public function testWriteDefaultCacheTime() {
		$Apc = new Apc(array('expiry' => '+5 seconds'));
		$key = 'key';
		$data = 'value';

		$closure = $Apc->write($key, $data);
		$this->assertTrue(is_callable($closure));

		$params = compact('key', 'data');
		$result = $closure($Apc, $params, null);
		$expected = $data;
		$this->assertTrue($result);

		$result = apc_fetch($key);
		$this->assertEqual($expected, $result);

		$result = apc_delete($key);
		$this->assertTrue($result);
	}