Bluz\Http\CacheControl::expire PHP Method

    public function expire()
    {
        if ($this->getTtl() > 0) {
            $this->setAge($this->getMaxAge());
        }
    }

 /**
  * Test Expire
  */
 public function testExpire()
 {
     $this->cacheControl->expire();
     $this->assertEquals(0, $this->cacheControl->getAge());
 }