SAML2\AssertionTest::testMissingNameOnAttribute PHP Метод

    public function testMissingNameOnAttribute()
    {
        $document = new \DOMDocument();
        $document->loadXML(<<<XML
    <saml:Assertion xmlns:saml="urn:oasis:names:tc:SAML:2.0:assertion"
                    Version="2.0"
                    ID="_93af655219464fb403b34436cfb0c5cb1d9a5502"
                    IssueInstant="1970-01-01T01:33:31Z">
      <saml:Issuer>Provider</saml:Issuer>
      <saml:AttributeStatement>
        <saml:Attribute Name="urn:ServiceID">
          <saml:AttributeValue xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="xs:string">1</saml:AttributeValue>
        </saml:Attribute>
        <saml:Attribute>
          <saml:AttributeValue xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="xs:string">1</saml:AttributeValue>
        </saml:Attribute>
      </saml:AttributeStatement>
    </saml:Assertion>
XML
);
        $this->setExpectedException('Exception', "Missing name on <saml:Attribute> element");
        $assertion = new Assertion($document->firstChild);
    }