lithium\storage\cache\adapter\XCache::read PHP Method

    public function read(array $keys)
    {
        if ($this->_config['scope']) {
            $keys = $this->_addScopePrefix($this->_config['scope'], $keys);
        }
        $results = array();
        foreach ($keys as $key) {
            $result = xcache_get($key);
            if ($result === null && !xcache_isset($key)) {
                continue;
            }
            $results[$key] = $result;
        }
        if ($this->_config['scope']) {
            $results = $this->_removeScopePrefix($this->_config['scope'], $results);
        }
        return $results;
    }

 public function testReadWithScope()
 {
     $adapter = new XCache(array('scope' => 'primary'));
     xcache_set('primary:key1', 'test1', 60);
     xcache_set('key1', 'test2', 60);
     $keys = array('key1');
     $expected = array('key1' => 'test1');
     $result = $adapter->read($keys);
     $this->assertEqual($expected, $result);
 }