def test_init_dqn_preprocessing(self, mock_parameters, mock_replay_memory): self._setup_parameters(mock_parameters.return_value) mock_parameters.return_value.preprocessing = \ 'cntk.contrib.deeprl.agent.shared.preprocessing.AtariPreprocessing' mock_parameters.return_value.preprocessing_args = '()' action_space = spaces.Discrete(2) observation_space = spaces.Box(0, 1, (1,)) sut = QLearning('', observation_space, action_space) # Preprocessor with default arguments. self.assertIsNotNone(sut._preprocessor) self.assertEqual(sut._preprocessor.output_shape(), (4, 84, 84)) # Preprocessor with arguments passed as a tuple. mock_parameters.return_value.preprocessing_args = '(3,)' sut = QLearning('', observation_space, action_space) self.assertEqual(sut._preprocessor.output_shape(), (3, 84, 84)) # Preprocessor with inappropriate arguments. mock_parameters.return_value.preprocessing_args = '(3, 4)' self.assertRaises( TypeError, QLearning, '', observation_space, action_space) # Undefined preprocessor. mock_parameters.return_value.preprocessing = 'undefined' self.assertRaises( ValueError, QLearning, '', observation_space, action_space)
def test_update_q_dqn(self, mock_parameters, mock_replay_memory): self._setup_parameters(mock_parameters.return_value) self._setup_replay_memory(mock_replay_memory.return_value) action_space = spaces.Discrete(2) observation_space = spaces.Box(0, 1, (1,)) sut = QLearning('', observation_space, action_space) sut._q.eval = \ MagicMock(return_value=np.array([[[0.2, 0.1]]], np.float32)) sut._target_q.eval = \ MagicMock(return_value=np.array([[[0.3, 0.4]]], np.float32)) sut._trainer = MagicMock() sut._update_q_periodically() np.testing.assert_array_equal( sut._trainer.train_minibatch.call_args[0][0][sut._input_variables], [np.array([0.1], np.float32)]) # 10 (reward) + 0.9 (gamma) x 0.4 (max q_target) -> update action 0 np.testing.assert_array_equal( sut._trainer.train_minibatch.call_args[0][0][sut._output_variables], [np.array([10.36, 0.1], np.float32)])
def test_update_q_dqn_prioritized_replay(self, mock_parameters, mock_replay_memory): self._setup_parameters(mock_parameters.return_value) mock_parameters.return_value.use_prioritized_replay = True self._setup_prioritized_replay_memory(mock_replay_memory.return_value) action_space = spaces.Discrete(2) observation_space = spaces.Box(0, 1, (1,)) sut = QLearning('', observation_space, action_space) def new_q_value(self): return np.array([[[0.2, 0.1]]], np.float32) sut._q.eval = MagicMock(side_effect=new_q_value) sut._target_q.eval = MagicMock( return_value=np.array([[[0.3, 0.4]]], np.float32)) sut._trainer = MagicMock() sut._update_q_periodically() self.assertEqual(sut._trainer.train_minibatch.call_count, 1) np.testing.assert_array_equal( sut._trainer.train_minibatch.call_args[0][0][sut._input_variables], [ np.array([0.1], np.float32), np.array([0.3], np.float32), np.array([0.1], np.float32) ]) np.testing.assert_array_equal( sut._trainer.train_minibatch.call_args[0][0][sut._output_variables], [ # 10 (reward) + 0.9 (gamma) x 0.4 (max q_target) np.array([10.36, 0.1], np.float32), # 11 (reward) + 0.9 (gamma) x 0.4 (max q_target) np.array([0.2, 11.36], np.float32), np.array([10.36, 0.1], np.float32) ]) np.testing.assert_almost_equal( sut._trainer.train_minibatch.call_args[0][0][sut._weight_variables], [ [0.16666667], [0.66666667], [0.16666667] ]) self.assertAlmostEqual( sut._replay_memory.update_priority.call_args[0][0][3], 105.2676) # (10.16 + 0.1)^2 self.assertAlmostEqual( sut._replay_memory.update_priority.call_args[0][0][4], 129.0496, places=6) # (11.26 + 0.1) ^ 2
