public static function setUpBeforeClass()
{
static::$fileSystem = FileSystem::factory('vfs://');
static::$fileSystem->mount();
$testPaths = ['/base/sub/test', '/base/sub/sub/test'];
// Setup some files we test against
foreach ($testPaths as $path) {
mkdir('vfs://' . $path, 0777, true);
touch('vfs://' . $path . DIRECTORY_SEPARATOR . 'TestClass.php');
}
}