1 files changed, 35 insertions, 0 deletions
diff --git a/browser/components/customizableui/test/browser_bookmarks_toolbar_collapsed_restore_default.js b/browser/components/customizableui/test/browser_bookmarks_toolbar_collapsed_restore_default.js
new file mode 100644
index 0000000000..84ddc37d29
--- /dev/null
+++ b/browser/components/customizableui/test/browser_bookmarks_toolbar_collapsed_restore_default.js
@@ -0,0 +1,35 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+"use strict";
+
+// Restoring default should set Bookmarks Toolbar back to "newtab"
+add_task(async function () {
+  let prefName = "browser.toolbars.bookmarks.visibility";
+  let toolbar = document.querySelector("#PersonalToolbar");
+  for (let state of ["always", "never"]) {
+    info(`Testing setting toolbar state to '${state}'`);
+
+    await resetCustomization();
+    ok(CustomizableUI.inDefaultState, "Default state to begin");
+
+    setToolbarVisibility(toolbar, state, true, false);
+
+    is(
+      Services.prefs.getCharPref(prefName),
+      state,
+      "Pref updated to: " + state
+    );
+    ok(!CustomizableUI.inDefaultState, "Not in default state");
+
+    await resetCustomization();
+
+    ok(CustomizableUI.inDefaultState, "Back in default state after reset");
+    is(
+      Services.prefs.getCharPref(prefName),
+      "newtab",
+      "Pref should get reset to 'newtab'"
+    );
+  }
+});