1 files changed, 90 insertions, 0 deletions
diff --git a/browser/components/urlbar/tests/browser/browser_switchToTab_closed_tab.js b/browser/components/urlbar/tests/browser/browser_switchToTab_closed_tab.js
new file mode 100644
index 0000000000..85b428db61
--- /dev/null
+++ b/browser/components/urlbar/tests/browser/browser_switchToTab_closed_tab.js
@@ -0,0 +1,90 @@
+/* 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/. */
+
+/**
+ * This tests that the "switch to tab" result in the urlbar
+ * will still load the relevant URL if the tab being referred
+ * to does not exist.
+ */
+
+"use strict";
+
+const { UrlbarProviderOpenTabs } = ChromeUtils.importESModule(
+  "resource:///modules/UrlbarProviderOpenTabs.sys.mjs"
+);
+
+async function openPagesCount() {
+  let conn = await PlacesUtils.promiseLargeCacheDBConnection();
+  let res = await conn.executeCached(
+    "SELECT COUNT(*) AS count FROM moz_openpages_temp;"
+  );
+  return res[0].getResultByName("count");
+}
+
+add_task(async function test_switchToTab_tab_closed() {
+  let testURL =
+    "https://example.org/browser/browser/components/urlbar/tests/browser/dummy_page.html";
+
+  // Open a blank tab to start the test from.
+  let testTab = await BrowserTestUtils.openNewForegroundTab(
+    gBrowser,
+    "https://example.org"
+  );
+
+  // Check how many currently open pages are registered
+  let pagesCount = await openPagesCount();
+
+  // Register an open tab that does not exist, this simulates a tab being
+  // opened but not properly unregistered.
+  await UrlbarProviderOpenTabs.registerOpenTab(
+    testURL,
+    gBrowser.contentPrincipal.userContextId,
+    false
+  );
+
+  Assert.equal(
+    await openPagesCount(),
+    pagesCount + 1,
+    "We registered a new open page"
+  );
+
+  let tabOpenPromise = BrowserTestUtils.waitForEvent(
+    gBrowser.tabContainer,
+    "TabOpen",
+    false
+  );
+
+  await UrlbarTestUtils.promiseAutocompleteResultPopup({
+    window,
+    value: testURL,
+  });
+
+  // The first result is the heuristic, the second will be the switch to tab.
+  let element = await UrlbarTestUtils.waitForAutocompleteResultAt(window, 1);
+  EventUtils.synthesizeMouseAtCenter(element, {}, window);
+
+  await tabOpenPromise;
+  await BrowserTestUtils.browserLoaded(
+    gBrowser.selectedBrowser,
+    false,
+    testURL
+  );
+
+  Assert.equal(
+    gBrowser.selectedBrowser.currentURI.spec,
+    testURL,
+    "We opened a new tab with the URL"
+  );
+
+  gBrowser.removeTab(gBrowser.selectedTab);
+
+  Assert.equal(
+    await openPagesCount(),
+    pagesCount,
+    "We unregistered the orphaned open tab"
+  );
+
+  gBrowser.removeTab(testTab);
+  await PlacesUtils.history.clear();
+});