1 files changed, 37 insertions, 0 deletions
diff --git a/browser/base/content/test/favicons/browser_multiple_icons_in_short_timeframe.js b/browser/base/content/test/favicons/browser_multiple_icons_in_short_timeframe.js
new file mode 100644
index 0000000000..80a45a9288
--- /dev/null
+++ b/browser/base/content/test/favicons/browser_multiple_icons_in_short_timeframe.js
@@ -0,0 +1,37 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+add_task(async function () {
+  const ROOT =
+    "http://mochi.test:8888/browser/browser/base/content/test/favicons/";
+  const URL = ROOT + "discovery.html";
+
+  let iconPromise = waitForFaviconMessage(
+    true,
+    "http://mochi.test:8888/favicon.ico"
+  );
+  let tab = await BrowserTestUtils.openNewForegroundTab(gBrowser, URL);
+  let icon = await iconPromise;
+
+  await SpecialPowers.spawn(gBrowser.selectedBrowser, [ROOT], root => {
+    let doc = content.document;
+    let head = doc.head;
+    let link = doc.createElement("link");
+    link.rel = "icon";
+    link.href = root + "rich_moz_1.png";
+    link.type = "image/png";
+    head.appendChild(link);
+    let link2 = link.cloneNode(false);
+    link2.href = root + "rich_moz_2.png";
+    head.appendChild(link2);
+  });
+
+  icon = await waitForFaviconMessage();
+  Assert.equal(
+    icon.iconURL,
+    ROOT + "rich_moz_2.png",
+    "The expected icon has been set"
+  );
+
+  BrowserTestUtils.removeTab(tab);
+});