1 files changed, 54 insertions, 0 deletions
diff --git a/dom/base/test/browser_user_input_handling_delay_reload_ticks.js b/dom/base/test/browser_user_input_handling_delay_reload_ticks.js
new file mode 100644
index 0000000000..8afc7f16bb
--- /dev/null
+++ b/dom/base/test/browser_user_input_handling_delay_reload_ticks.js
@@ -0,0 +1,54 @@
+/* -*- Mode: JavaScript; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* 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/. */
+
+async function test_user_input_handling_delay_helper(prefs) {
+  await SpecialPowers.pushPrefEnv({
+    set: prefs,
+  });
+
+  const tab = await BrowserTestUtils.openNewForegroundTab(
+    gBrowser,
+    `data:text/html,<body></body>`
+  );
+
+  await BrowserTestUtils.reloadTab(tab);
+
+  // eslint-disable-next-line mozilla/no-arbitrary-setTimeout
+  await new Promise(r => setTimeout(r, 5000));
+
+  const userInputHappend = SpecialPowers.spawn(
+    tab.linkedBrowser,
+    [],
+    async function () {
+      await ContentTaskUtils.waitForEvent(content, "keydown");
+    }
+  ).then(function () {
+    Assert.ok(
+      true,
+      "User input event should be able to work after 5 seconds of an reload"
+    );
+  });
+
+  // In the buggy build, the following tab key doesn't work
+  await BrowserTestUtils.synthesizeKey("KEY_Tab", {}, tab.linkedBrowser);
+  await BrowserTestUtils.synthesizeKey("KEY_Tab", {}, tab.linkedBrowser);
+  await BrowserTestUtils.synthesizeKey("KEY_Tab", {}, tab.linkedBrowser);
+  await BrowserTestUtils.synthesizeKey("KEY_Tab", {}, tab.linkedBrowser);
+
+  await userInputHappend;
+
+  BrowserTestUtils.removeTab(tab);
+}
+
+add_task(async function test_MinTick() {
+  const prefs = [
+    ["dom.input_events.security.minNumTicks", 10],
+    ["dom.input_events.security.minTimeElapsedInMS", 0],
+    ["dom.input_events.security.isUserInputHandlingDelayTest", true],
+  ];
+
+  await test_user_input_handling_delay_helper(prefs);
+});