def test_copy(self):
g = Genome(2, 2)
# Test to make sure the copy is the same as the original
msg = 'Copy is different from the original!'
g.add_connection(0, 2)
g.add_connection(0, 3)
g.add_node(0)
gc = g.copy()
self.assertEqual(len(g.get_nodes()), len(gc.get_nodes()), msg)
self.assertEqual(len(g.get_connections()), len(gc.get_connections()),
msg)
for i in range(len(g.get_connections())):
self.assertEqual(g.get_connections()[i].weight,
gc.get_connections()[i].weight, msg)
# Test to make sure the copy doesn't change when the original does
msg = 'Copy changes when original changes!'
g.add_node(1)
g.get_connections()[0].weight = 50
self.assertNotEqual(len(g.get_nodes()), len(gc.get_nodes()), msg)
self.assertNotEqual(len(g.get_connections()),
len(gc.get_connections()), msg)
self.assertNotEqual(g.get_connections()[0].weight,
gc.get_connections()[0].weight, msg)
def test_kill_percentage(self):
e = Ecosystem(dc=1.0, ec=1.0, wc=0.4)
# Create genomes
g = Genome(2, 2, ecosystem=e)
g2 = Genome(2, 2, ecosystem=e)
g3 = Genome(2, 2, ecosystem=e)
# Add connections and/or nodes
g.add_connection(0, 2, weight=1.0)
g.add_connection(0, 3, weight=1.0)
g.add_connection(1, 2, weight=1.0)
g2.add_connection(0, 2, weight=0.9)
g2.add_connection(0, 3, weight=1.0)
g2.add_connection(1, 2, weight=1.0)
g2.add_connection(1, 3, weight=1.0)
g3.add_connection(0, 2, weight=0.1)
g3.add_connection(0, 3, weight=1.0)
g3.add_connection(1, 2, weight=1.0)
g3.add_connection(1, 3, weight=1.0)
g3.add_node(0)
g3.add_node(1)
g3.add_node(2)
g3.add_connection(0, 6, weight=1.0)
g3.add_connection(1, 5, weight=1.0)
g.add_node(1)
# Test to make sure the correct amount are killed
msg = 'Incorrect percentage killed!'
for i in range(10):
g_copy = g.copy()
g2_copy = g2.copy()
g3_copy = g3.copy()
g_copy.fitness = random.randrange(0, 200)
g2_copy.fitness = random.randrange(0, 200)
g3_copy.fitness = random.randrange(0, 200)
e.add_genome(g_copy)
e.add_genome(g2_copy)
e.add_genome(g3_copy)
e.kill_percentage(50)
for s in e.species:
self.assertAlmostEqual(len(s), 5, msg=msg, delta=1)
self.assertAlmostEqual(len(e.get_population()), 15, msg=msg, delta=1)
for i in range(5):
g_copy = g.copy()
g2_copy = g2.copy()
g3_copy = g3.copy()
g_copy.fitness = random.randrange(0, 200)
g2_copy.fitness = random.randrange(0, 200)
g3_copy.fitness = random.randrange(0, 200)
e.add_genome(g_copy)
e.add_genome(g2_copy)
e.add_genome(g3_copy)
e.kill_percentage(25)
for s in e.species:
self.assertAlmostEqual(len(s), 8, msg=msg, delta=1)
self.assertAlmostEqual(len(e.get_population()), 24, msg=msg, delta=1)
for i in range(2):
g_copy = g.copy()
g2_copy = g2.copy()
g3_copy = g3.copy()
g_copy.fitness = random.randrange(0, 200)
g2_copy.fitness = random.randrange(0, 200)
g3_copy.fitness = random.randrange(0, 200)
e.add_genome(g_copy)
e.add_genome(g2_copy)
e.add_genome(g3_copy)
e.kill_percentage(75)
for s in e.species:
self.assertAlmostEqual(len(s), 3, msg=msg, delta=1)
self.assertAlmostEqual(len(e.get_population()), 9, msg=msg, delta=1)
e.kill_percentage(12)
for s in e.species:
self.assertAlmostEqual(len(s), 3, msg=msg, delta=1)
self.assertAlmostEqual(len(e.get_population()), 9, msg=msg, delta=1)
# Test with a larger population
e.create_initial_population(100, parent_genome=g)
e.add_genome(g2.copy())
e.add_genome(g3.copy())
e.kill_percentage(90)
self.assertAlmostEqual(len(e.get_population()), 12, msg=msg, delta=3)