adding tests for uploaded file

actionpack/test/dispatch/uploaded_file_test.rb

@@ -0,0 +1,25 @@
+require 'abstract_unit'
+
+module ActionDispatch
+  class UploadedFileTest < ActiveSupport::TestCase
+    def test_original_filename
+      uf = Http::UploadedFile.new(:filename => 'foo')
+      assert_equal 'foo', uf.original_filename
+    end
+
+    def test_content_type
+      uf = Http::UploadedFile.new(:type => 'foo')
+      assert_equal 'foo', uf.content_type
+    end
+
+    def test_headers
+      uf = Http::UploadedFile.new(:head => 'foo')
+      assert_equal 'foo', uf.headers
+    end
+
+    def test_tempfile
+      uf = Http::UploadedFile.new(:tempfile => 'foo')
+      assert_equal 'foo', uf.tempfile
+    end
+  end
+end