Inheritance: extends lithium\core\Object
 /**
  * This adapter is always enabled by default as it does not rely on any external
  * dependencies.
  */
 public function testEnabled()
 {
     $this->assertTrue(Memory::enabled());
 }
 public function write($key, $value, $options = array())
 {
     return isset($options['fail']) ? null : parent::write($key, $value, $options);
 }