Implement and test Card and Deck classes in Ruby - ruby

Question

I am having a little trouble getting my code to run and have been at it for at least 4 hours...I can't seem to figure it out. BTW I am a newb at programming.
This is the UML diagram for the card/deck
http://imgur.com/lBJw2z0
class Card
#Cards rank from lowest to highest
VALUE = %w(2 3 4 5 6 7 8 9 10 J Q K A)
SUITS = %w(C D H S)
#(Club Diamond Heart Spade)
def initialize(the_rank, the_suit)
[#rank = the_rank]
[#suit = the_suit]
[#symbols = [nil, nil, '2', '3', '4', '5', '6', '7',
'8', '9', '10', 'J', 'Q', 'K', 'A']
end
def rank
[return #symbols[#rank]]
end
def suit
return #suit
end
def to_s
"#{rank()}#{suit()}"
end
end
#double loop for Deck#initialize
#cards = [ ]
for rank in 2..14
for suit in ['C', 'D', 'H', 'S']
# create a new card with the specified rank
# and suit and append it to the array.
end
end
suits.each do |suit|
(ranks.size).times do |i|
#cards.push(Card.new(ranks[i], suit,(i+1)))
end
end
#Remove a card from the top
def deal
[#cards.pop()](1)
end
#Add card to the bottom of the deck
def add_to_bottom(the_card)
#cards.insert(0, the_card)
end
#Add card to the top of the deck
def add_to_top(the_card)
#cards << the_card
end
#Shuffle the Card objects in the deck
def shuffle!
#cards.shuffle!
end
def count()
#cards.count()
end
def empty?
#cards.length == 0
end
def to_s
string = ""
#cards.each do |card|
string += card.to_s + " "
end
end
def cards
#cards
end
end

Answer 1

I haven't tested this very thoroughly, but it basically implements the UML diagram you linked to:
class Deck
def initialize
#ranks = %w(2 3 4 5 6 7 8 9 10 J Q K A)
#suits = %w(Clubs Diamonds Hearts Spades)
#cards = []
#ranks.each do |rank|
#suits.each do |suit|
#cards << Card.new(rank, suit)
end
end
end
def deal
#cards.shift
end
def add_to_bottom(card)
#cards.unshift(card)
end
def add_to_top(card)
#cards << card
end
def count
#cards.count
end
def empty?
#cards.empty?
end
def shuffle!
#cards.shuffle
end
def to_s
result = ''
#cards.each do |card|
result = result + card.to_s + "\n"
end
return result
end
end
class Card
attr_reader :rank, :suit, :color
def initialize(rank, suit)
#rank = rank
#suit = suit
if #rank == 'Clubs' || #rank == 'Spades'
#color = 'black'
else
#color = 'red'
end
end
def to_s
"Card: #{#color} #{#rank} of #{#suit}"
end
end
# Run it, and try some stuff...
my_deck = Deck.new
puts my_deck.to_s
my_deck.deal
my_deck.count
my_deck.shuffle!
puts my_deck.to_s
my_deck.deal
my_deck.count

Answer 2

Now I am trying to figure how the testing method. I have the first working
d = Deck.new
d.cards.each do |card|
puts "#{card.rank} #{card.suit}"
end
And the second method that needs to test:
tests both the Card and Deck classes using the unit test framework with assert_equal methods. Write unit tests for all methods in the Card class, but you only have to test these methods in the Deck class: new, deal, add_to_bottom, add_to_top, count, empty?