# encoding: UTF-8
require File.expand_path(File.dirname(__FILE__) + '/spec_helper')

module ICU
  describe Util do
    context "#is_utf8" do
      it "recognises some encodings as a special case of UTF-8" do
        expect(Util.is_utf8("Resume".encode("US-ASCII"))).to be_true
        expect(Util.is_utf8("Resume".encode("ASCII-8BIT"))).to be_true
        expect(Util.is_utf8("Resume".encode("BINARY"))).to be_true
      end

      it "recognises UTF-8" do
        expect(Util.is_utf8("Résumé")).to be_true
        expect(Util.is_utf8("δog")).to be_true
      end

      it "should recognize other encodings as not being UTF-8" do
        expect(Util.is_utf8("Résumé".encode("ISO-8859-1"))).to be_false
        expect(Util.is_utf8("€50".encode("Windows-1252"))).to be_false
        expect(Util.is_utf8("ひらがな".encode("Shift_JIS"))).to be_false
        expect(Util.is_utf8("\xa3")).to be_false
      end
    end

    context "#to_utf8" do
      it "converts to UTF-8" do
        expect(Util.to_utf8("Resume")).to eq "Resume"
        expect(Util.to_utf8("Resume".force_encoding("US-ASCII")).encoding.name).to eq "UTF-8"
        expect(Util.to_utf8("Résumé".encode("ISO-8859-1"))).to eq "Résumé"
        expect(Util.to_utf8("Résumé".encode("Windows-1252"))).to eq "Résumé"
        expect(Util.to_utf8("€50".encode("Windows-1252"))).to eq "€50"
        expect(Util.to_utf8("\xa350".force_encoding("ASCII-8BIT"))).to eq "£50"
        expect(Util.to_utf8("\xa350")).to eq "£50"
        expect(Util.to_utf8("ひらがな".encode("Shift_JIS"))).to eq "ひらがな"
      end
    end

    context "#downcase" do
      it "downcases characters in the Latin-1 range" do
        expect(Util.downcase("Eric")).to eq "eric"
        expect(Util.downcase("Éric")).to eq "éric"
        expect(Util.downcase("ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÑÒÓÔÕÖØÙÚÛÜÝÞ")).to eq "àáâãäåæçèéêëìíîïñòóôõöøùúûüýþ"
      end
    end

    context "#upcase" do
      it "upcases characters in the Latin-1 range" do
        expect(Util.upcase("Gearoidin")).to eq "GEAROIDIN"
        expect(Util.upcase("Gearóidín")).to eq "GEARÓIDÍN"
        expect(Util.upcase("àáâãäåæçèéêëìíîïñòóôõöøùúûüýþ")).to eq "ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÑÒÓÔÕÖØÙÚÛÜÝÞ"
      end
    end

    context "#capitalize" do
      it "capitalizes strings that might contain accented characters" do
        expect(Util.capitalize("gearoidin")).to eq "Gearoidin"
        expect(Util.capitalize("GEAROIDIN")).to eq "Gearoidin"
        expect(Util.capitalize("gEAróiDÍn")).to eq "Gearóidín"
        expect(Util.capitalize("ériC")).to eq "Éric"
        expect(Util.capitalize("ÉRIc")).to eq "Éric"
      end
    end
  end
end