function testExpiryFilterByAgeing()
 {
     $cookie = new SimpleCookie("a", "A", "/", "Wed, 25-Dec-02 04:24:20 GMT");
     $jar = new CookieJar();
     $jar->setCookie($cookie);
     $jar->restartSession("Wed, 25-Dec-02 04:24:19 GMT");
     $this->assertIdentical($list = $jar->getValidCookies(false, "/"), array($cookie));
     $jar->agePrematurely(2);
     $jar->restartSession("Wed, 25-Dec-02 04:24:19 GMT");
     $this->assertIdentical($list = $jar->getValidCookies(false, "/"), array());
 }