def test_mutate_for_100_percent_chance_for_add_connection_mutation(self):
# probability for each mutation
mutation_coefficients = dict(add_connection=1.0, split_connection=0.0, change_weight=0.0,
new_connection_abs_max_weight=5.0, max_weight_mutation=5.0)
weight = 0.0
genome = Genome([[1, 3, weight, True], [1, 4, weight, True], [2, 3, weight, True]], 2, 2)
genome.mutate(mutation_coefficients)
self.assertEqual([(1, 3), (1, 4), (2, 3), (2, 4)], genome.get_connections_ids())
def test_mutate_for_100_percent_chance_for_weight_mutation(self):
# probability for each mutation
mutation_coefficients = dict(add_connection=0.0, split_connection=0.0, change_weight=1.0,
new_connection_abs_max_weight=5.0, max_weight_mutation=5.0)
weight = 0.0
genome = Genome([[1, 2, weight, True]], 1, 1)
genome.mutate(mutation_coefficients)
# add new connection/node mutation
(source_id, dest_id, new_weight, enable) = genome.get_connections()[0]
self.assertNotAlmostEqual(weight, new_weight)