class TestQfDerivedPolicy(TfGraphTestCase):
def setUp(self):
super().setUp()
self.env = TfEnv(DummyDiscreteEnv())
self.qf = SimpleQFunction(self.env.spec)
self.policy = DiscreteQfDerivedPolicy(
env_spec=self.env.spec, qf=self.qf)
self.sess.run(tf.global_variables_initializer())
self.env.reset()
def test_discrete_qf_derived_policy(self):
obs, _, _, _ = self.env.step(1)
action = self.policy.get_action(obs)
assert self.env.action_space.contains(action)
actions = self.policy.get_actions([obs])
for action in actions:
assert self.env.action_space.contains(action)
def test_is_pickleable(self):
with tf.variable_scope('SimpleQFunction/SimpleMLPModel', reuse=True):
return_var = tf.get_variable('return_var')
# assign it to all one
return_var.load(tf.ones_like(return_var).eval())
obs, _, _, _ = self.env.step(1)
action1 = self.policy.get_action(obs)
p = pickle.dumps(self.policy)
with tf.Session(graph=tf.Graph()):
policy_pickled = pickle.loads(p)
action2 = policy_pickled.get_action(obs)
assert action1 == action2
class TestGrayscale(unittest.TestCase):
def setUp(self):
self.env = TfEnv(DummyDiscretePixelEnv(random=False))
self.env_g = TfEnv(Grayscale(DummyDiscretePixelEnv(random=False)))
def tearDown(self):
self.env.close()
self.env_g.close()
def test_gray_scale_invalid_environment_type(self):
with self.assertRaises(ValueError):
self.env.observation_space = Discrete(64)
Grayscale(self.env)
def test_gray_scale_invalid_environment_shape(self):
with self.assertRaises(ValueError):
self.env.observation_space = Box(
low=0, high=255, shape=(4, ), dtype=np.uint8)
Grayscale(self.env)
def test_grayscale_observation_space(self):
assert self.env_g.observation_space.shape == (
self.env.observation_space.shape[:-1])
def test_grayscale_reset(self):
"""
RGB to grayscale conversion using scikit-image.
Weights used for conversion:
Y = 0.2125 R + 0.7154 G + 0.0721 B
Reference:
http://scikit-image.org/docs/dev/api/skimage.color.html#skimage.color.rgb2grey
"""
gray_scale_output = np.round(
np.dot(self.env.reset()[:, :, :3],
[0.2125, 0.7154, 0.0721])).astype(np.uint8)
np.testing.assert_array_almost_equal(gray_scale_output,
self.env_g.reset())
def test_grayscale_step(self):
self.env.reset()
self.env_g.reset()
obs, _, _, _ = self.env.step(1)
obs_g, _, _, _ = self.env_g.step(1)
gray_scale_output = np.round(
np.dot(obs[:, :, :3], [0.2125, 0.7154, 0.0721])).astype(np.uint8)
np.testing.assert_array_almost_equal(gray_scale_output, obs_g)
def test_is_pickleable(self, obs_dim, action_dim, mock_rand):
mock_rand.return_value = 0
env = TfEnv(DummyDiscreteEnv(obs_dim=obs_dim, action_dim=action_dim))
with mock.patch(('garage.tf.policies.'
'categorical_mlp_policy_with_model.MLPModel'),
new=SimpleMLPModel):
policy = CategoricalMLPPolicyWithModel(env_spec=env.spec)
env.reset()
obs, _, _, _ = env.step(1)
expected_prob = np.full(action_dim, 0.5)
p = pickle.dumps(policy)
with tf.Session(graph=tf.Graph()):
policy_pickled = pickle.loads(p)
action, prob = policy_pickled.get_action(obs)
assert env.action_space.contains(action)
assert action == 0
assert np.array_equal(prob['prob'], expected_prob)
prob1 = policy.dist_info([obs.flatten()])
prob2 = policy_pickled.dist_info([obs.flatten()])
assert np.array_equal(prob1['prob'], prob2['prob'])
assert np.array_equal(prob2['prob'][0], expected_prob)
def test_is_pickleable(self, obs_dim, action_dim):
"""Test if ContinuousMLPPolicy is pickleable"""
env = TfEnv(DummyBoxEnv(obs_dim=obs_dim, action_dim=action_dim))
with mock.patch(('garage.tf.policies.'
