public function testNonStringKey()
{
$this->expectException(InvalidArgumentException::class);
Utility::validateKey(new \stdClass());
}
/**
* Removes multiple items from the pool.
*
* @param array $keys
* An array of keys that should be removed from the pool.
*
* @throws InvalidArgumentException
* If any of the keys in $keys are not a legal value a \Psr\Cache\InvalidArgumentException
* MUST be thrown.
*
* @return bool
* True if the items were successfully removed. False if there was an error.
*/
public function deleteItems(array $keys)
{
foreach ($keys as $key) {
Utility::validateKey($key);
}
foreach ($keys as $key) {
$this->_cache->delete($key);
}
// TODO: Spec is somewhat not clear. What to return if one item could not be deleted?
return true;
}