1 files changed, 46 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 0000000000..bd0a7d5795
--- /dev/null
+++ b/browser/components/customizableui/test/browser_918049_skipintoolbarset_dnd.js
@@ -0,0 +1,46 @@
+/* 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(async function () {
+  navbar = document.getElementById("nav-bar");
+  skippedItem = document.createXULElement("toolbarbutton");
+  skippedItem.id = "test-skipintoolbarset-item";
+  skippedItem.setAttribute("label", "Test");
+  skippedItem.setAttribute("skipintoolbarset", "true");
+  skippedItem.setAttribute("removable", "true");
+  CustomizableUI.getCustomizationTarget(navbar).appendChild(skippedItem);
+  let stopReloadButton = document.getElementById("stop-reload-button");
+  await startCustomizing();
+  await waitForElementShown(skippedItem);
+  ok(CustomizableUI.inDefaultState, "Should still be in default state");
+  simulateItemDrag(skippedItem, stopReloadButton, "start", 0);
+  ok(CustomizableUI.inDefaultState, "Should still be in default state");
+  let skippedItemWrapper = skippedItem.parentNode;
+  is(
+    skippedItemWrapper.nextElementSibling &&
+      skippedItemWrapper.nextElementSibling.id,
+    stopReloadButton.parentNode.id,
+    "Should be next to stop/reload button"
+  );
+  simulateItemDrag(stopReloadButton, skippedItem, "start", 0);
+  let wrapper = stopReloadButton.parentNode;
+  is(
+    wrapper.nextElementSibling && wrapper.nextElementSibling.id,
+    skippedItem.parentNode.id,
+    "Should be next to skipintoolbarset item"
+  );
+  ok(CustomizableUI.inDefaultState, "Should still be in default state");
+});
+
+add_task(async function asyncCleanup() {
+  await endCustomizing();
+  skippedItem.remove();
+  await resetCustomization();
+});