https://github.com/symfony/symfony/issues/5851

gistfile1.php

<?php

use Symfony\Component\ClassLoader\UniversalClassLoader;
use Symfony\Component\Finder\Finder;


require_once __DIR__ . '/com.symfony/Symfony/Component/ClassLoader/UniversalClassLoader.php';

$loader = new UniversalClassLoader();

$loader->register();
$loader->useIncludePath(true);
$loader->registerNamespaces(array(
		'Symfony' => __DIR__.'/com.symfony',
));


class Test extends \PHPUnit_Framework_TestCase {
	const TEST_DIR = "/tmp/finder-test";

	public static function provider() {
		$wd = self::TEST_DIR . "/" . \date(\DATE_ATOM);
		$fileName = "$wd/HELLO WHITESPACE!";

		\is_dir(self::TEST_DIR) || \mkdir(self::TEST_DIR, 0700);
		\is_dir($wd) || \mkdir($wd, 0700);
		\is_file($fileName) || \touch($fileName);

		return array(
			array($wd, $fileName),
		);
	}


	/**
	 * @param str $wd
	 * @param str $expectedPathname
	 * @dataProvider provider
	 */
	public function testWithoutSorting ($wd, $expectedPathname) {
		$finder = new Finder();

		$finder
			->in($wd);

		foreach ($finder as $finderFile) {
			$this->assertEquals($expectedPathname, $finderFile->getPathname());
		}
	}


	/**
	 * @param str $wd
	 * @param str $expectedPathname
	 * @dataProvider provider
	 * 
	 * FIXME Wrong usage or bug when sorting files with whitespaces with built in features.
	 */
	public function testWithBuiltInSorting ($wd, $expectedPathname) {
		$finder = new Finder();
	
		$finder
			->in($wd)
			->sortByType();
	
		foreach ($finder as $finderFile) {
			$this->assertEquals($expectedPathname, $finderFile->getPathname());
		}
	}


	/**
	 * @param str $wd
	 * @param str $expectedPathname
	 * @dataProvider provider
	 */
	public function testWithCustomSorting ($wd, $expectedPathname) {
		$finder = new Finder();
	
		$finder
			->in($wd)
			->sort(function (\SplFileInfo $x, \SplFileInfo $y) { return -1; });
	
		foreach ($finder as $finderFile) {
			$this->assertEquals($expectedPathname, $finderFile->getPathname());
		}
	}
}