SAML2\MessageTest::testCorrectSignatureMethodCanBeExtractedFromResponse PHP Метод

    public function testCorrectSignatureMethodCanBeExtractedFromResponse()
    {
        $response = new \DOMDocument();
        $response->load(__DIR__ . '/Response/response.xml');
        $privateKey = CertificatesMock::getPrivateKey();
        $unsignedMessage = Message::fromXML($response->documentElement);
        $unsignedMessage->setSignatureKey($privateKey);
        $unsignedMessage->setCertificates(array(CertificatesMock::PUBLIC_KEY_PEM));
        $signedMessage = Message::fromXML($unsignedMessage->toSignedXML());
        $this->assertEquals($privateKey->getAlgorith(), $signedMessage->getSignatureMethod());
    }