Testing PlayingCard's compareTo method: 
2 of Spades < 6 of Spades: PASS
6 of Spades > 2 of Spades: PASS
2 of Spades == 2 of Spades: PASS
6 of Spades < Ace of Spades: PASS
Ace of Spades > 6 of Spades: PASS
Ace of Spades == Ace of Spades: PASS

is??? methods tested below in the following order:
isPair, isTwoPair, isThreeOfAKind, isStraight, isFlush
isFullHouse, isFourOfAKind, isStraightFlush, isRoyalFlush.
Expected values for each hand include:
 1 = must be true
 0 = must be false
-1 = may be true or false depending on implementation

Hand:  2S  3S  6D  KS  AH 
Expected: [0, 0, 0, 0, 0, 0, 0, 0, 0]
Results:  [0, 0, 0, 0, 0, 0, 0, 0, 0]	[PASS]

Hand:  2H  2S  3S  4S  AS 
Expected: [1, 0, 0, 0, 0, 0, 0, 0, 0]
Results:  [1, 0, 0, 0, 0, 0, 0, 0, 0]	[PASS]

Hand:  2H  2S  3S  3S  AS 
Expected: [-1, 1, 0, 0, 0, 0, 0, 0, 0]
Results:  [1, 1, 0, 0, 0, 0, 0, 0, 0]	[PASS]

Hand:  2H  2S  6H  6S  QS 
Expected: [-1, 1, 0, 0, 0, 0, 0, 0, 0]
Results:  [1, 1, 0, 0, 0, 0, 0, 0, 0]	[PASS]

Hand:  3S  6H  6S  6C  QS 
Expected: [-1, 0, 1, 0, 0, 0, 0, 0, 0]
Results:  [1, 0, 1, 0, 0, 0, 0, 0, 0]	[PASS]

Hand:  2H  3S  4S  5S  6H 
Expected: [0, 0, 0, 1, 0, 0, 0, 0, 0]
Results:  [0, 0, 0, 1, 0, 0, 0, 0, 0]	[PASS]

Hand:  2H  3S  4S  5S  AS 
Expected: [0, 0, 0, 1, 0, 0, 0, 0, 0]
Results:  [0, 0, 0, 1, 0, 0, 0, 0, 0]	[PASS]

Hand: 10H  JS  QS  KS  AS 
Expected: [0, 0, 0, 1, 0, 0, 0, 0, 0]
Results:  [0, 0, 0, 1, 0, 0, 0, 0, 0]	[PASS]

Hand:  2S  4S  5S  6S  KS 
Expected: [0, 0, 0, 0, 1, 0, 0, 0, 0]
Results:  [0, 0, 0, 0, 1, 0, 0, 0, 0]	[PASS]

Hand:  2H  2S  6H  6S  6C 
Expected: [-1, -1, -1, 0, 0, 1, 0, 0, 0]
Results:  [1, 1, 1, 0, 0, 1, 0, 0, 0]	[PASS]

Hand:  6H  6S  6C 10H 10S 
Expected: [-1, -1, -1, 0, 0, 1, 0, 0, 0]
Results:  [1, 1, 1, 0, 0, 1, 0, 0, 0]	[PASS]

Hand:  2H  6D  6H  6S  6C 
Expected: [-1, -1, -1, 0, 0, 0, 1, 0, 0]
Results:  [1, 1, 1, 0, 0, 0, 1, 0, 0]	[PASS]

Hand:  6D  6H  6S  6C 10H 
Expected: [-1, -1, -1, 0, 0, 0, 1, 0, 0]
Results:  [1, 1, 1, 0, 0, 0, 1, 0, 0]	[PASS]

Hand:  2S  3S  4S  5S  6S 
Expected: [0, 0, 0, -1, -1, 0, 0, 1, 0]
Results:  [0, 0, 0, 1, 1, 0, 0, 1, 0]	[PASS]

Hand: 10S  JS  QS  KS  AS 
Expected: [0, 0, 0, -1, -1, 0, 0, -1, 1]
Results:  [0, 0, 0, 1, 1, 0, 0, 1, 1]	[PASS]

DONE.