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<?php declare(strict_types=1);
/*
 * This file is part of PHPUnit.
 *
 * (c) Sebastian Bergmann <sebastian@phpunit.de>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
namespace PHPUnit\Runner\Filter;

use PHPUnit\Framework\TestSuite;
use RecursiveFilterIterator;
use RecursiveIterator;

/**
 * @internal This class is not covered by the backward compatibility promise for PHPUnit
 */
abstract class GroupFilterIterator extends RecursiveFilterIterator
{
    /**
     * @var string[]
     */
    protected $groupTests = [];

public function __construct(RecursiveIterator $iterator, array $groups, TestSuite $suite)
    {
        parent::__construct($iterator);

foreach ($suite->getGroupDetails() as $group => $tests) {
            if (\in_array((string) $group, $groups, true)) {
                $testHashes = \array_map(
                    'spl_object_hash',
                    $tests
                );

$this->groupTests = \array_merge($this->groupTests, $testHashes);
            }
        }
    }

public function accept(): bool
    {
        $test = $this->getInnerIterator()->current();

if ($test instanceof TestSuite) {
            return true;
        }

return $this->doAccept(\spl_object_hash($test));
    }

abstract protected function doAccept(string $hash);
}