Ruby 1.9 compat: file uploads. References #1689 [Frederick Cheung]

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@8492 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

actionpack/lib/action_controller/request.rb

@@ -473,7 +473,7 @@ module ActionController
             when Array
               value.map { |v| get_typed_value(v) }
             else
-              if value.is_a?(UploadedFile)
+              if value.respond_to? :original_filename
                 # Uploaded file
                 if value.original_filename
                   value
@@ -498,7 +498,7 @@ module ActionController
         def read_multipart(body, boundary, content_length, env)
           params = Hash.new([])
           boundary = "--" + boundary
-          quoted_boundary = Regexp.quote(boundary, "n")
+          quoted_boundary = Regexp.quote(boundary)
           buf = ""
           bufsize = 10 * 1024
           boundary_end=""

actionpack/test/controller/dispatcher_test.rb

@@ -16,7 +16,7 @@ class DispatcherTest < Test::Unit::TestCase
   end
 
   def teardown
-    ENV['REQUEST_METHOD'] = nil
+    ENV.delete 'REQUEST_METHOD'
   end
 
   def test_clears_dependencies_after_dispatch_if_in_loading_mode

actionpack/test/controller/request_test.rb

@@ -731,7 +731,11 @@ class MultipartRequestParameterParsingTest < Test::Unit::TestCase
     assert_equal 'bar', params['foo']
 
     file = params['file']
-    assert_kind_of Tempfile, file
+    if RUBY_VERSION > '1.9'
+      assert_kind_of File, file
+    else
+      assert_kind_of Tempfile, file
+    end
     assert_equal 'file.txt', file.original_filename
     assert_equal "text/plain", file.content_type
     assert ('a' * 20480) == file.read