Fixed an issue where the tests weren't really doing a realistic game. Now the players exchange points instead of one player scoring all theirs, and the other player scoring all theirs.

Tennis/python/tennis.py

@@ -173,4 +173,6 @@ class TennisGameDefactored3:
                 return "Deuce"
             s = self.p1N if self.p1 > self.p2 else self.p2N
             return "Advantage " + s if ((self.p1-self.p2)*(self.p1-self.p2) == 1) else "Win for " + s
-TennisGame = TennisGameDefactored3        
+
+# NOTE: You must change this to point at the one of the three examples that you're working on!
+TennisGame = TennisGameDefactored1

Tennis/python/tennis_test.py

@@ -1,16 +1,11 @@
 import pytest
 from tennis import TennisGame
 
-from tennis_unittest import test_cases
+from tennis_unittest import test_cases, play_game
 
 class TestTennis:
 
     @pytest.mark.parametrize('p1Points p2Points score p1Name p2Name'.split(), test_cases)
     def test_get_score(self, p1Points, p2Points, score, p1Name, p2Name):
-        game = TennisGame(p1Name, p2Name)
-        for i in range(p1Points):
-            game.won_point(p1Name)
-        for i in range(p2Points):
-            game.won_point(p2Name)
+        game = play_game(p1Points, p2Points, p1Name, p2Name)
         assert score == game.score()
-

Tennis/python/tennis_unittest.py

@@ -1,4 +1,5 @@
 import unittest
+from itertools import izip_longest
 
 from tennis import TennisGame
 
@@ -49,16 +50,21 @@ test_cases = [
     
     ]
 
+def play_game(p1Points, p2Points, p1Name, p2Name):
+    game = TennisGame(p1Name, p2Name)
+    for p1, p2 in izip_longest(range(p1Points), range(p2Points)):
+        if p1 is not None:
+            game.won_point(p1Name)
+        if p2 is not None:
+            game.won_point(p2Name)
+    return game
+
 class TestTennis(unittest.TestCase):
      
     def test_Score(self):
         for testcase in test_cases:
             (p1Points, p2Points, score, p1Name, p2Name) = testcase
-            game = TennisGame(p1Name, p2Name)
-            for i in range(p1Points):
-                game.won_point(p1Name)
-            for i in range(p2Points):
-                game.won_point(p2Name)
+            game = play_game(p1Points, p2Points, p1Name, p2Name)
             self.assertEquals(score, game.score())
  
 if __name__ == "__main__":