def test_de_run(): def square(x): return np.sum(x**2) def hook(optimizer, space, function): return new_function = function.Function(pointer=square) hyperparams = {'CR': 0.9, 'F': 0.7} new_de = de.DE(hyperparams=hyperparams) search_space = search.SearchSpace(n_agents=10, n_iterations=100, n_variables=2, lower_bound=[0, 0], upper_bound=[10, 10]) history = new_de.run(search_space, new_function, pre_evaluation=hook) assert len(history.agents) > 0 assert len(history.best_agent) > 0 best_fitness = history.best_agent[-1][1] assert best_fitness <= constants.TEST_EPSILON, 'The algorithm de failed to converge.'
def test_de_hyperparams_setter(): new_de = de.DE() try: new_de.CR = 'a' except: new_de.CR = 0.5 try: new_de.CR = -1 except: new_de.CR = 0.5 assert new_de.CR == 0.5 try: new_de.F = 'b' except: new_de.F = 0.5 try: new_de.F = -1 except: new_de.F = 0.5 assert new_de.F == 0.5
def test_de_params_setter(): new_de = de.DE() try: new_de.CR = "a" except: new_de.CR = 0.5 try: new_de.CR = -1 except: new_de.CR = 0.5 assert new_de.CR == 0.5 try: new_de.F = "b" except: new_de.F = 0.5 try: new_de.F = -1 except: new_de.F = 0.5 assert new_de.F == 0.5
def test_de_hyperparams(): hyperparams = {'CR': 0.9, 'F': 0.7} new_de = de.DE(hyperparams=hyperparams) assert new_de.CR == 0.9 assert new_de.F == 0.7
def test_de_params(): params = {'CR': 0.9, 'F': 0.7} new_de = de.DE(params=params) assert new_de.CR == 0.9 assert new_de.F == 0.7
def test_de_params(): params = {"CR": 0.9, "F": 0.7} new_de = de.DE(params=params) assert new_de.CR == 0.9 assert new_de.F == 0.7
def test_de_update(): def square(x): return np.sum(x**2) new_de = de.DE() search_space = search.SearchSpace(n_agents=10, n_variables=2, lower_bound=[0, 0], upper_bound=[10, 10]) new_de.update(search_space, square)
def test_de_mutate_agent(): new_de = de.DE() search_space = search.SearchSpace(n_agents=4, n_variables=2, lower_bound=[0, 0], upper_bound=[10, 10]) agent = new_de._mutate_agent(search_space.agents[0], search_space.agents[1], search_space.agents[2], search_space.agents[3]) assert agent.position[0][0] != 0
def test_de_build(): new_de = de.DE() assert new_de.built == True