def test_swap_half_genes(self):
Random.begin_test()
Random.set_test_value_for("random_int_between_a_and_b", 2)
parent = default_dominating_individual()
child = default_other_dominating_individual()
child.swap_half_genes(parent)
values = [child.problem.get_value(i) for i in range(child.problem.num_variables())]
self.assertEqual(values, [1, 3, 1])
Random.end_test()
def test_get_parents(self):
Random.begin_test()
individuals = default_individuals()
tournament_pool = get_tournament_pool(individuals)
Random.set_test_value_for("random_choice", tournament_pool[0])
Random.set_test_value_for("random_choice", tournament_pool[-1])
mum, dad = get_parents(individuals, False)
self.assertEqual(mum, tournament_pool[-1])
self.assertEqual(dad, tournament_pool[0])
Random.end_test()
def test_emo_phase(self):
Random.begin_test()
Constants.NSGA2_NUM_GENES_MUTATING = 1
Random.set_test_value_for("random_int_between_a_and_b", 2)
Random.set_test_value_for("random_choice", 3)
child = default_dominating_individual()
child.emo_phase()
self.assertEqual(child.problem.get_value(0), 1)
self.assertEqual(child.problem.get_value(1), 2)
self.assertEqual(child.problem.get_value(2), 3)
Random.end_test()
def test_get_children(self):
Random.begin_test()
for _ in range(4):
Random.set_test_value_for("random_int_between_a_and_b", 1)
Random.set_test_value_for("random_int_between_a_and_b", 2)
individuals = default_individuals()
son, daughter = get_children(individuals[0], individuals[1])
son_values = [
son.problem.get_value(i)
for i in range(son.problem.num_variables())
]
daughter_values = [
daughter.problem.get_value(i)
for i in range(daughter.problem.num_variables())
]
self.assertEqual(son_values, [1, 2, 1])
self.assertEqual(daughter_values, [0, 2, 1])
Random.end_test()
def test_random_int_between_a_and_b(self):
true_rando = Random.random_int_between_a_and_b(1, 5)
self.assertLessEqual(true_rando, 5)
self.assertLessEqual(1, true_rando)
Random.begin_test()
Random.set_test_value_for("random_int_between_a_and_b", 1)
Random.set_test_value_for("random_int_between_a_and_b", 2)
Random.set_test_value_for("random_int_between_a_and_b", 3)
self.assertEqual(Random.random_int_between_a_and_b(1, 5), 3)
self.assertEqual(Random.random_int_between_a_and_b(1, 5), 2)
self.assertEqual(Random.random_int_between_a_and_b(1, 5), 1)
Random.end_test()
def test_random_float_between_a_and_b(self):
true_rando = Random.random_float_between_a_and_b(2.4142, 3.1416)
self.assertLessEqual(true_rando, 3.1416)
self.assertLessEqual(2.4142, true_rando)
Random.begin_test()
Random.set_test_value_for("random_float_between_0_and_1", 2.5)
Random.set_test_value_for("random_float_between_0_and_1", 2.9)
Random.set_test_value_for("random_float_between_0_and_1", 3.1)
self.assertEqual(Random.random_float_between_0_and_1(), 3.1)
self.assertEqual(Random.random_float_between_0_and_1(), 2.9)
self.assertEqual(Random.random_float_between_0_and_1(), 2.5)
Random.end_test()
def test_random_float_between_0_and_1(self):
true_rando = Random.random_float_between_0_and_1()
self.assertLessEqual(true_rando, 1.0)
self.assertLessEqual(0.0, true_rando)
Random.begin_test()
Random.set_test_value_for("random_float_between_0_and_1", 0.1)
Random.set_test_value_for("random_float_between_0_and_1", 0.2)
Random.set_test_value_for("random_float_between_0_and_1", 0.3)
self.assertEqual(Random.random_float_between_0_and_1(), 0.3)
self.assertEqual(Random.random_float_between_0_and_1(), 0.2)
self.assertEqual(Random.random_float_between_0_and_1(), 0.1)
Random.end_test()
def test_random_choice(self):
true_rando = Random.random_choice([0, 1, 2, 3, 4, 5])
self.assertIn(true_rando, [0, 1, 2, 3, 4, 5])
Random.begin_test()
Random.set_test_value_for("random_choice", 1)
Random.set_test_value_for("random_choice", 2)
Random.set_test_value_for("random_choice", 3)
self.assertEqual(Random.random_choice([0, 1, 2, 3, 4, 5]), 3)
self.assertEqual(Random.random_choice([0, 1, 2, 3, 4, 5]), 2)
self.assertEqual(Random.random_choice([0, 1, 2, 3, 4, 5]), 1)
Random.end_test()
true_rando = Random.random_choice([0, 4, 5])
self.assertNotIn(true_rando, [1, 2, 3])
def test_set_test_value_for(self):
Random.begin_test()
self.assertEqual(
Random.non_random_values["random_float_between_0_and_1"], [])
self.assertEqual(
Random.non_random_values["random_int_between_a_and_b"], [])
self.assertEqual(
Random.non_random_values["random_float_between_a_and_b"], [])
self.assertEqual(Random.non_random_values["random_choice"], [])
Random.set_test_value_for("random_float_between_0_and_1", 0.123)
Random.set_test_value_for("random_float_between_0_and_1", 0.456)
Random.set_test_value_for("random_int_between_a_and_b", 0)
Random.set_test_value_for("random_int_between_a_and_b", 1)
Random.set_test_value_for("random_int_between_a_and_b", 2)
Random.set_test_value_for("random_float_between_a_and_b", 0.000)
Random.set_test_value_for("random_float_between_a_and_b", 4.123)
Random.set_test_value_for("random_float_between_a_and_b", 5.432)
Random.set_test_value_for("random_choice", 3)
Random.set_test_value_for("random_choice", 5)
Random.set_test_value_for("random_choice", 2)
self.assertEqual(
Random.non_random_values["random_float_between_0_and_1"], [0.123, 0.456])
self.assertEqual(
Random.non_random_values["random_int_between_a_and_b"], [0, 1, 2])
self.assertEqual(Random.non_random_values["random_float_between_a_and_b"], [
0.000, 4.123, 5.432])
self.assertEqual(Random.non_random_values["random_choice"], [3, 5, 2])
Random.end_test()