1 files changed, 53 insertions, 0 deletions
diff --git a/browser/components/sessionstore/test/browser_label_and_icon.js b/browser/components/sessionstore/test/browser_label_and_icon.js
new file mode 100644
index 0000000000..9b254c5e77
--- /dev/null
+++ b/browser/components/sessionstore/test/browser_label_and_icon.js
@@ -0,0 +1,53 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+/**
+ * Ensure that a pending tab has label and icon correctly set.
+ */
+add_task(async function test_label_and_icon() {
+  // Make sure that tabs are restored on demand as otherwise the tab will start
+  // loading immediately and we can't check its icon and label.
+  await SpecialPowers.pushPrefEnv({
+    set: [["browser.sessionstore.restore_on_demand", true]],
+  });
+
+  // Create a new tab.
+  let tab = BrowserTestUtils.addTab(gBrowser, "about:robots");
+  let browser = tab.linkedBrowser;
+  await promiseBrowserLoaded(browser);
+  // Because there is debounce logic in ContentLinkHandler.jsm to reduce the
+  // favicon loads, we have to wait some time before checking that icon was
+  // stored properly.
+  await BrowserTestUtils.waitForCondition(
+    () => {
+      return gBrowser.getIcon(tab) != null;
+    },
+    "wait for favicon load to finish",
+    100,
+    5
+  );
+
+  // Retrieve the tab state.
+  await TabStateFlusher.flush(browser);
+  let state = ss.getTabState(tab);
+  BrowserTestUtils.removeTab(tab);
+  browser = null;
+
+  // Open a new tab to restore into.
+  tab = BrowserTestUtils.addTab(gBrowser, "about:blank");
+  ss.setTabState(tab, state);
+  await promiseTabRestoring(tab);
+
+  // Check that label and icon are set for the restoring tab.
+  is(
+    gBrowser.getIcon(tab),
+    "chrome://browser/content/robot.ico",
+    "icon is set"
+  );
+  is(tab.label, "Gort! Klaatu barada nikto!", "label is set");
+
+  // Cleanup.
+  BrowserTestUtils.removeTab(tab);
+});