Webdriver 测试因 System.Net.WebException 超时而失败

Question

C#

.Net 4.5

对比 2013

NUnit 3.2.1

Webdriver 和 Webdriver.Support2.53

所以我的问题是我正在尝试导航到 ebay 的沙箱登录页面并登录。这看起来很简单，但在给我一个 System.Net.WebException 超时错误之前，我正在努力让页面完全加载。

这是 link 我想去的 https://signin.sandbox.ebay.com/

这就是我的代码执行此操作的样子。

var EbaySandboxPage = new EbaySandboxLoginPageModel(Driver);
Driver.Manage().Timeouts().SetPageLoadTimeout(TimeSpan.FromSeconds(200));
Driver.Navigate().GoToUrl(EbaySandboxLoginPageModel.sandboxUrl);

这是每次我在 Firefox 中尝试此操作时抛出的异常。

Test Name:  VerifyItemsSold
Test FullName: POMAuctivaTest.TestSuite.PostSaleTestSuite<FirefoxDriver>.VerifyItemsSold
Test Source:    c:\git\POMAuctivaTest\POMAuctivaTest.TestSuite\PostSaleTestSuite.cs : line 204
Test Outcome:   Failed
Test Duration:  0:00:00.0000001

Result Message: 
OneTimeSetUp: OpenQA.Selenium.WebDriverException : The HTTP request to the remote WebDriver server for URL http://localhost:7055/hub/session/80efbcbe-841d-4a53-a422-5e7498a0438b/element timed out after 60 seconds.
----> System.Net.WebException : The operation has timed out

所以我的问题是如何更改 System.Net.WebRequest.Timeout 属性？我没有使用 webrequest 的实例。我猜 webdriver 是，但我想我有办法改变这个值。如您所见，我已经将 SetPageLoadTimeout() 值提高到超过 2 分钟。在我的手动测试中，这已经足够了。

这是我对@Buaban 的解决方案的尝试，尽管我的仍然抛出异常。

        Driver.Manage().Timeouts().SetPageLoadTimeout(TimeSpan.FromSeconds(120));
        try
        {
            Driver.Navigate().GoToUrl(EbaySandboxLoginPageModel.sandboxUrl);
        }
        catch (WebDriverException)
        {

        }
        EbaySandboxPage.WaitForElementVisible(Driver, EbaySandboxLoginPageModel.usernameFieldSelector);

这是 WaitForElementVisible() 方法的样子。

    public void WaitForElementVisible(IWebDriver driver, By element)
    {
        try
        {
            WebDriverWait wait = new WebDriverWait(driver, TimeSpan.FromSeconds(90));
            wait.Until(ExpectedConditions.ElementIsVisible(element));
        }
        catch (WebDriverTimeoutException)
        {
            TakeScreenshot(Driver);
            Console.Write("Test failed trying to wait for this element " + element.ToString() + " to be visible ");
        }
    }

这里是usernameFieldSelector

的定义

public static By usernameFieldSelector = By.CssSelector("#userid");

Answer 1

正如 Florent B. 在评论中提到的，一些页面资源已经失效。您必须忽略异常，然后等待页面上的元素。请参见下面的示例：

Driver.Manage().Timeouts().SetPageLoadTimeout(TimeSpan.FromSeconds(30));
try
{
    Driver.Navigate().GoToUrl(@"https://signin.sandbox.ebay.com/");
}
catch (Exception)
{
    System.Diagnostics.Debug.WriteLine("Some resources are dead!");
}
IWait<IWebDriver> wait = new DefaultWait<IWebDriver>(Driver);
wait.Timeout = TimeSpan.FromSeconds(10);
wait.PollingInterval = TimeSpan.FromMilliseconds(300);
wait.Until(d => d.FindElements(By.XPath("//span[text()='SIGN IN']")).Count > 0);

System.Diagnostics.Debug.WriteLine("SIGN IN textbox is loaded");

Answer 2

非常感谢您的@Florent 和@Buaban，在您的帮助下我找到了解决方案。我会 post 它在这里，但将答案授予你的 Buaban，因为我不确定如果没有你的帮助我是否能够尽快得到这个。

        Driver.Manage().Timeouts().SetPageLoadTimeout(TimeSpan.FromSeconds(30));
        try
        {
            Driver.Navigate().GoToUrl(@"https://signin.sandbox.ebay.com/");
        }
        catch (Exception)
        {
            System.Diagnostics.Debug.WriteLine("Some resources are dead!");
        }
        var attempts = 0;
        while (attempts < 2)
        {
            try
            {
                IWait<IWebDriver> wait = new DefaultWait<IWebDriver>(Driver);
                wait.Timeout = TimeSpan.FromSeconds(20);
                wait.PollingInterval = TimeSpan.FromMilliseconds(300);
                wait.Until(d => d.FindElements(By.XPath("//span[text()='SIGN IN']")).Count > 0);
                break;
            }
            catch (WebDriverException)
            {
                attempts++;
            }
        }

Webdriver 测试因 System.Net.WebException 超时而失败

Webdriver tests failing due to System.Net.WebException timeout

c#

selenium

nunit

selenium-webdriver