simple_deck_of_cards.rb

require 'minitest/autorun'

class TestDeck < MiniTest::Unit::TestCase

  def test_that_deck_has_52_cards
    deck = Deck.new
    assert_equal 52, deck.cards.count
  end

  def test_that_deck_is_shuffled
  	deck = Deck.new
  	original_deck = deck.cards.dup
  	deck.shuffle
  	refute_equal original_deck, deck.cards
  end

end

class Deck
	attr_accessor :cards
	def initialize
		@cards = []
		(2..14).each do |x| 
			Suits.new.suits.each { |suit| @cards << Card.new(suit, x)}
		end		
	end

	def shuffle
		@cards.shuffle!
	end

end

class Card
	attr_accessor :suit, :value

	def initialize(suit, value)
		@suit = suit
		@value = value
	end
	
end

class Suits
	attr_accessor :suits

	def initialize
		@suits = ["hearts", "diamonds", "clubs", "spades"]
	end

end