Bowling kata terminada.

alejandrogomez/bowling.py

@@ -0,0 +1,64 @@
+#!/usr/bin/env python
+# encoding: utf-8
+
+import unittest
+
+
+class Bowling:
+    def __init__(self):
+        self._score = 0
+
+    def score(self, rolls):
+        strike = lambda x: x is 'X'
+        spare = lambda x: x is '/'
+        miss = lambda x: x is '-'
+
+        def get_score(throw):
+            throw_ = rolls[throw]
+            if strike(throw_): 
+                return 10
+            elif spare(throw_): 
+                return 10 - get_score(throw - 1) 
+            elif miss(throw_): 
+                return 0
+            else:
+                return int(throw_)
+
+        self._score = 0
+        throws = range(len(rolls))
+        for throw in throws:
+            throw_ = rolls[throw]
+            self._score += get_score(throw)
+            if strike(throw_):
+                self._score += get_score(throw + 1) + get_score(throw + 2)
+                # last throw
+                if throw == len(rolls) - 3: 
+                    break
+            elif spare(throw_): 
+                self._score += get_score(throw + 1)
+                # last throw
+                if throw == len(rolls) - 2:
+                    break
+        return self._score
+
+
+class BowlingTests(unittest.TestCase):
+    _ROLLS = {
+                "XXXXXXXXXXXX" : 300,
+                "9-9-9-9-9-9-9-9-9-9-" : 90,
+                "5/5/5/5/5/5/5/5/5/5/5" : 150,
+                "X--X--X--X--XX-/" : 80,
+                "--------------------" : 0,
+             }
+
+    def setUp(self):
+        self.sut = Bowling()
+
+    def test_score(self):
+        for roll in self._ROLLS:
+            score = self._ROLLS[roll]
+            self.assertEqual(score, self.sut.score(roll))
+
+
+if __name__ == '__main__':
+    unittest.main()