1 files changed, 38 insertions, 0 deletions
diff --git a/browser/components/customizableui/test/browser_918049_skipintoolbarset_dnd.js b/browser/components/customizableui/test/browser_918049_skipintoolbarset_dnd.js
new file mode 100644
index 000000000..dffe388dc
--- /dev/null
+++ b/browser/components/customizableui/test/browser_918049_skipintoolbarset_dnd.js
@@ -0,0 +1,38 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+var navbar;
+var skippedItem;
+
+// Attempting to drag a skipintoolbarset item should work.
+add_task(function*() {
+  navbar = document.getElementById("nav-bar");
+  skippedItem = document.createElement("toolbarbutton");
+  skippedItem.id = "test-skipintoolbarset-item";
+  skippedItem.setAttribute("label", "Test");
+  skippedItem.setAttribute("skipintoolbarset", "true");
+  skippedItem.setAttribute("removable", "true");
+  navbar.customizationTarget.appendChild(skippedItem);
+  let downloadsButton = document.getElementById("downloads-button");
+  yield startCustomizing();
+  ok(CustomizableUI.inDefaultState, "Should still be in default state");
+  simulateItemDrag(skippedItem, downloadsButton);
+  ok(CustomizableUI.inDefaultState, "Should still be in default state");
+  let skippedItemWrapper = skippedItem.parentNode;
+  is(skippedItemWrapper.nextSibling && skippedItemWrapper.nextSibling.id,
+     downloadsButton.parentNode.id, "Should be next to downloads button");
+  simulateItemDrag(downloadsButton, skippedItem);
+  let downloadWrapper = downloadsButton.parentNode;
+  is(downloadWrapper.nextSibling && downloadWrapper.nextSibling.id,
+     skippedItem.parentNode.id, "Should be next to skipintoolbarset item");
+  ok(CustomizableUI.inDefaultState, "Should still be in default state");
+});
+
+add_task(function* asyncCleanup() {
+  yield endCustomizing();
+  skippedItem.remove();
+  yield resetCustomization();
+});