def test_update_q(self, mock_parameters, mock_replay_memory): """Test if _update_q_periodically() can finish successfully.""" self._setup_parameters(mock_parameters.return_value) self._setup_replay_memory(mock_replay_memory.return_value) action_space = spaces.Discrete(2) observation_space = spaces.Box(0, 1, (1, )) sut = QLearning('', observation_space, action_space) sut._trainer.train_minibatch = MagicMock() sut._choose_action = MagicMock(side_effect=[ (1, 'GREEDY'), (0, 'GREEDY'), (1, 'RANDOM'), ]) action, debug_info = sut.start(np.array([0.1], np.float32)) self.assertEqual(action, 1) self.assertEqual(debug_info['action_behavior'], 'GREEDY') self.assertEqual(sut.episode_count, 1) self.assertEqual(sut.step_count, 0) self.assertEqual(sut._epsilon, 0.1) self.assertEqual(sut._trainer.parameter_learners[0].learning_rate(), 0.1) self.assertEqual(sut._last_state, np.array([0.1], np.float32)) self.assertEqual(sut._last_action, 1) action, debug_info = sut.step(1, np.array([0.2], np.float32)) self.assertEqual(action, 0) self.assertEqual(debug_info['action_behavior'], 'GREEDY') self.assertEqual(sut.episode_count, 1) self.assertEqual(sut.step_count, 1) self.assertEqual(sut._epsilon, 0.09) # learning rate remains 0.1 as Q is not updated during this time step. self.assertEqual(sut._trainer.parameter_learners[0].learning_rate(), 0.1) self.assertEqual(sut._last_state, np.array([0.2], np.float32)) self.assertEqual(sut._last_action, 0) action, debug_info = sut.step(2, np.array([0.3], np.float32)) self.assertEqual(action, 1) self.assertEqual(debug_info['action_behavior'], 'RANDOM') self.assertEqual(sut.episode_count, 1) self.assertEqual(sut.step_count, 2) self.assertEqual(sut._epsilon, 0.08) self.assertEqual(sut._trainer.parameter_learners[0].learning_rate(), 0.08) self.assertEqual(sut._last_state, np.array([0.3], np.float32)) self.assertEqual(sut._last_action, 1) sut.end(3, np.array([0.4], np.float32)) self.assertEqual(sut.episode_count, 1) self.assertEqual(sut.step_count, 3) self.assertEqual(sut._epsilon, 0.08) # learning rate remains 0.08 as Q is not updated during this time step. self.assertEqual(sut._trainer.parameter_learners[0].learning_rate(), 0.08)
def test_init_dqn_huber_loss(self, mock_parameters, mock_model): self._setup_parameters(mock_parameters.return_value) mock_parameters.return_value.use_error_clipping = True mock_model.return_value = self._setup_test_model() action_space = spaces.Discrete(2) observation_space = spaces.Box(0, 1, (1,)) sut = QLearning('', observation_space, action_space) mock_model.assert_called_with((1,), 2, '[2]', huber_loss)
def test_init_dqn_prioritized_replay(self, mock_parameters, mock_replay_memory): self._setup_parameters(mock_parameters.return_value) mock_parameters.return_value.use_prioritized_replay = True action_space = spaces.Discrete(2) observation_space = spaces.Box(0, 1, (1, )) sut = QLearning('', observation_space, action_space) self.assertIsNotNone(sut._weight_variables) mock_replay_memory.assert_called_with(100, True)
def test_update_q(self, mock_parameters, mock_replay_memory): """Test if _update_q_periodically() can finish successfully.""" self._setup_parameters(mock_parameters.return_value) self._setup_replay_memory(mock_replay_memory.return_value) action_space = spaces.Discrete(2) observation_space = spaces.Box(0, 1, (1,)) sut = QLearning('', observation_space, action_space) sut._trainer.train_minibatch = MagicMock() sut._choose_action = MagicMock(side_effect=[ (1, 'GREEDY'), (0, 'GREEDY'), (1, 'RANDOM'), ]) action, debug_info = sut.start(np.array([0.1], np.float32)) self.assertEqual(action, 1) self.assertEqual(debug_info['action_behavior'], 'GREEDY') self.assertEqual(sut.episode_count, 1) self.assertEqual(sut.step_count, 0) self.assertEqual(sut._epsilon, 0.1) self.assertEqual(sut._trainer.parameter_learners[0].learning_rate(), 0.1) self.assertEqual(sut._last_state, np.array([0.1], np.float32)) self.assertEqual(sut._last_action, 1) action, debug_info = sut.step(1, np.array([0.2], np.float32)) self.assertEqual(action, 0) self.assertEqual(debug_info['action_behavior'], 'GREEDY') self.assertEqual(sut.episode_count, 1) self.assertEqual(sut.step_count, 1) self.assertEqual(sut._epsilon, 0.09) # learning rate remains 0.1 as Q is not updated during this time step. self.assertEqual(sut._trainer.parameter_learners[0].learning_rate(), 0.1) self.assertEqual(sut._last_state, np.array([0.2], np.float32)) self.assertEqual(sut._last_action, 0) action, debug_info = sut.step(2, np.array([0.3], np.float32)) self.assertEqual(action, 1) self.assertEqual(debug_info['action_behavior'], 'RANDOM') self.assertEqual(sut.episode_count, 1) self.assertEqual(sut.step_count, 2) self.assertEqual(sut._epsilon, 0.08) self.assertEqual(sut._trainer.parameter_learners[0].learning_rate(), 0.08) self.assertEqual(sut._last_state, np.array([0.3], np.float32)) self.assertEqual(sut._last_action, 1) sut.end(3, np.array([0.4], np.float32)) self.assertEqual(sut.episode_count, 1) self.assertEqual(sut.step_count, 3) self.assertEqual(sut._epsilon, 0.08) # learning rate remains 0.08 as Q is not updated during this time step. self.assertEqual(sut._trainer.parameter_learners[0].learning_rate(), 0.08)
def test_init_customized_q(self, mock_parameters, mock_model): self._setup_parameters(mock_parameters.return_value) mock_parameters.return_value.q_representation = \ 'cntk.contrib.deeprl.agent.shared.customized_models.conv_dqn' mock_model.return_value = self._setup_test_model() action_space = spaces.Discrete(2) observation_space = spaces.Box(0, 1, (1,)) sut = QLearning('', observation_space, action_space) self.assertEqual(sut._num_actions, 2) self.assertIsNone(sut._num_states) self.assertEqual(sut._shape_of_inputs, (1,)) self.assertFalse(sut._discrete_observation_space) self.assertIsNone(sut._space_discretizer) self.assertIsNone(sut._preprocessor) mock_model.assert_called_with((1,), 2, None)
def test_init_dueling_dqn(self, mock_parameters, mock_model): self._setup_parameters(mock_parameters.return_value) mock_parameters.return_value.q_representation = 'dueling-dqn' mock_parameters.return_value.hidden_layers = '[2, [2], [2]]' mock_model.return_value = self._setup_test_model() action_space = spaces.Discrete(2) observation_space = spaces.Box(0, 1, (1,)) sut = QLearning('', observation_space, action_space) self.assertEqual(sut._num_actions, 2) self.assertIsNone(sut._num_states) self.assertEqual(sut._shape_of_inputs, (1,)) self.assertFalse(sut._discrete_observation_space) self.assertIsNone(sut._space_discretizer) self.assertIsNone(sut._preprocessor) mock_model.assert_called_with((1,), 2, '[2, [2], [2]]', None)
def test_init_dqn(self, mock_parameters, mock_model, mock_replay_memory): self._setup_parameters(mock_parameters.return_value) mock_model.return_value = self._setup_test_model() action_space = spaces.Discrete(2) observation_space = spaces.Box(0, 1, (1, )) sut = QLearning('', observation_space, action_space) self.assertEqual(sut._num_actions, 2) self.assertIsNone(sut._num_states) self.assertEqual(sut._shape_of_inputs, (1, )) self.assertFalse(sut._discrete_observation_space) self.assertIsNone(sut._space_discretizer) self.assertIsNone(sut._preprocessor) self.assertFalse(hasattr(sut, 'weight_variables')) self.assertIsNotNone(sut._trainer) mock_model.assert_called_with((1, ), 2, '[2]', None) mock_replay_memory.assert_called_with(100, False)
