mageekguy\atoum\mock\stream::getProtocol PHP Method

    public static function getProtocol($stream)
    {
        $scheme = null;
        $schemeSeparator = strpos($stream, static::protocolSeparator);
        if ($schemeSeparator !== false) {
            $scheme = substr($stream, 0, $schemeSeparator);
        }
        return $scheme;
    }

 public function testGetProtocol()
 {
     $this->variable(mock\stream::getProtocol(uniqid()))->isNull()->string(mock\stream::getProtocol(($scheme = uniqid()) . '://' . uniqid()))->isEqualTo($scheme);
 }