def test_perform_replacements(self):
# Existing fitness list
#[[0.5, 0], [1.5, 1], [2.5, 2], [3.5, 3], [4.5, 4]]
# make some replacement selections
# This should replace the member_no 4
self.ges.fitness_list.set_fitness_type(MIN)
self.ges.set_replacement_selections(
ReplacementDeleteWorst(self.ges.fitness_list, 1))
# make a fitness pool
new_member = deepcopy(self.ges.population[2])
new_member.local_bnf['<IAMNEW>'] = ['yes i am']
orig_member_no = new_member.member_no
fitness_pool = [new_member]
# do the replacements
self.ges._perform_replacements(fitness_pool)
# did replacement take place
self.assertEqual('yes i am',
self.ges.population[4].local_bnf['<IAMNEW>'][0])
# was the local bnf for each replaced member update for new member no
self.assertEqual(4, self.ges.population[4].member_no)
# was the generation number bumped up by one
self.assertEqual(1, self.ges.population[4]._generation)
class TestReplacementDeleteWorst(unittest.TestCase):
def setUp(self):
self.fitness_list = FitnessList(MAX)
self.fitness_list.extend([[1.5, 0], [2.5, 1], [12.0, 2]])
self.repl = ReplacementDeleteWorst(self.fitness_list,
replacement_count=1)
def test_classinit_(self):
self.assertEqual(1, self.repl._replacement_count)
self.assertEqual(MIN, self.repl._selection_type)
def test_set_replacement_count(self):
self.repl.set_replacement_count(2)
self.assertEqual(2, self.repl._replacement_count)
self.repl.set_replacement_count(3)
self.assertEqual(3, self.repl._replacement_count)
self.assertRaises(ValueError, self.repl.set_replacement_count, 4)
def test_select(self):
# attempting to maximize remove worst 3
self.repl.set_replacement_count(3)
values = [i for i in self.repl.select()]
self.assertLessEqual(
self.repl._fitness_list[values[0]][0],
self.repl._fitness_list[values[1]][0],
)
self.assertLessEqual(
self.repl._fitness_list[values[1]][0],
self.repl._fitness_list[values[2]][0],
)
# attempting to minimize remove worst 3
self.fitness_list = FitnessList(MIN)
values = [i for i in self.repl.select()]
self.assertGreaterEqual(
self.repl._fitness_list[values[0]][0],
self.repl._fitness_list[values[1]][0],
)
self.assertGreaterEqual(
self.repl._fitness_list[values[1]][0],
self.repl._fitness_list[values[2]][0],
)
class TestReplacementDeleteWorst(unittest.TestCase):
def setUp(self):
self.fitness_list = FitnessList(MAX)
self.fitness_list.extend([[1.5, 0], [2.5, 1], [12.0, 2]])
self.repl = ReplacementDeleteWorst(self.fitness_list, replacement_count=1)
def test_classinit_(self):
self.assertEqual(1, self.repl._replacement_count)
self.assertEqual(MIN, self.repl._selection_type)
def test_set_replacement_count(self):
self.repl.set_replacement_count(2)
self.assertEqual(2, self.repl._replacement_count)
self.repl.set_replacement_count(3)
self.assertEqual(3, self.repl._replacement_count)
self.assertRaises(ValueError, self.repl.set_replacement_count, 4)
def test_select(self):
# attempting to maximize remove worst 3
self.repl.set_replacement_count(3)
values = [i for i in self.repl.select()]
self.assertLessEqual(self.repl._fitness_list[values[0]][0], self.repl._fitness_list[values[1]][0])
self.assertLessEqual(self.repl._fitness_list[values[1]][0], self.repl._fitness_list[values[2]][0])
# attempting to minimize remove worst 3
self.fitness_list = FitnessList(MIN)
values = [i for i in self.repl.select()]
self.assertGreaterEqual(self.repl._fitness_list[values[0]][0], self.repl._fitness_list[values[1]][0])
self.assertGreaterEqual(self.repl._fitness_list[values[1]][0], self.repl._fitness_list[values[2]][0])
def setUp(self):
self.fitness_list = FitnessList(MAX)
self.fitness_list.extend([[1.5, 0], [2.5, 1], [12.0, 2]])
self.repl = ReplacementDeleteWorst(self.fitness_list,
replacement_count=1)
def setUp(self):
self.fitness_list = FitnessList(MAX)
self.fitness_list.extend([[1.5, 0], [2.5, 1], [12.0, 2]])
self.repl = ReplacementDeleteWorst(self.fitness_list, replacement_count=1)
