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Recently one of my tests suddenly failed after adding ASP.NET AJAX UpdatePanels to the page. The problem turned out to be that after a Click, we normally issue a WaitForPageToLoad before continuing testing on the next page. This makes sure that the next page (after a postback) is fully loaded before we do the next test action. When using UpdatePanel postbacks, the page is never really submitted and no onLoad event ever happens in the browser. This makes WaitForPageToLoad time out.

Selenium is rather flexible and you can do a lot of custom tests in javascript, but you have to know how. It took me some time, but here it is: make Selenium wait until an UpdatePanel postback has finished:

selenium.WaitForCondition( "var busyFunc = selenium.browserbot.getCurrentWindow(). Sys.WebForms.PageRequestManager.get_inPostBack; busy = (busyFunc == null)?true:busy = busyFunc(); busy == false;", "10000");

# posted by Teun @ 9:25 AM