@Test
    public void testDetermineHandValueFourOfAKind3() {
        FiveCardPokerHand fourOfAKind2 = new FiveCardPokerHand();
        assertTrue(fourOfAKind2.addCard(new Card(Suit.HEART, Rank.ACE)));        
        assertTrue(fourOfAKind2.addCard(new Card(Suit.HEART, Rank.SIX)));
        assertTrue(fourOfAKind2.addCard(new Card(Suit.SPADE, Rank.SIX)));
        assertTrue(fourOfAKind2.addCard(new Card(Suit.CLUB, Rank.SIX)));
        assertTrue(fourOfAKind2.addCard(new Card(Suit.DIAMOND, Rank.SIX)));  
        
        assertEquals("Hand " + fourOfAKind2 + " isn't recognized as a four of a kind hand", 
                PokerHandType.FOUR_OF_A_KIND, comparator.determineHandType(fourOfAKind2));        
    }