def _test_get_one_exchange_neighbourhood(self, hp): cs = ConfigurationSpace() num_neighbors = 0 if not isinstance(hp, list): hp = [hp] for hp_ in hp: cs.add_hyperparameter(hp_) if np.isinf(hp_.get_num_neighbors()): num_neighbors += 4 else: num_neighbors += hp_.get_num_neighbors() cs.seed(1) config = cs.get_default_configuration() all_neighbors = [] for i in range(100): neighborhood = get_one_exchange_neighbourhood(config, i) for new_config in neighborhood: self.assertNotEqual(config, new_config) all_neighbors.append(new_config) return all_neighbors
def test_setitem(self): ''' Checks overriding a sampled configuration ''' pcs = ConfigurationSpace() pcs.add_hyperparameter( UniformIntegerHyperparameter('x0', 1, 5, default_value=1)) x1 = pcs.add_hyperparameter( CategoricalHyperparameter('x1', ['ab', 'bc', 'cd', 'de'], default_value='ab')) # Condition x2 = pcs.add_hyperparameter(CategoricalHyperparameter('x2', [1, 2])) pcs.add_condition(EqualsCondition(x2, x1, 'ab')) # Forbidden x3 = pcs.add_hyperparameter(CategoricalHyperparameter('x3', [1, 2])) pcs.add_forbidden_clause(ForbiddenEqualsClause(x3, 2)) conf = pcs.get_default_configuration() # failed because it's a invalid configuration with self.assertRaisesRegex(ValueError, "Illegal value '0' for hyperparameter x0"): conf['x0'] = 0 # failed because the variable didn't exists with self.assertRaisesRegex( KeyError, "Hyperparameter 'x_0' does not exist in this configuration space." ): conf['x_0'] = 1 # failed because forbidden clause is violated with self.assertRaisesRegex( ForbiddenValueError, "Given vector violates forbidden clause Forbidden: x3 == 2"): conf['x3'] = 2 self.assertEqual(conf['x3'], 1) # successful operation 1 x0_old = conf['x0'] if x0_old == 1: conf['x0'] = 2 else: conf['x0'] = 1 x0_new = conf['x0'] self.assertNotEqual(x0_old, x0_new) pcs._check_configuration_rigorous(conf) self.assertEqual(conf['x2'], 1) # successful operation 2 x1_old = conf['x1'] if x1_old == 'ab': conf['x1'] = 'cd' else: conf['x1'] = 'ab' x1_new = conf['x1'] self.assertNotEqual(x1_old, x1_new) pcs._check_configuration_rigorous(conf) self.assertRaises(KeyError, conf.__getitem__, 'x2')