def setUp(self):
self.alphabet = TestAlphabet()
genome_1 = MutableSeq("11111", self.alphabet)
self.org_1 = Organism(genome_1, test_fitness)
genome_2 = MutableSeq("22222", self.alphabet)
self.org_2 = Organism(genome_2, test_fitness)
self.sym_crossover = GeneralPointCrossover(3, 1.0)
self.asym_crossover = GeneralPointCrossover(4, 1.0)
def setUp(self):
self.alphabet = TestAlphabet()
genome_1 = MutableSeq("11111", self.alphabet)
self.org_1 = Organism(genome_1, test_fitness)
genome_2 = MutableSeq("22222", self.alphabet)
self.org_2 = Organism(genome_2, test_fitness)
self.sym_crossover = GeneralPointCrossover(3, 1.0)
self.asym_crossover = GeneralPointCrossover(4, 1.0)
class FourPointTest(unittest.TestCase):
"""Test 'simple' 4-point crossovers.
"""
def setUp(self):
self.alphabet = TestAlphabet()
genome_1 = MutableSeq("11111", self.alphabet)
self.org_1 = Organism(genome_1, test_fitness)
genome_2 = MutableSeq("22222", self.alphabet)
self.org_2 = Organism(genome_2, test_fitness)
self.sym_crossover = GeneralPointCrossover(3, 1.0)
self.asym_crossover = GeneralPointCrossover(4, 1.0)
def test_basic_crossover(self):
"""Test basic 4-point crossover functionality.
"""
start_genome_1 = self.org_1.genome[:]
start_genome_2 = self.org_2.genome[:]
new_org_1, new_org_2 = self.sym_crossover.do_crossover(self.org_1,
self.org_2)
self.assertNotEqual(str(new_org_1.genome), str(start_genome_1),
"Did not perform a crossover when expected.")
self.assertNotEqual(str(new_org_2.genome), str(start_genome_2),
"Did not perform a crossover when expected.")
self.assertNotEqual(str(new_org_1), str(self.org_1),
"Returned an exact copy of the original organism.")
self.assertNotEqual(str(new_org_2), str(self.org_2),
"Returned an exact copy of the original organism.")
def test_prop_sym_crossover(self):
"""Test properties of symmetric 4-point crossover.
"""
new_org_1, new_org_2 = self.sym_crossover.do_crossover(self.org_1,
self.org_2)
self.assertEqual(len(new_org_1.genome), len(new_org_2.genome),
"Strings are of different sizes after symmetric crossover.")
self.assertEqual(str(new_org_1.genome).count("1"),
str(new_org_2.genome).count("2"),
"There should be equal, inverse distributions")
self.assertEqual(str(new_org_1.genome).count("2"),
str(new_org_2.genome).count("1"),
"There should be equal, inverse distributions")
def test_basic_asym_crossover(self):
"""Test basic asymmetric 2-point crossover functionality.
"""
start_genome_1 = self.org_1.genome[:]
start_genome_2 = self.org_2.genome[:]
new_org_1, new_org_2 = self.asym_crossover.do_crossover(self.org_1,
self.org_2)
self.assertNotEqual(str(new_org_1.genome), str(start_genome_1),
"Did not perform a crossover when expected.")
self.assertNotEqual(str(new_org_2.genome), str(start_genome_2),
"Did not perform a crossover when expected.")
self.assertNotEqual(str(new_org_1), str(self.org_1),
"Returned an exact copy of the original organism.")
self.assertNotEqual(str(new_org_2), str(self.org_2),
"Returned an exact copy of the original organism.")
class FourPointTest(unittest.TestCase):
"""Test 'simple' 4-point crossovers.
"""
def setUp(self):
self.alphabet = TestAlphabet()
genome_1 = MutableSeq("11111", self.alphabet)
self.org_1 = Organism(genome_1, test_fitness)
genome_2 = MutableSeq("22222", self.alphabet)
self.org_2 = Organism(genome_2, test_fitness)
self.sym_crossover = GeneralPointCrossover(3, 1.0)
self.asym_crossover = GeneralPointCrossover(4, 1.0)
def test_basic_crossover(self):
"""Test basic 4-point crossover functionality.
"""
start_genome_1 = self.org_1.genome[:]
start_genome_2 = self.org_2.genome[:]
new_org_1, new_org_2 = self.sym_crossover.do_crossover(
self.org_1, self.org_2)
self.assertNotEqual(str(new_org_1.genome), str(start_genome_1),
"Did not perform a crossover when expected.")
self.assertNotEqual(str(new_org_2.genome), str(start_genome_2),
"Did not perform a crossover when expected.")
self.assertNotEqual(
str(new_org_1), str(self.org_1),
"Returned an exact copy of the original organism.")
self.assertNotEqual(
str(new_org_2), str(self.org_2),
"Returned an exact copy of the original organism.")
def test_prop_sym_crossover(self):
"""Test properties of symmetric 4-point crossover.
"""
new_org_1, new_org_2 = self.sym_crossover.do_crossover(
self.org_1, self.org_2)
self.assertEqual(
len(new_org_1.genome), len(new_org_2.genome),
"Strings are of different sizes after symmetric crossover.")
self.assertEqual(
str(new_org_1.genome).count("1"),
str(new_org_2.genome).count("2"),
"There should be equal, inverse distributions")
self.assertEqual(
str(new_org_1.genome).count("2"),
str(new_org_2.genome).count("1"),
"There should be equal, inverse distributions")
def test_basic_asym_crossover(self):
"""Test basic asymmetric 2-point crossover functionality.
"""
start_genome_1 = self.org_1.genome[:]
start_genome_2 = self.org_2.genome[:]
new_org_1, new_org_2 = self.asym_crossover.do_crossover(
self.org_1, self.org_2)
self.assertNotEqual(str(new_org_1.genome), str(start_genome_1),
"Did not perform a crossover when expected.")
self.assertNotEqual(str(new_org_2.genome), str(start_genome_2),
"Did not perform a crossover when expected.")
self.assertNotEqual(
str(new_org_1), str(self.org_1),
"Returned an exact copy of the original organism.")
self.assertNotEqual(
str(new_org_2), str(self.org_2),
"Returned an exact copy of the original organism.")
