<saml2:Assertion Version="2.0"
  ID="SamlAssertion-2bd4af0efb2d90c0cab251b0e1fed886" IssueInstant="2014-02-04T12:46:58.807Z"
  xmlns:saml2="urn:oasis:names:tc:SAML:2.0:assertion">
  <saml2:Issuer>foo.com</saml2:Issuer>
  <saml2:Subject>
    <saml2:NameID
      Format="urn:oasis:names:tc:SAML:1.1:nameid-format:unspecified"
      NameQualifier="foo.com">fooissuer</saml2:NameID>
  </saml2:Subject>
  <saml2:AttributeStatement>
    <saml2:Attribute Name="someEmptyAttribute"
      NameFormat="urn:oasis:names:tc:SAML:2.0:attrname-format:unspecified">
      <saml2:AttributeValue />
    </saml2:Attribute>
  </saml2:AttributeStatement>
</saml2:Assertion>