add Deck.size()

Deck.java

package orz.mikeneck.agilesamurai.card;

import java.util.ArrayList;
import java.util.List;

public class Deck {

    private List<Card> cards = new ArrayList<Card>(52);

    public Deck() {
        // CLUBS
        cards.add(Card.ACE_OF_CLUBS);
        cards.add(Card.TWO_OF_CLUBS);
        cards.add(Card.THREE_OF_CLUBS);
        cards.add(Card.FOUR_OF_CLUBS);
        cards.add(Card.FIVE_OF_CLUBS);
        cards.add(Card.SIX_OF_CLUBS);
        cards.add(Card.SEVEN_OF_CLUBS);
        cards.add(Card.EIGHT_OF_CLUBS);
        cards.add(Card.NINE_OF_CLUBS);
        cards.add(Card.TEN_OF_CLUBS);
        cards.add(Card.JACK_OF_CLUBS);
        cards.add(Card.QUEEN_OF_CLUBS);
        cards.add(Card.KING_OF_CLUBS);

        // DIAMONDS
        cards.add(Card.ACE_OF_DIAMONDS);
        cards.add(Card.TWO_OF_DIAMONDS);
        cards.add(Card.THREE_OF_DIAMONDS);
        cards.add(Card.FOUR_OF_DIAMONDS);
        cards.add(Card.FIVE_OF_DIAMONDS);
        cards.add(Card.SIX_OF_DIAMONDS);
        cards.add(Card.SEVEN_OF_DIAMONDS);
        cards.add(Card.EIGHT_OF_DIAMONDS);
        cards.add(Card.NINE_OF_DIAMONDS);
        cards.add(Card.TEN_OF_DIAMONDS);
        cards.add(Card.JACK_OF_DIAMONDS);
        cards.add(Card.QUEEN_OF_DIAMONDS);
        cards.add(Card.KING_OF_DIAMONDS);

        // SPADES
        cards.add(Card.ACE_OF_SPADES);
        cards.add(Card.TWO_OF_SPADES);
        cards.add(Card.THREE_OF_SPADES);
        cards.add(Card.FOUR_OF_SPADES);
        cards.add(Card.FIVE_OF_SPADES);
        cards.add(Card.SIX_OF_SPADES);
        cards.add(Card.SEVEN_OF_SPADES);
        cards.add(Card.EIGHT_OF_SPADES);
        cards.add(Card.NINE_OF_SPADES);
        cards.add(Card.TEN_OF_SPADES);
        cards.add(Card.JACK_OF_SPADES);
        cards.add(Card.QUEEN_OF_SPADES);
        cards.add(Card.KING_OF_SPADES);

        // HEARTS
        cards.add(Card.ACE_OF_HEARTS);
        cards.add(Card.TWO_OF_HEARTS);
        cards.add(Card.THREE_OF_HEARTS);
        cards.add(Card.FOUR_OF_HEARTS);
        cards.add(Card.FIVE_OF_HEARTS);
        cards.add(Card.SIX_OF_HEARTS);
        cards.add(Card.SEVEN_OF_HEARTS);
        cards.add(Card.EIGHT_OF_HEARTS);
        cards.add(Card.NINE_OF_HEARTS);
        cards.add(Card.TEN_OF_HEARTS);
        cards.add(Card.JACK_OF_HEARTS);
        cards.add(Card.QUEEN_OF_HEARTS);
        cards.add(Card.KING_OF_HEARTS);

    }

    public int size() {
        return cards.size();
    }
}

DeckTest.java

package orz.mikeneck.agilesamurai.card.test;

import org.junit.Test;
import orz.mikeneck.agilesamurai.card.Deck;
import orz.mikeneck.agilesamurai.card.Mark;

import static org.hamcrest.CoreMatchers.is;
import static org.junit.Assert.assertThat;

public class DeckTest {

    @Test
    public void testCardContains52Cards() {
        Deck deck = new Deck();
        assertThat(deck.size(), is(52));
    }
}