def testEvaluation(self):
evaluator = Evaluator()
self.assertEquals(0, EvaluateTree.createWith(Minus(Variable("A"), Variable("B")), [0]).alphaBeta(evaluator))
self.assertEquals(0, EvaluateTree.createWith(Minus(Variable("A"), Variable("B")), [0, 1]).alphaBeta(evaluator))
self.assertEquals(
1, EvaluateTree.createWith(Minus(Variable("A"), Variable("B")), [0, 1, 2]).alphaBeta(evaluator)
)
self.assertEquals(
1, EvaluateTree.createWith(Minus(Variable("A"), Variable("B")), [0, 1, 2, 3]).alphaBeta(evaluator)
)
def testEvaluateTreeIsAnAlphaBetaTree(self):
self.assertTrue(isinstance(EvaluateTree.createWith(Minus(Variable("A"), Variable("B")), [0, 1]), AlphaBetaTree))
