# encoding: utf-8

require 'naturally'

describe Naturally do
  describe '#sort' do
    it 'sorts an array of strings nicely as if they were legal numbers' do
      a = %w[676 676.1 676.11 676.12 676.2 676.3 676.9 676.10]
      b = %w[676 676.1 676.2 676.3 676.9 676.10 676.11 676.12]
      Naturally.sort(a).should == b
    end
    
    it 'sorts a more complex list of strings' do
      a = %w[350 351 352 352.1 352.5 353.1 354 354.3 354.4 354.45 354.5]
      b = %w[350 351 352 352.1 352.5 353.1 354 354.3 354.4 354.5 354.45]
      Naturally.sort(a).should == b
    end

    it 'sorts when numbers have letters in them' do
      a = %w[335 335.1 336a 336 337 337a 337.1 337.15 337.2]
      b = %w[335 335.1 336 336a 337 337.1 337.2 337.15 337a]
      Naturally.sort(a).should == b
    end

    it 'sorts when numbers have unicode letters in them' do
      a = %w[335 335.1 336a 336 337 337я 337.1 337.15 337.2]
      b = %w[335 335.1 336 336a 337 337.1 337.2 337.15 337я]
      Naturally.sort(a).should == b
    end

    it 'sorts when letters have numbers in them' do
      a = %w[PC1, PC3, PC5, PC7, PC9, PC10, PC11, PC12, PC13, PC14, PROF2, PBLI, SBP1, SBP3]
      b = %w[PBLI, PC1, PC3, PC5, PC7, PC9, PC10, PC11, PC12, PC13, PC14, PROF2, SBP1, SBP3]
      Naturally.sort(a).should == b
    end

    it 'sorts when letters have numbers and unicode characters in them' do
      a = %w[АБ4, АБ2, АБ10, АБ12, АБ1, АБ3, АД8, АД5, АЩФ12, АЩФ8, ЫВА1]
      b = %w[АБ1, АБ2, АБ3, АБ4, АБ10, АБ12, АД5, АД8, АЩФ8, АЩФ12, ЫВА1]
      Naturally.sort(a).should == b
    end

    it 'sorts double digits with letters correctly' do
      a = %w[12a 12b 12c 13a 13b 2 3 4 5 10 11 12]
      b = %w[2 3 4 5 10 11 12 12a 12b 12c 13a 13b]
      Naturally.sort(a).should == b
    end

    it 'sorts double digits with unicode letters correctly' do
      a = %w[12а 12б 12в 13а 13б 2 3 4 5 10 11 12]
      b = %w[2 3 4 5 10 11 12 12а 12б 12в 13а 13б]
      Naturally.sort(a).should == b
    end
  end
  
  describe '#sort_naturally_by' do
    it 'sorts by an attribute' do
      UbuntuVersion = Struct.new(:name, :version)
      releases = [
        UbuntuVersion.new('Saucy Salamander', '13.10'),
        UbuntuVersion.new('Raring Ringtail',  '13.04'),
        UbuntuVersion.new('Precise Pangolin', '12.04.4'),
        UbuntuVersion.new('Maverick Meerkat', '10.10'),
        UbuntuVersion.new('Quantal Quetzal',  '12.10'),
        UbuntuVersion.new('Lucid Lynx',       '10.04.4')
      ]
      sorted = Naturally.sort_by(releases, :version)
      expect(sorted.map(&:name)).to eq [
        'Lucid Lynx',
        'Maverick Meerkat',
        'Precise Pangolin',
        'Quantal Quetzal',
        'Raring Ringtail',
        'Saucy Salamander'
      ]
    end

    it 'sorts by an attribute which contains unicode characters' do
      Thing = Struct.new(:number, :name)
      objects = [
        Thing.new('1.1', 'Москва'),
        Thing.new('1.2', 'Киев'),
        Thing.new('1.1.1', 'Париж'),
        Thing.new('1.1.2', 'Будапешт'),
        Thing.new('1.10', 'Брест'),
        Thing.new('2.1', 'Калуга'),
        Thing.new('1.3', 'Васюки')
      ]
      sorted = objects.sort_by{ |o| Naturally.normalize(o.name) }
      sorted.map{|o| o.name}.should == %w[
        Брест
        Будапешт
        Васюки
        Калуга
        Киев
        Москва
        Париж
      ]
    end
  end
end