public function testWriteMulti()
{
$expiry = '+1 minute';
$keys = array('key1' => 'data1', 'key2' => 'data2', 'key3' => 'data3');
$result = $this->Apc->write($keys, $expiry);
$this->assertTrue($result);
$result = apc_fetch(array_keys($keys));
$this->assertEqual($keys, $result);
$result = apc_delete(array_keys($keys));
$this->assertEqual(array(), $result);
}