硒和Internet Explorer驱动程序

Question

I'm trying to run some tests with C# and InternetExplorerDriver.

This code is executed on Windows Server 2012, 64 bit.

Right after navigation to a new URL, I'm calling a function that waits until a page loads\\20 seconds timeout.

private bool waitForPageToLoad()
    {
        try
        {
            int timeout = int.Parse(ConfigurationManager.AppSettings["TimeoutForCustomExpression"]);
            IWait<IWebDriver> wait = new OpenQA.Selenium.Support.UI.WebDriverWait(m_driver, TimeSpan.FromSeconds(timeout));

            wait.Until(driver1 => ((IJavaScriptExecutor)m_driver).ExecuteScript("return document.readyState").Equals("complete"));
        }
        catch//(Exception e) //timeout
        {
            log(e.Message + e.StackTrace);
            return false;
        }
        return true;
    }

The function works great for every browser other than IE.

On IE, I the following error in my log:

JavaScript error (UnexpectedJavaScriptError) at OpenQA.Selenium.Support.UI.DefaultWait 1.PropagateExceptionIfNotIgnored(Exception e) in c:\\Projects\\WebDriver\\trunk\\dotnet\\src\\WebDriver.Support\\UI\\DefaultWait.cs:line 222 at OpenQA.Selenium.Support.UI.DefaultWait 1.Until[TResult](Func`2 condition) in c:\\Projects\\WebDriver\\trunk\\dotnet\\src\\WebDriver.Support\\UI\\DefaultWait.cs:line 180 at MainClass.waitForPageToLoad()

I have no idea why it happens. Could somebody help me out here?

Sincerely, Adam.

Answer 1

Without seeing all that extra information that Arran requested, it's hard to help you understand the error. However if you're just looking for a quick fix that works in all browsers, I always just use Thread.sleep(int milliseconds); for my Selenium tests in C# that need to wait for a page to load or a certain element to render before continuing.