spec/ruby/core/encoding/converter/search_convpath_spec.rb


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require_relative '../../../spec_helper'

with_feature :encoding do
  describe "Encoding::Converter.search_convpath" do
    it "returns an Array with a single element if there is a direct converter" do
      cp = Encoding::Converter.search_convpath('ASCII', 'UTF-8')
      cp.should == [[Encoding::US_ASCII, Encoding::UTF_8]]
    end

    it "returns multiple encoding pairs when direct conversion is impossible" do
      cp = Encoding::Converter.search_convpath('ascii','Big5')
      cp.should == [
        [Encoding::US_ASCII, Encoding::UTF_8],
        [Encoding::UTF_8, Encoding::Big5]
      ]
    end

    it "indicates if crlf_newline conversion would occur" do
      cp = Encoding::Converter.search_convpath(
        "ISO-8859-1", "EUC-JP", {crlf_newline: true})
      cp.last.should == "crlf_newline"

      cp = Encoding::Converter.search_convpath(
        "ASCII", "UTF-8", {crlf_newline: false})
      cp.last.should_not == "crlf_newline"
    end

    it "raises an Encoding::ConverterNotFoundError if no conversion path exists" do
#      lambda do
#        Encoding::Converter.search_convpath(
#          Encoding::ASCII_8BIT, Encoding::Emacs_Mule)
#      end.should raise_error(Encoding::ConverterNotFoundError)
      begin
        Encoding::Converter.search_convpath(Encoding::ASCII_8BIT, Encoding::Emacs_Mule)
      rescue => e
        e.class.should == Encoding::ConverterNotFoundError
      end
    end
  end
end