def test_reset(self):
P1 = axelrod.LimitedRetaliate()
P1.history = [C, C, C, C, D]
P1.retaliating = True
P1.retaliation_count = 4
P1.reset()
self.assertFalse(P1.retaliating)
self.assertEqual(P1.retaliation_count, 0)
def test_effect_of_strategy(self):
P1 = axelrod.LimitedRetaliate()
P2 = axelrod.Player()
"""If opponent has never defected, co-operate"""
self.responses_test([C] * 4, [C] * 4, [C])
P1.history = [C] * 5
self.assertFalse(P1.retaliating)
"""If opponent has previously defected and won, defect and be retaliating"""
self.responses_test([C, C, C, C, D], [C, C, C, D, C], [D])
P1.history = [C, C, C, C, D, D]
self.assertFalse(P1.retaliating)
"""If opponent has just defected and won, defect and be retaliating"""
self.responses_test([C, C, C, C, C, C], [C, C, C, C, C, D], [D])
P1.history = [C] * 6 + [D]
self.assertFalse(P1.retaliating)
"""If I've hit the limit for retaliation attempts, co-operate"""
P1.history = [C, C, C, C, D]
P2.history = [C, C, C, D, C]
P1.retaliation_count = 20
self.assertEqual(P1.strategy(P2), C)
self.assertFalse(P1.retaliating)
def test_effect_of_strategy(self):
P1 = axelrod.LimitedRetaliate()
P2 = axelrod.Player()
# If opponent has never defected, co-operate
self.responses_test([C] * 4, [C] * 4, [C])
self.assertFalse(P1.retaliating)
# If opponent has previously defected and won,
# defect and be not retaliating
self.responses_test([C, C, C, C, D], [C, C, C, D, C], [D])
self.assertFalse(P1.retaliating)
# Case were retaliation count is less than limit: cooperate, reset
# retaliation count and be not retaliating
P1.history = [C, C, C, D, C]
P2.history = [D, D, D, C, D]
P1.retaliation_count = 1
P1.retaliation_limit = 0
self.assertEqual(P1.strategy(P2), C)
self.assertEqual(P1.retaliation_count, 0)
self.assertFalse(P1.retaliating)
# If opponent has previously defected and won, defect and
# be not retaliating
self.responses_test([C, C, C, C, D], [C, C, C, D, C], [D])
self.assertFalse(P1.retaliating)
# If opponent has just defected and won, defect and be not retaliating
self.responses_test([C, C, C, C, C, C], [C, C, C, C, C, D], [D])
self.assertFalse(P1.retaliating)
# If I've hit the limit for retaliation attempts, co-operate
P1.history = [C, C, C, C, D]
P2.history = [C, C, C, D, C]
P1.retaliation_count = 20
self.assertEqual(P1.strategy(P2), C)
self.assertFalse(P1.retaliating)
def test_effect_of_strategy(self):
"""If opponent has never defected, co-operate"""
P1 = axelrod.LimitedRetaliate()
P2 = axelrod.Player()
P1.history = ['C', 'C', 'C', 'C']
P2.history = ['C', 'C', 'C', 'C']
self.assertEqual(P1.strategy(P2), 'C')
self.assertFalse(P1.retaliating)
"""If opponent has previously defected and won, defect and be retaliating"""
P1.history = ['C', 'C', 'C', 'C', 'D']
P2.history = ['C', 'C', 'C', 'D', 'C']
self.assertEqual(P1.strategy(P2), 'D')
self.assertTrue(P1.retaliating)
"""If opponent has just defected and won, defect and be retaliating"""
P1.history = ['C', 'C', 'C', 'C', 'C', 'C']
P2.history = ['C', 'C', 'C', 'C', 'C', 'D']
self.assertEqual(P1.strategy(P2), 'D')
self.assertTrue(P1.retaliating)
"""If I've hit the limit for retaliation attempts, co-operate"""
P1.history = ['C', 'C', 'C', 'C', 'D']
P2.history = ['C', 'C', 'C', 'D', 'C']
P1.retaliation_count = 20
self.assertEqual(P1.strategy(P2), 'C')
self.assertFalse(P1.retaliating)
def test_strategy(self):
"""Starts by cooperating. """
P1 = axelrod.LimitedRetaliate()
P2 = axelrod.Player()
self.assertEqual(P1.strategy(P2), 'C')