Pig Latin TDD Style

pig_latin.rb

class PigLatinTranslation
  def initialize(phrase)
  @phrase = phrase
  @vowels = ["a", "e", "i", "o", "u"]
  @translation_array = []
  end

  def translate
    words_array = words
    index = 0
    words_array.each do |word|
      if starts_with_vowel?(word)
        @translation_array << (word + "way")
      else
        while [email protected]?(word[index])
          index += 1
        end
        @translation_array << (word[index..-1] + word[0...index] + "ay")
      end
    end

    p "#{@translation_array.join(" ")}"
  end

  private


  def words
    @phrase.split.map
  end

  def starts_with_vowel?(word)
    @vowels.include?(word[0])
  end

end

pig_spec.rb

require 'rspec'
require_relative 'pig_latin'

describe PigLatinTranslation do
  it " 'happy' → 'appyhay' " do
    pig_translation = PigLatinTranslation.new('happy')
    expect(pig_translation.translate).to eql('appyhay')
  end

  it " 'duck' → 'uckday' " do
    pig_translation = PigLatinTranslation.new('duck')
    expect(pig_translation.translate).to eql('uckday')
  end

  it " 'glove' → 'oveglay' " do
    pig_translation = PigLatinTranslation.new('glove')
    expect(pig_translation.translate).to eql('oveglay')
  end

  it " 'egg' → 'eggway' " do
    pig_translation = PigLatinTranslation.new('egg')
    expect(pig_translation.translate).to eql('eggway')
  end

  it " 'inbox' → 'inboxway' " do
    pig_translation = PigLatinTranslation.new('inbox')
    expect(pig_translation.translate).to eql('inboxway')
  end

  it " 'eight' → 'eightway' " do
    pig_translation = PigLatinTranslation.new('eight')
    expect(pig_translation.translate).to eql('eightway')
  end

end