'continuous_mlp_policy.MLPModel'),
new=SimpleMLPModel):
policy = ContinuousMLPPolicy(env_spec=env.spec)
env.reset()
obs, _, _, _ = env.step(1)
with tf.compat.v1.variable_scope('ContinuousMLPPolicy/MLPModel',
reuse=True):
return_var = tf.compat.v1.get_variable('return_var')
# assign it to all one
return_var.load(tf.ones_like(return_var).eval())
output1 = self.sess.run(
policy.model.outputs,
feed_dict={policy.model.input: [obs.flatten()]})
p = pickle.dumps(policy)
with tf.compat.v1.Session(graph=tf.Graph()) as sess:
policy_pickled = pickle.loads(p)
output2 = sess.run(
policy_pickled.model.outputs,
feed_dict={policy_pickled.model.input: [obs.flatten()]})
assert np.array_equal(output1, output2)
def test_is_pickleable(self, obs_dim, action_dim, mock_rand):
mock_rand.return_value = 0
env = TfEnv(DummyDiscreteEnv(obs_dim=obs_dim, action_dim=action_dim))
with mock.patch(('garage.tf.policies.'
'categorical_mlp_policy_with_model.MLPModel'),
new=SimpleMLPModel):
policy = CategoricalMLPPolicyWithModel(env_spec=env.spec)
env.reset()
obs, _, _, _ = env.step(1)
with tf.variable_scope('CategoricalMLPPolicy/MLPModel', reuse=True):
return_var = tf.get_variable('return_var')
# assign it to all one
return_var.load(tf.ones_like(return_var).eval())
output1 = self.sess.run(
policy.model.outputs,
feed_dict={policy.model.input: [obs.flatten()]})
p = pickle.dumps(policy)
with tf.Session(graph=tf.Graph()) as sess:
policy_pickled = pickle.loads(p)
output2 = sess.run(
policy_pickled.model.outputs,
feed_dict={policy_pickled.model.input: [obs.flatten()]})
assert np.array_equal(output1, output2)
def test_is_pickleable(self, obs_dim, action_dim):
env = TfEnv(DummyDiscreteEnv(obs_dim=obs_dim, action_dim=action_dim))
with mock.patch(('garage.tf.q_functions.'
'discrete_mlp_q_function.MLPModel'),
new=SimpleMLPModel):
qf = DiscreteMLPQFunction(env_spec=env.spec)
env.reset()
obs, _, _, _ = env.step(1)
with tf.variable_scope(
'discrete_mlp_q_function/discrete_mlp_q_function', reuse=True):
return_var = tf.get_variable('return_var')
# assign it to all one
return_var.load(tf.ones_like(return_var).eval())
output1 = self.sess.run(qf.q_vals, feed_dict={qf.input: [obs]})
h_data = pickle.dumps(qf)
with tf.Session(graph=tf.Graph()) as sess:
qf_pickled = pickle.loads(h_data)
input_var = tf.placeholder(tf.float32, shape=(None, ) + obs_dim)
q_vals = qf_pickled.get_qval_sym(input_var, 'another')
output2 = sess.run(q_vals, feed_dict={input_var: [obs]})
assert np.array_equal(output1, output2)
class TestResize(unittest.TestCase):
@overrides
def setUp(self):
self.width = 16
self.height = 16
self.env = TfEnv(DummyDiscrete2DEnv())
self.env_r = TfEnv(
Resize(DummyDiscrete2DEnv(), width=self.width, height=self.height))
def test_resize_invalid_environment_type(self):
with self.assertRaises(ValueError):
self.env.observation_space = Discrete(64)
Resize(self.env, width=self.width, height=self.height)
def test_resize_invalid_environment_shape(self):
with self.assertRaises(ValueError):
self.env.observation_space = Box(low=0,
high=255,
shape=(4, ),
dtype=np.uint8)
Resize(self.env, width=self.width, height=self.height)
def test_resize_output_observation_space(self):
assert self.env_r.observation_space.shape == (self.width, self.height)
def test_resize_output_reset(self):
assert self.env_r.reset().shape == (self.width, self.height)
def test_resize_output_step(self):
self.env_r.reset()
obs_r, _, _, _ = self.env_r.step(1)
assert obs_r.shape == (self.width, self.height)
def test_dist_info(self, obs_dim, embedding_dim):
env = TfEnv(DummyBoxEnv(obs_dim=obs_dim, action_dim=embedding_dim))
with mock.patch(('garage.tf.embeddings.'
