1 files changed, 113 insertions, 0 deletions
diff --git a/browser/components/extensions/test/browser/browser_ext_tabs_goBack_goForward.js b/browser/components/extensions/test/browser/browser_ext_tabs_goBack_goForward.js
new file mode 100644
index 0000000000..2ab960699d
--- /dev/null
+++ b/browser/components/extensions/test/browser/browser_ext_tabs_goBack_goForward.js
@@ -0,0 +1,113 @@
+/* -*- Mode: indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* vim: set sts=2 sw=2 et tw=80: */
+"use strict";
+
+add_task(async function test_tabs_goBack_goForward() {
+  await SpecialPowers.pushPrefEnv({
+    set: [["browser.navigation.requireUserInteraction", false]],
+  });
+
+  let extension = ExtensionTestUtils.loadExtension({
+    manifest: {
+      permissions: ["tabs"],
+    },
+
+    files: {
+      "tab1.html": `<head>
+          <meta charset="utf-8">
+          <title>tab1</title>
+        </head>`,
+      "tab2.html": `<head>
+          <meta charset="utf-8">
+          <title>tab2</title>
+        </head>`,
+    },
+
+    async background() {
+      let tabUpdatedCount = 0;
+      let tab = {};
+
+      browser.tabs.onUpdated.addListener(async (tabId, changeInfo, tabInfo) => {
+        if (changeInfo.status !== "complete" || tabId !== tab.id) {
+          return;
+        }
+
+        tabUpdatedCount++;
+        switch (tabUpdatedCount) {
+          case 1:
+            browser.test.assertEq(
+              "tab1",
+              tabInfo.title,
+              "tab1 is found as expected"
+            );
+            browser.tabs.update(tabId, { url: "tab2.html" });
+            break;
+
+          case 2:
+            browser.test.assertEq(
+              "tab2",
+              tabInfo.title,
+              "tab2 is found as expected"
+            );
+            browser.tabs.update(tabId, { url: "tab1.html" });
+            break;
+
+          case 3:
+            browser.test.assertEq(
+              "tab1",
+              tabInfo.title,
+              "tab1 is found as expected"
+            );
+            browser.tabs.goBack();
+            break;
+
+          case 4:
+            browser.test.assertEq(
+              "tab2",
+              tabInfo.title,
+              "tab2 is found after navigating backward with empty parameter"
+            );
+            browser.tabs.goBack(tabId);
+            break;
+
+          case 5:
+            browser.test.assertEq(
+              "tab1",
+              tabInfo.title,
+              "tab1 is found after navigating backward with tabId as parameter"
+            );
+            browser.tabs.goForward();
+            break;
+
+          case 6:
+            browser.test.assertEq(
+              "tab2",
+              tabInfo.title,
+              "tab2 is found after navigating forward with empty parameter"
+            );
+            browser.tabs.goForward(tabId);
+            break;
+
+          case 7:
+            browser.test.assertEq(
+              "tab1",
+              tabInfo.title,
+              "tab1 is found after navigating forward with tabId as parameter"
+            );
+            await browser.tabs.remove(tabId);
+            browser.test.notifyPass("tabs.goBack.goForward");
+            break;
+
+          default:
+            break;
+        }
+      });
+
+      tab = await browser.tabs.create({ url: "tab1.html", active: true });
+    },
+  });
+
+  await extension.startup();
+  await extension.awaitFinish("tabs.goBack.goForward");
+  await extension.unload();
+});