C:/xampp/htdocs/moodle/lib/simpletestlib/collector.php

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<?php
class SimpleCollector {

    function _removeTrailingSlash($path) {
        if (substr($path, -1) == DIRECTORY_SEPARATOR) {
            return substr($path, 0, -1);
        } elseif (substr($path, -1) == '/') {
            return substr($path, 0, -1);
        } else {
            return $path;
        }
    }

    function collect(&$test, $path) {
        $path = $this->_removeTrailingSlash($path);
        if ($handle = opendir($path)) {
            while (($entry = readdir($handle)) !== false) {
                if ($this->_isHidden($entry)) {
                    continue;
                }
                $this->_handle($test, $path . DIRECTORY_SEPARATOR . $entry);
            }
            closedir($handle);
        }
    }

    function _handle(&$test, $file) {
        if (is_dir($file)) {
            return;
        }
        $test->addTestFile($file);
    }
    
    function _isHidden($filename) {
        return strncmp($filename, '.', 1) == 0;
    }
}

class SimplePatternCollector extends SimpleCollector {
    var $_pattern;

    function SimplePatternCollector($pattern = '/php$/i') {
        $this->_pattern = $pattern;
    }

    function _handle(&$test, $filename) {
        if (preg_match($this->_pattern, $filename)) {
            parent::_handle($test, $filename);
        }
    }
}
?>