'gaussian_mlp_encoder.GaussianMLPModel'),
new=SimpleGaussianMLPModel):
embedding_spec = InOutSpec(input_space=env.spec.observation_space,
output_space=env.spec.action_space)
embedding = GaussianMLPEncoder(embedding_spec)
env.reset()
obs, _, _, _ = env.step(1)
obs_dim = env.spec.observation_space.flat_dim
obs_ph = tf.compat.v1.placeholder(tf.float32, shape=(None, obs_dim))
dist1_sym = embedding.dist_info_sym(obs_ph, name='p1_sym')
# flatten output
expected_mean = [np.full(np.prod(embedding_dim), 0.5)]
expected_log_std = [np.full(np.prod(embedding_dim), np.log(0.5))]
prob0 = embedding.dist_info(obs.flatten())
prob1 = self.sess.run(dist1_sym, feed_dict={obs_ph: [obs.flatten()]})
assert np.array_equal(prob0['mean'].flatten(), expected_mean[0])
assert np.array_equal(prob0['log_std'].flatten(), expected_log_std[0])
assert np.array_equal(prob1['mean'], expected_mean)
assert np.array_equal(prob1['log_std'], expected_log_std)
def test_get_action(self, mock_rand, obs_dim, action_dim, filter_dims,
filter_sizes, strides, padding, hidden_sizes):
mock_rand.return_value = 0
env = TfEnv(DummyDiscreteEnv(obs_dim=obs_dim, action_dim=action_dim))
with mock.patch(('garage.tf.policies.'
'categorical_cnn_policy.MLPModel'),
new=SimpleMLPModel):
with mock.patch(('garage.tf.policies.'
'categorical_cnn_policy.CNNModel'),
new=SimpleCNNModel):
policy = CategoricalCNNPolicy(env_spec=env.spec,
conv_filters=filter_dims,
conv_filter_sizes=filter_sizes,
conv_strides=strides,
conv_pad=padding,
hidden_sizes=hidden_sizes)
env.reset()
obs, _, _, _ = env.step(1)
action, prob = policy.get_action(obs)
expected_prob = np.full(action_dim, 0.5)
assert env.action_space.contains(action)
assert action == 0
assert np.array_equal(prob['prob'], expected_prob)
actions, probs = policy.get_actions([obs, obs, obs])
for action, prob in zip(actions, probs['prob']):
assert env.action_space.contains(action)
assert action == 0
assert np.array_equal(prob, expected_prob)
def test_is_pickleable(self, mock_rand, obs_dim, action_dim):
mock_rand.return_value = 0
env = TfEnv(DummyDiscreteEnv(obs_dim=obs_dim, action_dim=action_dim))
with mock.patch(('garage.tf.policies.'
'categorical_cnn_policy.MLPModel'),
new=SimpleMLPModel):
with mock.patch(('garage.tf.policies.'
'categorical_cnn_policy.CNNModel'),
new=SimpleCNNModel):
policy = CategoricalCNNPolicy(env_spec=env.spec,
conv_filters=(32, ),
conv_filter_sizes=(3, ),
conv_strides=(1, ),
conv_pad='SAME',
hidden_sizes=(4, ))
env.reset()
obs, _, _, _ = env.step(1)
with tf.compat.v1.variable_scope(
'CategoricalCNNPolicy/Sequential/MLPModel', reuse=True):
return_var = tf.compat.v1.get_variable('return_var')
# assign it to all one
return_var.load(tf.ones_like(return_var).eval())
output1 = self.sess.run(policy.model.outputs,
feed_dict={policy.model.input: [obs]})
p = pickle.dumps(policy)
with tf.compat.v1.Session(graph=tf.Graph()) as sess:
policy_pickled = pickle.loads(p)
output2 = sess.run(policy_pickled.model.outputs,
feed_dict={policy_pickled.model.input: [obs]})
assert np.array_equal(output1, output2)
def test_get_qval_max_pooling(self, filter_dims, num_filters, strides,
pool_strides, pool_shapes):
env = TfEnv(DummyDiscretePixelEnv())
obs = env.reset()
with mock.patch(('garage.tf.models.'
'cnn_mlp_merge_model.CNNModelWithMaxPooling'),
new=SimpleCNNModelWithMaxPooling):
with mock.patch(('garage.tf.models.'
