/**
* Check if a file exists on the remote.
*
* Returns null if caching isn't available (and unsure), else a boolean value
*
* @param string $key
*
* @return bool|null
*/
protected function tagExists($key)
{
if (!$this->cache_pool) {
return null;
}
$item = $this->cache_pool->getItem('remote.' . $key);
return $item->exists();
}
/**
* Test invalid TTL values throw exceptions
*
* @dataProvider poolProvider
* @param PoolInterface $pool
* @expectedException \InvalidArgumentException
*/
public function testInvalidTtl(PoolInterface $pool)
{
$item = $pool->getItem('test');
$item->set('value', "hiya!");
}
