Wait for an Ajax call to complete with Selenium 2 WebDriver

Omu picture Omu · Jun 1, 2011 · Viewed 85.4k times · Source

I'm using Selenium 2 WebDriver to test an UI which uses AJAX.

Is there a way to make the driver to wait for a bit that the Ajax request will complete.

Basically I have this :

d.FindElement(By.XPath("//div[8]/div[3]/div/button")).Click();
// This click trigger an ajax request which will fill the below ID with content.
// So I need to make it wait for a bit.

Assert.IsNotEmpty(d.FindElement(By.Id("Hobbies")).Text);

Answer

Morten Christiansen picture Morten Christiansen · Aug 26, 2011

If you're using jQuery for your ajax requests, you can wait until the jQuery.active property is zero. Other libraries might have similar options.

public void WaitForAjax()
{
    while (true) // Handle timeout somewhere
    {
        var ajaxIsComplete = (bool)(driver as IJavaScriptExecutor).ExecuteScript("return jQuery.active == 0");
        if (ajaxIsComplete)
            break;
        Thread.Sleep(100);
    }
}