'cnn_mlp_merge_model.MLPMergeModel'),
new=SimpleMLPMergeModel):
qf = ContinuousCNNQFunction(env_spec=env.spec,
filter_dims=filter_dims,
num_filters=num_filters,
strides=strides,
max_pooling=True,
pool_strides=pool_strides,
pool_shapes=pool_shapes)
action_dim = env.action_space.shape
obs, _, _, _ = env.step(1)
act = np.full(action_dim, 0.5)
expected_output = np.full((1, ), 0.5)
outputs = qf.get_qval([obs], [act])
assert np.array_equal(outputs[0], expected_output)
outputs = qf.get_qval([obs, obs, obs], [act, act, act])
for output in outputs:
assert np.array_equal(output, expected_output)
def test_dist_info_sym(self, obs_dim, action_dim, filter_dims,
filter_sizes, strides, padding, hidden_sizes):
env = TfEnv(DummyDiscreteEnv(obs_dim=obs_dim, action_dim=action_dim))
with mock.patch(('garage.tf.policies.'
'categorical_cnn_policy.MLPModel'),
new=SimpleMLPModel):
with mock.patch(('garage.tf.policies.'
'categorical_cnn_policy.CNNModel'),
new=SimpleCNNModel):
policy = CategoricalCNNPolicy(env_spec=env.spec,
conv_filters=filter_dims,
conv_filter_sizes=filter_sizes,
conv_strides=strides,
conv_pad=padding,
hidden_sizes=hidden_sizes)
env.reset()
obs, _, _, _ = env.step(1)
expected_prob = np.full(action_dim, 0.5)
obs_dim = env.spec.observation_space.shape
state_input = tf.compat.v1.placeholder(tf.float32,
shape=(None, ) + obs_dim)
dist1 = policy.dist_info_sym(state_input, name='policy2')
prob = self.sess.run(dist1['prob'], feed_dict={state_input: [obs]})
assert np.array_equal(prob[0], expected_prob)
def test_is_pickleable(self, obs_dim, action_dim):
env = TfEnv(DummyBoxEnv(obs_dim=obs_dim, action_dim=action_dim))
with mock.patch(('garage.tf.policies.'
'gaussian_mlp_policy_with_model.GaussianMLPModel'),
new=SimpleGaussianMLPModel):
policy = GaussianMLPPolicyWithModel(env_spec=env.spec)
env.reset()
obs, _, _, _ = env.step(1)
obs_dim = env.spec.observation_space.flat_dim
with tf.variable_scope('GaussianMLPPolicyWithModel/GaussianMLPModel',
reuse=True):
return_var = tf.get_variable('return_var')
# assign it to all one
return_var.load(tf.ones_like(return_var).eval())
output1 = self.sess.run(
policy.model.outputs[:-1],
feed_dict={policy.model.input: [obs.flatten()]})
p = pickle.dumps(policy)
with tf.Session(graph=tf.Graph()) as sess:
policy_pickled = pickle.loads(p)
output2 = sess.run(
policy_pickled.model.outputs[:-1],
feed_dict={policy_pickled.model.input: [obs.flatten()]})
assert np.array_equal(output1, output2)
def test_get_action(self, obs_dim, task_num, latent_dim, action_dim):
env = TfEnv(DummyBoxEnv(obs_dim=obs_dim, action_dim=action_dim))
embedding_spec = InOutSpec(
input_space=akro.Box(low=np.zeros(task_num),
high=np.ones(task_num)),
output_space=akro.Box(low=np.zeros(latent_dim),
high=np.ones(latent_dim)))
encoder = GaussianMLPEncoder(embedding_spec)
policy = GaussianMLPTaskEmbeddingPolicy(env_spec=env.spec,
encoder=encoder)
env.reset()
obs, _, _, _ = env.step(1)
latent = np.random.random((latent_dim, ))
task = np.zeros(task_num)
task[0] = 1
action1, _ = policy.get_action_given_latent(obs, latent)
action2, _ = policy.get_action_given_task(obs, task)
action3, _ = policy.get_action(np.concatenate([obs.flatten(), task]))
assert env.action_space.contains(action1)
assert env.action_space.contains(action2)
assert env.action_space.contains(action3)
obses, latents, tasks = [obs] * 3, [latent] * 3, [task] * 3
aug_obses = [np.concatenate([obs.flatten(), task])] * 3
action1n, _ = policy.get_actions_given_latents(obses, latents)
action2n, _ = policy.get_actions_given_tasks(obses, tasks)
action3n, _ = policy.get_actions(aug_obses)
for action in chain(action1n, action2n, action3n):
assert env.action_space.contains(action)
def test_get_action(self, obs_dim, action_dim):
env = TfEnv(DummyBoxEnv(obs_dim=obs_dim, action_dim=action_dim))
with mock.patch(('garage.tf.policies.'
