Separate file for SloLogutreq.#name_id_format test

Use a separate XML file for SloLogoutrequest#name_id_format tests.
Apparently there are various representations of the file that I modified
that are all supposed to be equivalent.

Author: jeffparsons

test/logout_requests/slo_request.xml

@@ -1,4 +1,4 @@
 <samlp:LogoutRequest Version='2.0' ID='_c0348950-935b-0131-1060-782bcb56fcaa' xmlns:samlp='urn:oasis:names:tc:SAML:2.0:protocol' IssueInstant='2014-03-21T19:20:13'>
   <saml:Issuer xmlns:saml='urn:oasis:names:tc:SAML:2.0:assertion'>https://app.onelogin.com/saml/metadata/SOMEACCOUNT</saml:Issuer>
-  <saml:NameID xmlns:saml='urn:oasis:names:tc:SAML:2.0:assertion' Format='urn:oasis:names:tc:SAML:1.1:nameid-format:emailAddress'>someone@example.org</saml:NameID>
+  <saml:NameID xmlns:saml='urn:oasis:names:tc:SAML:2.0:assertion'>someone@example.org</saml:NameID>
 </samlp:LogoutRequest>

test/logout_requests/slo_request_with_name_id_format.xml

@@ -0,0 +1,4 @@
+<samlp:LogoutRequest Version='2.0' ID='_c0348950-935b-0131-1060-782bcb56fcaa' xmlns:samlp='urn:oasis:names:tc:SAML:2.0:protocol' IssueInstant='2014-03-21T19:20:13'>
+  <saml:Issuer xmlns:saml='urn:oasis:names:tc:SAML:2.0:assertion'>https://app.onelogin.com/saml/metadata/SOMEACCOUNT</saml:Issuer>
+  <saml:NameID xmlns:saml='urn:oasis:names:tc:SAML:2.0:assertion' Format='urn:oasis:names:tc:SAML:1.1:nameid-format:emailAddress'>someone@example.org</saml:NameID>
+</samlp:LogoutRequest>

test/slo_logoutrequest_test.rb

@@ -92,6 +92,8 @@ class RubySamlTest < Minitest::Test
     end
 
     describe "#nameid_format" do
+      let(:logout_request) { OneLogin::RubySaml::SloLogoutrequest.new(logout_request_document_with_name_id_format) }
+
       it "extract the format attribute of the name id element" do
         assert_equal "urn:oasis:names:tc:SAML:1.1:nameid-format:emailAddress", logout_request.nameid_format
       end

test/test_helper.rb

@@ -183,6 +183,15 @@ def logout_request_document
     @logout_request_document
   end
 
+  def logout_request_document_with_name_id_format
+    unless @logout_request_document_with_name_id_format
+      xml = read_logout_request("slo_request_with_name_id_format.xml")
+      deflated = Zlib::Deflate.deflate(xml, 9)[2..-5]
+      @logout_request_document_with_name_id_format = Base64.encode64(deflated)
+    end
+    @logout_request_document_with_name_id_format
+  end
+
   def logout_request_xml_with_session_index
     @logout_request_xml_with_session_index ||= File.read(File.join(File.dirname(__FILE__), 'logout_requests', 'slo_request_with_session_index.xml'))
   end