failing_conneg_test.patch

diff --git a/actionpack/test/dispatch/request_test.rb b/actionpack/test/dispatch/request_test.rb
index b62df9a..e1e7383 100644
--- a/actionpack/test/dispatch/request_test.rb
+++ b/actionpack/test/dispatch/request_test.rb
@@ -436,6 +436,9 @@ class RequestTest < ActiveSupport::TestCase
     request = stub_request
     request.expects(:parameters).at_least_once.returns({ :format => :unknown })
     assert request.formats.empty?
+
+    request = stub_request 'HTTP_ACCEPT' => 'application/xml, application/json'
+    assert_equal [ Mime::XML, Mime::JSON ], request.formats
   end

   test "negotiate_mime" do