def test_should_the_solution_remain_unchanged_if_the_probability_is_zero(
self):
operator = BitFlipMutation(0.0)
solution = BinarySolution(number_of_variables=1,
number_of_objectives=1)
solution.variables[0] = [True, True, False, False, True, False]
mutated_solution = operator.execute(solution)
self.assertEqual([True, True, False, False, True, False],
mutated_solution.variables[0])
def test_should_the_solution_change_all_the_bits_if_the_probability_is_one(
self):
operator = BitFlipMutation(1.0)
solution = BinarySolution(number_of_variables=2,
number_of_objectives=1)
solution.variables[0] = [True, True, False, False, True, False]
solution.variables[1] = [False, True, True, False, False, True]
mutated_solution = operator.execute(solution)
self.assertEqual([False, False, True, True, False, True],
mutated_solution.variables[0])
self.assertEqual([True, False, False, True, True, False],
mutated_solution.variables[1])