def test_no_nested_actions_step(self): connection = mock.MagicMock() connection.send = mock.MagicMock(return_value=text_format.Parse( """state: RUNNING""", dm_env_rpc_pb2.StepResponse())) env = dm_env_adaptor.DmEnvAdaptor(connection, specs=_SAMPLE_NESTED_SPECS, requested_observations=[], nested_tensors=False) timestep = env.step({'foo.bar': 123}) self.assertEqual(dm_env.StepType.FIRST, timestep.step_type) connection.send.assert_called_once_with( text_format.Parse( """actions: { key: 1, value: { int32s: { array: 123 } } }""", dm_env_rpc_pb2.StepRequest()))
def test_nested_observations_step(self): connection = mock.MagicMock() connection.send = mock.MagicMock(return_value=text_format.Parse( """state: RUNNING observations: { key: 1, value: { int32s: { array: 42 } } }""", dm_env_rpc_pb2.StepResponse())) expected = {'foo': {'bar': 42}} env = dm_env_adaptor.DmEnvAdaptor(connection, specs=_SAMPLE_NESTED_SPECS, requested_observations=['foo.bar']) timestep = env.step({}) self.assertEqual(dm_env.StepType.FIRST, timestep.step_type) self.assertSameElements(expected, timestep.observation) connection.send.assert_called_once_with( dm_env_rpc_pb2.StepRequest(requested_observations=[1]))
def Process(self, request_iterator, context): """Processes incoming EnvironmentRequests. For each EnvironmentRequest the internal message is extracted and handled. The response for that message is then placed in a EnvironmentResponse which is returned to the client. An error status will be returned if an unknown message type is received or if the message is invalid for the current world state. Args: request_iterator: Message iterator provided by gRPC. context: Context provided by gRPC. Yields: EnvironmentResponse: Response for each incoming EnvironmentRequest. """ env_factory = CatchGameFactory(_INITIAL_SEED) env = None is_joined = False skip_next_frame = False action_manager = spec_manager.SpecManager(_action_spec()) observation_manager = spec_manager.SpecManager(_observation_spec()) for request in request_iterator: environment_response = dm_env_rpc_pb2.EnvironmentResponse() try: message_type = request.WhichOneof('payload') internal_request = getattr(request, message_type) _check_message_type(env, is_joined, message_type) if message_type == 'create_world': env = env_factory.new_game() skip_next_frame = True response = dm_env_rpc_pb2.CreateWorldResponse( world_name=_WORLD_NAME) elif message_type == 'join_world': if is_joined: raise RuntimeError( f'Tried to join world "{internal_request.world_name}" but ' f'already joined to world "{_WORLD_NAME}"') if internal_request.world_name != _WORLD_NAME: raise RuntimeError( f'Tried to join world "{internal_request.world_name}" but the ' f'only supported world is "{_WORLD_NAME}"') response = dm_env_rpc_pb2.JoinWorldResponse() for uid, action in _action_spec().items(): response.specs.actions[uid].CopyFrom(action) for uid, observation in _observation_spec().items(): response.specs.observations[uid].CopyFrom(observation) is_joined = True elif message_type == 'step': # We need to skip all actions after creating or resetting the # environment. if skip_next_frame: skip_next_frame = False else: unpacked_actions = action_manager.unpack( internal_request.actions) paddle_action = unpacked_actions.get( _ACTION_PADDLE, _DEFAULT_ACTION) env.update(paddle_action) response = dm_env_rpc_pb2.StepResponse() packed_observations = observation_manager.pack({ _OBSERVATION_BOARD: env.draw_board(), _OBSERVATION_REWARD: env.reward() }) for requested_observation in internal_request.requested_observations: response.observations[requested_observation].CopyFrom( packed_observations[requested_observation]) if env.has_terminated(): response.state = dm_env_rpc_pb2.EnvironmentStateType.TERMINATED else: response.state = dm_env_rpc_pb2.EnvironmentStateType.RUNNING if env.has_terminated(): env = env_factory.new_game() skip_next_frame = True elif message_type == 'reset': env = env_factory.new_game() skip_next_frame = True response = dm_env_rpc_pb2.ResetResponse() for uid, action in _action_spec().items(): response.specs.actions[uid].CopyFrom(action) for uid, observation in _observation_spec().items(): response.specs.observations[uid].CopyFrom(observation) elif message_type == 'reset_world': env = env_factory.new_game() skip_next_frame = True response = dm_env_rpc_pb2.ResetWorldResponse() elif message_type == 'leave_world': is_joined = False response = dm_env_rpc_pb2.LeaveWorldResponse() elif message_type == 'destroy_world': if internal_request.world_name != _WORLD_NAME: raise RuntimeError( 'Tried to destroy world "{}" but we only support world "{}"' .format(internal_request.world_name, _WORLD_NAME)) env = None response = dm_env_rpc_pb2.DestroyWorldResponse() else: raise RuntimeError( 'Unhandled message: {}'.format(message_type)) getattr(environment_response, message_type).CopyFrom(response) except Exception as e: # pylint: disable=broad-except environment_response.error.CopyFrom( status_pb2.Status(message=str(e))) yield environment_response
import mock import numpy as np from dm_env_rpc.v1 import dm_env_adaptor from dm_env_rpc.v1 import dm_env_rpc_pb2 from dm_env_rpc.v1 import tensor_utils _SAMPLE_STEP_REQUEST = dm_env_rpc_pb2.StepRequest( requested_observations=[1, 2], actions={ 1: tensor_utils.pack_tensor(4, dtype=dm_env_rpc_pb2.UINT8), 2: tensor_utils.pack_tensor('hello') }) _SAMPLE_STEP_RESPONSE = dm_env_rpc_pb2.StepResponse( state=dm_env_rpc_pb2.EnvironmentStateType.RUNNING, observations={ 1: tensor_utils.pack_tensor(5, dtype=dm_env_rpc_pb2.UINT8), 2: tensor_utils.pack_tensor('goodbye') }) _TERMINATED_STEP_RESPONSE = dm_env_rpc_pb2.StepResponse( state=dm_env_rpc_pb2.EnvironmentStateType.TERMINATED, observations={ 1: tensor_utils.pack_tensor(5, dtype=dm_env_rpc_pb2.UINT8), 2: tensor_utils.pack_tensor('goodbye') }) _SAMPLE_SPEC = dm_env_rpc_pb2.ActionObservationSpecs( actions={ 1: dm_env_rpc_pb2.TensorSpec(dtype=dm_env_rpc_pb2.UINT8, name='foo'), 2: dm_env_rpc_pb2.TensorSpec(dtype=dm_env_rpc_pb2.STRING, name='bar') }, observations={ 1: dm_env_rpc_pb2.TensorSpec(dtype=dm_env_rpc_pb2.UINT8, name='foo'),