def test_new_population(self):
''' Make sure population can clone a new population. '''
population = GAPopulation(indv_template=self.indv_template, size=10)
population.init()
new_population = population.new()
self.assertEqual(new_population.size, 10)
self.assertListEqual(new_population.individuals, [])
def test_all_fits(self):
population = GAPopulation(indv_template=self.indv_template, size=10)
population.init()
all_fits = population.all_fits(fitness=self.fitness)
self.assertEqual(len(all_fits), 10)
for fit in all_fits:
self.assertTrue(type(fit) is float)
def test_selection(self):
indv = GAIndividual(ranges=[(0, 30)])
p = GAPopulation(indv)
p.init()
selection = TournamentSelection()
father, mother = selection.select(p, fitness=self.fitness)
self.assertTrue(isinstance(father, GAIndividual))
self.assertTrue(isinstance(mother, GAIndividual))
def test_selection(self):
indv = GAIndividual(ranges=[(0, 30)])
p = GAPopulation(indv)
p.init()
selection = LinearRankingSelection()
father, mother = selection.select(p, fitness=self.fitness)
self.assertTrue(isinstance(father, GAIndividual))
self.assertTrue(isinstance(mother, GAIndividual))
self.assertNotEqual(father.chromsome, mother.chromsome)
def test_initialization(self):
''' Make sure a population can be initialized correctly. '''
population = GAPopulation(indv_template=self.indv_template, size=10)
self.assertListEqual(population.individuals, [])
population.init()
self.assertEqual(len(population.individuals), 10)
# Check individual.
self.assertTrue(isinstance(population[0], GAIndividual))