def test_set_trunc_rate(self):
fit = FitnessTruncationRanking(self.fitness_list, .5)
self.assertRaises(ValueError, fit.set_trunc_rate, 5)
self.assertRaises(ValueError, fit.set_trunc_rate, 5.0)
self.assertRaises(ValueError, fit.set_trunc_rate, -5)
self.assertRaises(ValueError, fit.set_trunc_rate, -5.0)
self.assertRaises(ValueError, fit.set_trunc_rate, 1.0)
fit.set_trunc_rate(.4)
self.assertAlmostEqual(.4, fit._trunc_rate)
def test_set_trunc_rate(self):
fit = FitnessTruncationRanking(self.fitness_list, 0.5)
self.assertRaises(ValueError, fit.set_trunc_rate, 5)
self.assertRaises(ValueError, fit.set_trunc_rate, 5.0)
self.assertRaises(ValueError, fit.set_trunc_rate, -5)
self.assertRaises(ValueError, fit.set_trunc_rate, -5.0)
self.assertRaises(ValueError, fit.set_trunc_rate, 1.0)
fit.set_trunc_rate(0.4)
self.assertAlmostEqual(0.4, fit._trunc_rate)
def test_select(self):
fit = FitnessTruncationRanking(self.fitness_list, .5)
count = len([i for i in fit.select()])
self.assertEqual(3, count)
def test_calc_prob(self):
fit = FitnessTruncationRanking(self.fitness_list, .5)
self.assertAlmostEqual(.125, fit._calc_prob(10, 2))
def test_classinit_(self):
fit = FitnessTruncationRanking(self.fitness_list, .5)
self.assertAlmostEqual(.5, fit._trunc_rate)
def test_select(self):
fit = FitnessTruncationRanking(self.fitness_list, 0.5)
count = len([i for i in fit.select()])
self.assertEqual(3, count)
def test_calc_prob(self):
fit = FitnessTruncationRanking(self.fitness_list, 0.5)
self.assertAlmostEqual(0.125, fit._calc_prob(10, 2))
