public void testPlay()   {
        // stack the deck
        ArrayList deck = new ArrayList();
                
        DrawCard redDraw2 = new DrawCard(Card.COLOUR_RED, 2);
        
        // player 0's cards - one playable and 4 unplayable
        deck.add(redDraw2);
        deck.add(new Card(Card.COLOUR_BLUE, 5));
        deck.add(new Card(Card.COLOUR_BLUE, 5));
        deck.add(new Card(Card.COLOUR_BLUE, 5));
        deck.add(new Card(Card.COLOUR_BLUE, 5));
        
        // player 1's cards - it doesn't matter what these are
        deck.add(new Card(Card.COLOUR_BLUE, 5));
        deck.add(new Card(Card.COLOUR_BLUE, 5));
        deck.add(new Card(Card.COLOUR_BLUE, 5));
        deck.add(new Card(Card.COLOUR_BLUE, 5));
        deck.add(new Card(Card.COLOUR_BLUE, 5));

        // the card that becomes the initial pile
        // chosen to allow player 0 to play the red draw 2
        
        deck.add(new Card(Card.COLOUR_RED, 1));
        
        // the draw pile -- add enough cards for player1 to draw 2
        
        deck.add(new Card(Card.COLOUR_GREEN, 2));
        deck.add(new Card(Card.COLOUR_GREEN, 3));
        deck.add(new Card(Card.COLOUR_GREEN, 4));

        // create a game using this deck (unshuffled)
        UnoGame game = new UnoGame(deck, 2);
        game.dealCards();
        
        // get the two players
        Player player0 = game.getPlayers().get(0);
        Player player1 = game.getPlayers().get(1);
        
        // player 0 plays a turn
        game.playTurn();
        
        // check the card played is the red draw 2
        assertEquals(redDraw2, game.getPile().get(0));
        
        // check how many cards each player has
        assertEquals(4, player0.getCards().size());
        assertEquals(7, player1.getCards().size());
        
        // check that we skipped player1's turn
        assertEquals(player0, game.getCurrentPlayer());        
        
        
    }