diff --git a/no_solid_design/card.py b/no_solid_design/card.py
index 14f73a4..8049851 100644
--- a/no_solid_design/card.py
+++ b/no_solid_design/card.py
@@ -25,6 +25,45 @@ def shuffle_burn(self, n=100):
     def deal(self):
         return self.shoe.pop()
 
+__test__  = {
+    'Card': '''
+    >>> random.seed(1) # Deterministic Sequence
+    >>> deck = Card()
+    >>> c1 = deck.deal()
+    >>> c1
+    (3, '♠')
+    >>> hand = [deck.deal() for _ in range(5)]
+    >>> hand
+    [(10, '♠'), (13, '♠'), (2, '♠'), (5, '♠'), (2, '♣')]
+    
+    >>> hand2 = [(11, '♠'), (1, '♠')]
+    >>> sum(deck.points(c)[0] for c in hand2)
+    11
+    >>> sum(deck.points(c)[0] for c in hand2)
+    21
+    ''',
+
+        'Shoe': '''
+    >>> deck = Shoe(6)
+    >>> random.seed(1) # Deterministic Sequence
+    >>> deck.shuffle_burn(100)
+    >>> hand = [deck.deal() for _ in range(5)]
+    >>> hand
+    [(12, '♣'), (10, '♡'), (7, '♢'), (9, '♢'), (4, '♣')]
+    >>> dealing= True
+    >>> while dealing:
+    ...     try:
+    ...        hand = [deck.deal() for _ in range(5)]
+    ...        eq = any( hand[c1] == hand[c2]
+    ...           for c1 in range(len(hand)) for c2 in range(len(hand)) if c1 != c2)
+    ...        if eq: print(hand)
+    ...     except IndexError:
+    ...        dealing= False
+    ...
+    [(6, '♢'), (5, '♡'), (6, '♢'), (13, '♡'), (9, '♡')]
+    [(3, '♢'), (9, '♠'), (6, '♡'), (2, '♢'), (9, '♠')]
+    ''',
+}
 
 if __name__ == "__main__":
     import doctest