def test_replay_start_size(self, mock_parameters): self._setup_parameters(mock_parameters.return_value) # Set exploration rate to 0 mock_parameters.return_value.initial_epsilon = 0 mock_parameters.return_value.epsilon_decay_step_count = 100 mock_parameters.return_value.epsilon_minimum = 0 mock_parameters.return_value.replay_start_size = 3 action_space = spaces.Discrete(2) observation_space = spaces.Box(0, 1, (1,)) sut = QLearning('', observation_space, action_space) sut._trainer = MagicMock() sut._replay_memory = MagicMock() _, debug = sut.start(np.array([0.1], np.float32)) self.assertEqual(sut.step_count, 0) self.assertEqual(sut._trainer.train_minibatch.call_count, 0) self.assertEqual(debug['action_behavior'], 'RANDOM') _, debug = sut.step(0.1, np.array([0.2], np.float32)) self.assertEqual(sut.step_count, 1) self.assertEqual(sut._trainer.train_minibatch.call_count, 0) self.assertEqual(debug['action_behavior'], 'RANDOM') sut.end(0.2, np.array([0.3], np.float32)) self.assertEqual(sut.step_count, 2) self.assertEqual(sut._trainer.train_minibatch.call_count, 0) _, debug = sut.start(np.array([0.4], np.float32)) self.assertEqual(sut.step_count, 2) self.assertEqual(sut._trainer.train_minibatch.call_count, 0) self.assertEqual(debug['action_behavior'], 'RANDOM') a, debug = sut.step(0.3, np.array([0.5], np.float32)) self.assertEqual(sut.step_count, 3) self.assertEqual(sut._trainer.train_minibatch.call_count, 0) self.assertEqual(debug['action_behavior'], 'GREEDY') a, debug = sut.start(np.array([0.6], np.float32)) self.assertEqual(sut.step_count, 3) self.assertEqual(sut._trainer.train_minibatch.call_count, 0) self.assertEqual(debug['action_behavior'], 'GREEDY') a, debug = sut.step(0.4, np.array([0.7], np.float32)) self.assertEqual(sut.step_count, 4) self.assertEqual(sut._trainer.train_minibatch.call_count, 1) self.assertEqual(debug['action_behavior'], 'GREEDY')
def test_populate_replay_memory(self, mock_parameters): self._setup_parameters(mock_parameters.return_value) mock_parameters.return_value.preprocessing = \ 'cntk.contrib.deeprl.agent.shared.preprocessing.SlidingWindow' mock_parameters.return_value.preprocessing_args = '(2, )' action_space = spaces.Discrete(2) observation_space = spaces.Box(0, 1, (1,)) sut = QLearning('', observation_space, action_space) sut._compute_priority = Mock(side_effect=[1, 2, 3]) sut._choose_action = Mock( side_effect=[(0, ''), (0, ''), (1, ''), (1, '')]) sut._replay_memory = MagicMock() sut._update_q_periodically = MagicMock() sut.start(np.array([0.1], np.float32)) sut.step(0.1, np.array([0.2], np.float32)) sut.step(0.2, np.array([0.3], np.float32)) sut.end(0.3, np.array([0.4], np.float32)) self.assertEqual(sut._replay_memory.store.call_count, 3) call_args = sut._replay_memory.store.call_args_list[0] np.testing.assert_array_equal( call_args[0][0], np.array([[0], [0.1]], np.float32)) self.assertEqual(call_args[0][1], 0) self.assertEqual(call_args[0][2], 0.1) np.testing.assert_array_equal( call_args[0][3], np.array([[0.1], [0.2]], np.float32)) self.assertEqual(call_args[0][4], 1) call_args = sut._replay_memory.store.call_args_list[2] np.testing.assert_array_equal( call_args[0][0], np.array([[0.2], [0.3]], np.float32)) self.assertEqual(call_args[0][1], 1) self.assertEqual(call_args[0][2], 0.3) self.assertIsNone(call_args[0][3]) self.assertEqual(call_args[0][4], 3)