gecko-dev/browser/base/content/test/favicons/browser_invalid_href_fallback.js

/* Any copyright is dedicated to the Public Domain.
 * http://creativecommons.org/publicdomain/zero/1.0/ */

add_task(async () => {
  const testPath = "http://example.com/browser/browser/base/content/test/favicons/";
  const expectedIcon = "http://example.com/favicon.ico";

  await BrowserTestUtils.withNewTab({ gBrowser, url: "about:blank" }, async (browser) => {
    let faviconPromise = waitForLinkAvailable(browser);
    BrowserTestUtils.loadURI(browser, testPath + "file_invalid_href.html");
    await BrowserTestUtils.browserLoaded(browser);

    let iconURI = await faviconPromise;
    Assert.equal(iconURI, expectedIcon,
      "Should have fallen back to the default site favicon for an invalid href attribute");
  });
});