require 'abstract_unit'

module ActionDispatch
  class UploadedFileTest < ActiveSupport::TestCase
    def test_constructor_with_argument_error
      assert_raises(ArgumentError) do
        Http::UploadedFile.new({})
      end
    end

    def test_original_filename
      uf = Http::UploadedFile.new(:filename => 'foo', :tempfile => Object.new)
      assert_equal 'foo', uf.original_filename
    end

    def test_filename_should_be_in_utf_8
      uf = Http::UploadedFile.new(:filename => 'foo', :tempfile => Object.new)
      assert_equal "UTF-8", uf.original_filename.encoding.to_s
    end

    def test_filename_should_always_be_in_utf_8
      uf = Http::UploadedFile.new(:filename => 'foo'.encode(Encoding::SHIFT_JIS),
                                  :tempfile => Object.new)
      assert_equal "UTF-8", uf.original_filename.encoding.to_s
    end

    def test_content_type
      uf = Http::UploadedFile.new(:type => 'foo', :tempfile => Object.new)
      assert_equal 'foo', uf.content_type
    end

    def test_headers
      uf = Http::UploadedFile.new(:head => 'foo', :tempfile => Object.new)
      assert_equal 'foo', uf.headers
    end

    def test_tempfile
      uf = Http::UploadedFile.new(:tempfile => 'foo')
      assert_equal 'foo', uf.tempfile
    end

    def test_to_io_returns_the_tempfile
      tf = Object.new
      uf = Http::UploadedFile.new(:tempfile => tf)
      assert_equal tf, uf.to_io
    end

    def test_delegates_path_to_tempfile
      tf = Class.new { def path; 'thunderhorse' end }
      uf = Http::UploadedFile.new(:tempfile => tf.new)
      assert_equal 'thunderhorse', uf.path
    end

    def test_delegates_open_to_tempfile
      tf = Class.new { def open; 'thunderhorse' end }
      uf = Http::UploadedFile.new(:tempfile => tf.new)
      assert_equal 'thunderhorse', uf.open
    end

    def test_delegates_close_to_tempfile
      tf = Class.new { def close(unlink_now=false); 'thunderhorse' end }
      uf = Http::UploadedFile.new(:tempfile => tf.new)
      assert_equal 'thunderhorse', uf.close
    end

    def test_close_accepts_parameter
      tf = Class.new { def close(unlink_now=false); "thunderhorse: #{unlink_now}" end }
      uf = Http::UploadedFile.new(:tempfile => tf.new)
      assert_equal 'thunderhorse: true', uf.close(true)
    end

    def test_delegates_read_to_tempfile
      tf = Class.new { def read(length=nil, buffer=nil); 'thunderhorse' end }
      uf = Http::UploadedFile.new(:tempfile => tf.new)
      assert_equal 'thunderhorse', uf.read
    end

    def test_delegates_read_to_tempfile_with_params
      tf = Class.new { def read(length=nil, buffer=nil); [length, buffer] end }
      uf = Http::UploadedFile.new(:tempfile => tf.new)
      assert_equal %w{ thunder horse }, uf.read(*%w{ thunder horse })
    end

    def test_delegate_respects_respond_to?
      tf = Class.new { def read; yield end; private :read }
      uf = Http::UploadedFile.new(:tempfile => tf.new)
      assert_raises(NoMethodError) do
        uf.read
      end
    end

    def test_delegate_eof_to_tempfile
      tf = Class.new { def eof?; true end; }
      uf = Http::UploadedFile.new(:tempfile => tf.new)
      assert uf.eof?
    end

    def test_respond_to?
      tf = Class.new { def read; yield end }
      uf = Http::UploadedFile.new(:tempfile => tf.new)
      assert uf.respond_to?(:headers), 'responds to headers'
      assert uf.respond_to?(:read), 'responds to read'
    end
  end
end