def test_crossover_same_level_4(self):
individual_1 = Individual("(root S0)", Config.get_instance())
individual_2 = Individual("(root S0)", Config.get_instance())
try:
new_ind_1, new_ind_2, _ = individual_1.crossover(individual_2)
self.assertFalse(True,
"crossover with individual type 4 should fail")
except OperationOverIndividualFail, ex:
self.assertTrue(True)
def test_crossover_same_level_0(self):
individual_1 = Individual("(root (cos 5.046))", Config.get_instance())
individual_2 = Individual("(root (cos 5.046))", Config.get_instance())
new_ind_1, new_ind_2, _ = individual_1.crossover(individual_2)
self._assert_individual(new_ind_1,
complexity=4,
value="(root (cos 5.046))",
formal="cos(5.046)")
self._assert_individual(new_ind_2,
complexity=4,
value="(root (cos 5.046))",
formal="cos(5.046)")
def test_crossover_same_level_2(self):
individual_1 = Individual(
"(root (cos (* (+ (* -1.912 -9.178) (cos S0)) 3.113)))",
Config.get_instance())
individual_2 = Individual(
"(root (cos (* (+ (* -1.912 -9.178) (cos S0)) 3.113)))",
Config.get_instance())
new_ind_1, new_ind_2, _ = individual_1.crossover(individual_2)
self._assert_individual(
new_ind_1,
complexity=8,
value="(root (cos (* (* -1.912 -9.178) 3.113)))",
formal="cos((((-1.912) .* (-9.178)) .* 3.113))")
self._assert_individual(
new_ind_2,
complexity=18,
value=
"(root (cos (* (+ (+ (* -1.912 -9.178) (cos S0)) (cos S0)) 3.113)))",
formal=
"cos((((((-1.912) .* (-9.178)) + cos(S0)) + cos(S0)) .* 3.113))")