1 files changed, 44 insertions, 0 deletions
diff --git a/browser/components/extensions/test/browser/browser_ext_tabs_move_window_pinned.js b/browser/components/extensions/test/browser/browser_ext_tabs_move_window_pinned.js
new file mode 100644
index 0000000000..b2953dea48
--- /dev/null
+++ b/browser/components/extensions/test/browser/browser_ext_tabs_move_window_pinned.js
@@ -0,0 +1,44 @@
+/* -*- Mode: indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* vim: set sts=2 sw=2 et tw=80: */
+"use strict";
+
+add_task(async function () {
+  let extension = ExtensionTestUtils.loadExtension({
+    manifest: {
+      permissions: ["tabs"],
+    },
+
+    async background() {
+      const URL = "http://example.com/";
+
+      let mainWin = await browser.windows.getCurrent();
+      let tab = await browser.tabs.create({ url: URL });
+
+      let newWin = await browser.windows.create({ url: URL });
+      let tab2 = newWin.tabs[0];
+      await browser.tabs.update(tab2.id, { pinned: true });
+
+      // Try to move a tab before the pinned tab.  The move should be ignored.
+      let moved = await browser.tabs.move(tab.id, {
+        windowId: newWin.id,
+        index: 0,
+      });
+      browser.test.assertEq(moved.length, 0, "move() returned no moved tab");
+
+      tab = await browser.tabs.get(tab.id);
+      browser.test.assertEq(
+        tab.windowId,
+        mainWin.id,
+        "Tab stayed in its original window"
+      );
+
+      await browser.tabs.remove(tab.id);
+      await browser.windows.remove(newWin.id);
+      browser.test.notifyPass("tabs.move.pin");
+    },
+  });
+
+  await extension.startup();
+  await extension.awaitFinish("tabs.move.pin");
+  await extension.unload();
+});