--- /dev/null
+<?php
+/*
+ * 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.
+ */
+
+/**
+ * @since Class available since Release 4.0.0
+ */
+abstract class PHPUnit_Runner_Filter_GroupFilterIterator extends RecursiveFilterIterator
+{
+ /**
+ * @var array
+ */
+ protected $groupTests = array();
+
+ /**
+ * @param RecursiveIterator $iterator
+ * @param array $groups
+ * @param PHPUnit_Framework_TestSuite $suite
+ */
+ public function __construct(RecursiveIterator $iterator, array $groups, PHPUnit_Framework_TestSuite $suite)
+ {
+ parent::__construct($iterator);
+
+ foreach ($suite->getGroupDetails() as $group => $tests) {
+ if (in_array($group, $groups)) {
+ $testHashes = array_map(
+ function ($test) {
+ return spl_object_hash($test);
+ },
+ $tests
+ );
+
+ $this->groupTests = array_merge($this->groupTests, $testHashes);
+ }
+ }
+ }
+
+ /**
+ * @return bool
+ */
+ public function accept()
+ {
+ $test = $this->getInnerIterator()->current();
+
+ if ($test instanceof PHPUnit_Framework_TestSuite) {
+ return true;
+ }
+
+ return $this->doAccept(spl_object_hash($test));
+ }
+
+ abstract protected function doAccept($hash);
+}