Driver = new ChromeDriver(options);
}
else if (Browser == "Firefox")
{
FirefoxDriverService service = FirefoxDriverService.CreateDefaultService();
service.FirefoxBinaryPath = @"C:Program Files (x86)Mozilla Firefoxfirefox.exe";
Driver = new FirefoxDriver(service);
}
else if (Browser == "Edge")
{
EdgeDriverService service = EdgeDriverService.CreateDefaultService();
Driver = new EdgeDriver(service);
}
Driver.Manage().Window.Maximize();
string Environment;
Environment = "Test";

if (Environment == "Test")
{
TestUrl = "https://walberton-test.azurewebsites.net/";
}
else if (Environment == "Live")
{
TestUrl = "";
}
}
}
[OneTimeTearDown]
public void TeardownAllBrowsers()
{
Driver.Close();
Driver.Quit();
}

其中一个测试示例：

[TestFixture]
public class TimeLogsTestChrome: BaseTest
{
[Test]
[Parallelizable]
[Category("Time Logs Test for Chrome")]
public void AssertTimeLogsHeading()
{
Driver = new ChromeDriver();
Driver.Manage().Window.Maximize();
var loginPage = new LoginPage(Driver);
var dashboard = new Dashboard(Driver);
var timeSheets = new Timesheets(Driver);
loginPage.GoTo("Test");
loginPage.EnterEmailAddress("Valid");
loginPage.EnterPassword("Valid");
loginPage.ClickLoginButtonForLoginToDashboard();
dashboard.ClickTimesheetsButton();
timeSheets.AssertHeading();
Driver.Close();
}
}

测试的基础代码示例：

internal class Timesheets : BasePage<TimesheetsPageObjectRepository>
{
public Timesheets(IWebDriver driver) : base(driver, new TimesheetsPageObjectRepository(driver))
{
}
internal void AssertHeading()
{
try
{
Assert.AreEqual("Timesheets", ObjectRepository.TimesheetHeading);
}
catch (Exception ex)
{
throw;
}
}
internal void ClickAddTimesheetButton()
{
ObjectRepository.AddTimesheetButton.Click();
}
internal void ClickSubmitTimeButton()
{
ObjectRepository.SubmitTimeButton.Click();
Thread.Sleep(5000);
}
}

具有大部分FindElement代码的页面对象存储库的部分示例：

internal class TimesheetsPageObjectRepository : BasePageObjectRepository
{
public TimesheetsPageObjectRepository(IWebDriver driver) : base(driver) { }
public string TimesheetHeading => Driver.FindElement(By.ClassName("pull-left")).Text;

}