public static function setUpBeforeClass()
{
parent::setUpBeforeClass();
$tmpDir = sys_get_temp_dir();
self::$file1 = $tmpDir . '/test.jpg';
copy(__DIR__ . '/../../../../files/iphone_pic.jpg', self::$file1);
self::$file2 = $tmpDir . '/test.txt';
copy(__DIR__ . '/../../../../files/ISOLatin1.txt', self::$file2);
}
