1 files changed, 136 insertions, 0 deletions
diff --git a/browser/base/content/test/tabs/browser_multiselect_tabs_duplicate.js b/browser/base/content/test/tabs/browser_multiselect_tabs_duplicate.js
new file mode 100644
index 0000000000..d9f5e58669
--- /dev/null
+++ b/browser/base/content/test/tabs/browser_multiselect_tabs_duplicate.js
@@ -0,0 +1,136 @@
+async function openTabMenuFor(tab) {
+  let tabMenu = tab.ownerDocument.getElementById("tabContextMenu");
+
+  let tabMenuShown = BrowserTestUtils.waitForEvent(tabMenu, "popupshown");
+  EventUtils.synthesizeMouseAtCenter(
+    tab,
+    { type: "contextmenu" },
+    tab.ownerGlobal
+  );
+  await tabMenuShown;
+
+  return tabMenu;
+}
+
+add_task(async function test() {
+  let originalTab = gBrowser.selectedTab;
+  // eslint-disable-next-line @microsoft/sdl/no-insecure-url
+  let tab1 = await addTab("http://example.com/1");
+  // eslint-disable-next-line @microsoft/sdl/no-insecure-url
+  let tab2 = await addTab("http://example.com/2");
+  // eslint-disable-next-line @microsoft/sdl/no-insecure-url
+  let tab3 = await addTab("http://example.com/3");
+
+  let menuItemDuplicateTab = document.getElementById("context_duplicateTab");
+  let menuItemDuplicateTabs = document.getElementById("context_duplicateTabs");
+
+  is(gBrowser.multiSelectedTabsCount, 0, "Zero multiselected tabs");
+
+  await BrowserTestUtils.switchTab(gBrowser, tab1);
+  await triggerClickOn(tab2, { ctrlKey: true });
+
+  ok(tab1.multiselected, "Tab1 is multiselected");
+  ok(tab2.multiselected, "Tab2 is multiselected");
+  ok(!tab3.multiselected, "Tab3 is not multiselected");
+
+  // Check the context menu with a multiselected tabs
+  updateTabContextMenu(tab2);
+  is(menuItemDuplicateTab.hidden, true, "Duplicate Tab is hidden");
+  is(menuItemDuplicateTabs.hidden, false, "Duplicate Tabs is visible");
+
+  // Check the context menu with a non-multiselected tab
+  updateTabContextMenu(tab3);
+  is(menuItemDuplicateTab.hidden, false, "Duplicate Tab is visible");
+  is(menuItemDuplicateTabs.hidden, true, "Duplicate Tabs is hidden");
+
+  let newTabOpened = BrowserTestUtils.waitForNewTab(
+    gBrowser,
+    // eslint-disable-next-line @microsoft/sdl/no-insecure-url
+    "http://example.com/3",
+    true
+  );
+  {
+    let menu = await openTabMenuFor(tab3);
+    menu.activateItem(menuItemDuplicateTab);
+  }
+  let tab4 = await newTabOpened;
+
+  is(
+    getUrl(tab4),
+    getUrl(tab3),
+    "tab4 should have same URL as tab3, where it was duplicated from"
+  );
+
+  // Selection should be cleared after duplication
+  ok(!tab1.multiselected, "Tab1 is not multiselected");
+  ok(!tab2.multiselected, "Tab2 is not multiselected");
+  ok(!tab3.multiselected, "Tab3 is not multiselected");
+  ok(!tab4.multiselected, "Tab4 is not multiselected");
+
+  is(gBrowser.selectedTab._tPos, tab4._tPos, "Tab4 should be selected");
+
+  await BrowserTestUtils.switchTab(gBrowser, tab1);
+  await triggerClickOn(tab3, { ctrlKey: true });
+
+  ok(tab1.multiselected, "Tab1 is multiselected");
+  ok(!tab2.multiselected, "Tab2 is not multiselected");
+  ok(tab3.multiselected, "Tab3 is multiselected");
+  ok(!tab4.multiselected, "Tab4 is not multiselected");
+
+  // Check the context menu with a non-multiselected tab
+  updateTabContextMenu(tab3);
+  is(menuItemDuplicateTab.hidden, true, "Duplicate Tab is hidden");
+  is(menuItemDuplicateTabs.hidden, false, "Duplicate Tabs is visible");
+
+  // 7 tabs because there was already one open when the test starts.
+  // Can't use BrowserTestUtils.waitForNewTab because waitForNewTab only works
+  // with one tab at a time.
+  let newTabsOpened = TestUtils.waitForCondition(
+    () => gBrowser.visibleTabs.length == 7,
+    "Wait for two tabs to get created"
+  );
+  {
+    let menu = await openTabMenuFor(tab3);
+    menu.activateItem(menuItemDuplicateTabs);
+  }
+  await newTabsOpened;
+  info("Two tabs opened");
+
+  await TestUtils.waitForCondition(() => {
+    return (
+      // eslint-disable-next-line @microsoft/sdl/no-insecure-url
+      getUrl(gBrowser.visibleTabs[4]) == "http://example.com/1" &&
+      // eslint-disable-next-line @microsoft/sdl/no-insecure-url
+      getUrl(gBrowser.visibleTabs[5]) == "http://example.com/3"
+    );
+  });
+
+  is(
+    originalTab,
+    gBrowser.visibleTabs[0],
+    "Original tab should still be first"
+  );
+  is(tab1, gBrowser.visibleTabs[1], "tab1 should still be second");
+  is(tab2, gBrowser.visibleTabs[2], "tab2 should still be third");
+  is(tab3, gBrowser.visibleTabs[3], "tab3 should still be fourth");
+  is(
+    getUrl(gBrowser.visibleTabs[4]),
+    getUrl(tab1),
+    "the first duplicated tab should be placed next to tab3 and have URL of tab1"
+  );
+  is(
+    getUrl(gBrowser.visibleTabs[5]),
+    getUrl(tab3),
+    "the second duplicated tab should have URL of tab3 and maintain same order"
+  );
+  is(
+    tab4,
+    gBrowser.visibleTabs[6],
+    "tab4 should now be the still be the seventh tab"
+  );
+
+  let tabsToClose = gBrowser.visibleTabs.filter(t => t != originalTab);
+  for (let tab of tabsToClose) {
+    BrowserTestUtils.removeTab(tab);
+  }
+});