How to check URL for 404 using Selenium WebDriver?

Question

What is the most convenient way using Selenium WebDriver to check if an URL GET returns successfully (HTTP 200)?

In this particular case I\'m most interested in verifyin

Answer 1

I don't think that first response will work. When I src a misnamed image, it throws a 404 error as expected. However, when I check the javascript in firebug, that (broken) image has .complete set to true. So, it was a completed 404, but still a broken image.

The second response seems to be more accurate in that it checks that it's complete and then checks that there is some width to the image.

I made a python version of the second response that works for me. Could be cleaned up a bit, but hopefully it will help.

def checkForBrokenImages(self):
    sel = self.selenium
    imgCount = int(sel.get_xpath_count("//img"))
    for i in range(0,imgCount):
        isComplete = sel.get_eval("selenium.browserbot.getCurrentWindow().document.images[" + str(i) + "].complete")
        self.assertTrue(isComplete, "Bad Img (!complete): "+sel.get_eval("selenium.browserbot.getCurrentWindow().document.images[" + str(i) + "].src"))
        typeOf = sel.get_eval("typeof selenium.browserbot.getCurrentWindow().document.images[" + str(i) + "].naturalWidth")
        self.assertTrue(typeOf != 'undefined', "Bad Img (w=undef): "+sel.get_eval("selenium.browserbot.getCurrentWindow().document.images[" + str(i) + "].src"))
        natWidth = int(sel.get_eval("selenium.browserbot.getCurrentWindow().document.images[" + str(i) + "].naturalWidth"))
        self.assertTrue(natWidth > 0, "Bad Img (w=0): "+sel.get_eval("selenium.browserbot.getCurrentWindow().document.images[" + str(i) + "].src"))