1 files changed, 33 insertions, 0 deletions
diff --git a/browser/base/content/test/favicons/browser_favicon_change.js b/browser/base/content/test/favicons/browser_favicon_change.js
new file mode 100644
index 0000000000..8faf266665
--- /dev/null
+++ b/browser/base/content/test/favicons/browser_favicon_change.js
@@ -0,0 +1,33 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+const TEST_ROOT =
+  "http://mochi.test:8888/browser/browser/base/content/test/favicons/";
+const TEST_URL = TEST_ROOT + "file_favicon_change.html";
+
+add_task(async function () {
+  let extraTab = (gBrowser.selectedTab = BrowserTestUtils.addTab(gBrowser));
+  let haveChanged = waitForFavicon(
+    extraTab.linkedBrowser,
+    TEST_ROOT + "file_bug970276_favicon1.ico"
+  );
+
+  BrowserTestUtils.loadURIString(extraTab.linkedBrowser, TEST_URL);
+  await BrowserTestUtils.browserLoaded(extraTab.linkedBrowser);
+  await haveChanged;
+
+  haveChanged = waitForFavicon(extraTab.linkedBrowser, TEST_ROOT + "moz.png");
+
+  SpecialPowers.spawn(extraTab.linkedBrowser, [], function () {
+    let ev = new content.CustomEvent("PleaseChangeFavicon", {});
+    content.dispatchEvent(ev);
+  });
+
+  await haveChanged;
+
+  ok(true, "Saw all the icons we expected.");
+
+  gBrowser.removeTab(extraTab);
+});