<!DOCTYPE html>
<html>
  <head>
    <script src="/resources/testharness.js"></script>
    <script src="/resources/testharnessreport.js"></script>
    <script src="/resources/testdriver.js"></script>
    <script src="/resources/testdriver-vendor.js"></script>
    <script src="resources/utils.js"></script>
  </head>
  <body></body>
  <script>
    async function attachIframe() {
      const iframe = document.createElement("iframe");
      iframe.src = "about:blank";
      await new Promise((r) => {
        iframe.addEventListener("load", r, { once: true });
        document.body.append(iframe);
      });
      return iframe;
    }

    promise_test(async () => {
      const iframe = await attachIframe();
      const { userActivation } = iframe.contentWindow.navigator;

      assert_false(
        userActivation.isActive,
        "No transient activation before click"
      );
      assert_false(
        userActivation.hasBeenActive,
        "No sticky activation before click"
      );

      // Confirm we have activation
      await test_driver.bless("click", null, iframe.contentWindow);
      assert_true(userActivation.isActive, "is active after click");
      assert_true(userActivation.hasBeenActive, "has been active");

      // Remove the context
      iframe.remove();
      assert_equals(iframe.contentWindow, null, "No more global");
      assert_true(userActivation.isActive, "isActive");
      assert_true(userActivation.hasBeenActive, "hasBeenActive");
    }, "navigator.userActivation retains state even if global is removed");
  </script>
</html>
