# File lib/rack/test/uploaded_file.rb, line 23
      def initialize(path, content_type = "text/plain", binary = false)
        raise "#{path} file does not exist" unless ::File.exist?(path)

        @content_type = content_type
        @original_filename = ::File.basename(path)

        @tempfile = Tempfile.new([@original_filename, ::File.extname(path)])
        @tempfile.set_encoding(Encoding::BINARY) if @tempfile.respond_to?(:set_encoding)
        @tempfile.binmode if binary

        ObjectSpace.define_finalizer(self, self.class.finalize(@tempfile))

        FileUtils.copy_file(path, @tempfile.path)
      end