SAML2\XML\saml\SubjectConfirmationTest::testManySubjectConfirmationDataThrowsException PHP Метод

    public function testManySubjectConfirmationDataThrowsException()
    {
        $samlNamespace = Constants::NS_SAML;
        $document = DOMDocumentFactory::fromString(<<<XML
<saml:SubjectConfirmation xmlns:saml="{$samlNamespace}" Method="SomeMethod">
  <saml:NameID>SomeNameIDValue</saml:NameID>
  <saml:SubjectConfirmationData Recipient="Me" />
  <saml:SubjectConfirmationData Recipient="Someone Else" />
</saml:SubjectConfirmation>
XML
);
        $this->setExpectedException('Exception', 'More than one SubjectConfirmationData child in a SubjectConfirmation element');
        $subjectConfirmation = new SubjectConfirmation($document->firstChild);
    }