require 'test_helper'

class PosterControllerTest < ActionController::TestCase

  def test_putting_an_image
    @request.env['CONTENT_TYPE'] = "image/bmp"
    #@request.env['RAW_POST_BODY'] = "asdfasdf" # normally load data from a file
    put :put
  end
end


running this with Jruby 1.3RC2 gets me this:
test_putting_an_image(PosterControllerTest):
NoMethodError: undefined method `split' for #<Mime::Type:0x48ce88f6>
    test/functional/poster_controller_test.rb:7:in `test_putting_an_image'

1 tests, 0 assertions, 0 failures, 1 errors

with regular ruby it passes