function run_test() {
  try {
    var cm = Cc["@mozilla.org/cookiemanager;1"].
             getService(Ci.nsICookieManager2);
    do_check_neq(cm, null, "Retrieving the cookie manager failed");

    const time = (new Date("Jan 1, 2030")).getTime() / 1000;
    cm.add("example.com", "/", "C", "V", false, true, false, time, {});
    const now = Math.floor((new Date()).getTime() / 1000);

    var enumerator = cm.enumerator, found = false;
    while (enumerator.hasMoreElements()) {
      var cookie = enumerator.getNext().QueryInterface(Ci.nsICookie2);
      if (cookie.host == "example.com" &&
          cookie.path == "/" &&
          cookie.name == "C") {
        do_check_true("creationTime" in cookie,
          "creationTime attribute is not accessible on the cookie");
        var creationTime = Math.floor(cookie.creationTime / 1000000);
        // allow the times to slip by one second at most,
        // which should be fine under normal circumstances.
        do_check_true(Math.abs(creationTime - now) <= 1,
          "Cookie's creationTime is set incorrectly");
        found = true;
        break;
      }
    }

    do_check_true(found, "Didn't find the cookie we were after");
  } catch (e) {
    do_throw("Unexpected exception: " + e.toString());
  }

  do_test_finished();
}