How to check image requests for 404 using Selenium WebDriver?

Try this:

List<WebElement> allImages = driver.findElements(By.tagName("img"));for (WebElement image : allImages) {  boolean loaded = ((JavaScriptExecutor) driver).executeScript(      "return arguments[0].complete", image);  if (!loaded) {    // Your error handling here.  }}

You could use the getEval command to verify the value returned from the following JavaScript for each image on the page.

@Testpublic void checkForBrokenImages() {    selenium.open("http://www.example.com/");    int imageCount = selenium.getXpathCount("//img").intValue();    for (int i = 0; i < imageCount; i++) {        String currentImage = "this.browserbot.getUserWindow().document.images[" + i + "]";        assertEquals(selenium.getEval("(!" + currentImage + ".complete) ? false : !(typeof " + currentImage + ".naturalWidth != \"undefined\" && " + currentImage + ".naturalWidth == 0);"), "true", "Broken image: " + selenium.getEval(currentImage + ".src"));    }}

Updated:

Added tested TestNG/Java example.

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"))