'gaussian_mlp_policy_with_model.GaussianMLPModel'),
new=SimpleGaussianMLPModel):
policy = GaussianMLPPolicyWithModel(env_spec=env.spec)
env.reset()
obs, _, _, _ = env.step(1)
action, prob = policy.get_action(obs)
expected_action = np.full(action_dim, 0.75)
expected_mean = np.full(action_dim, 0.5)
expected_log_std = np.full(action_dim, 0.5)
assert env.action_space.contains(action)
assert np.array_equal(action, expected_action)
assert np.array_equal(prob['mean'], expected_mean)
assert np.array_equal(prob['log_std'], expected_log_std)
actions, probs = policy.get_actions([obs, obs, obs])
for action, mean, log_std in zip(actions, probs['mean'],
probs['log_std']):
assert env.action_space.contains(action)
assert np.array_equal(action, expected_action)
assert np.array_equal(prob['mean'], expected_mean)
assert np.array_equal(prob['log_std'], expected_log_std)
def test_get_action(self, mock_rand, filter_dims, num_filters, strides,
padding, hidden_sizes):
mock_rand.return_value = 0
env = TfEnv(DummyDiscretePixelEnv())
policy = CategoricalCNNPolicy2(env_spec=env.spec,
filter_dims=filter_dims,
num_filters=num_filters,
strides=strides,
padding=padding,
hidden_sizes=hidden_sizes)
obs_var = tf.compat.v1.placeholder(tf.float32,
shape=(None, ) +
env.observation_space.shape,
name='obs')
policy.build(obs_var)
env.reset()
obs, _, _, _ = env.step(1)
action, _ = policy.get_action(obs)
assert env.action_space.contains(action)
actions, _ = policy.get_actions([obs, obs, obs])
for action in actions:
assert env.action_space.contains(action)
def test_get_qval_sym(self, obs_dim, action_dim):
env = TfEnv(DummyBoxEnv(obs_dim=obs_dim, action_dim=action_dim))
with mock.patch(('garage.tf.q_functions.'
'continuous_mlp_q_function.MLPMergeModel'),
new=SimpleMLPMergeModel):
qf = ContinuousMLPQFunction(env_spec=env.spec)
env.reset()
obs, _, _, _ = env.step(1)
obs = obs.flatten()
act = np.full(action_dim, 0.5).flatten()
output1 = qf.get_qval([obs], [act])
input_var1 = tf.compat.v1.placeholder(tf.float32,
shape=(None, obs.shape[0]))
input_var2 = tf.compat.v1.placeholder(tf.float32,
shape=(None, act.shape[0]))
q_vals = qf.get_qval_sym(input_var1, input_var2, 'another')
output2 = self.sess.run(q_vals,
feed_dict={
input_var1: [obs],
input_var2: [act]
})
expected_output = np.full((1, ), 0.5)
assert np.array_equal(output1, output2)
assert np.array_equal(output2[0], expected_output)
def test_is_pickleable(self, obs_dim, action_dim):
env = TfEnv(DummyBoxEnv(obs_dim=obs_dim, action_dim=action_dim))
with mock.patch(('garage.tf.q_functions.'
'continuous_mlp_q_function.MLPMergeModel'),
new=SimpleMLPMergeModel):
qf = ContinuousMLPQFunction(env_spec=env.spec)
env.reset()
obs, _, _, _ = env.step(1)
obs = obs.flatten()
act = np.full(action_dim, 0.5).flatten()
with tf.compat.v1.variable_scope(
'ContinuousMLPQFunction/SimpleMLPMergeModel', reuse=True):
return_var = tf.compat.v1.get_variable('return_var')
# assign it to all one
return_var.load(tf.ones_like(return_var).eval())
output1 = qf.get_qval([obs], [act])
h_data = pickle.dumps(qf)
with tf.compat.v1.Session(graph=tf.Graph()):
qf_pickled = pickle.loads(h_data)
output2 = qf_pickled.get_qval([obs], [act])
assert np.array_equal(output1, output2)
def test_is_pickleable(self, obs_dim, embedding_dim):
env = TfEnv(DummyBoxEnv(obs_dim=obs_dim, action_dim=embedding_dim))
with mock.patch(('garage.tf.embeddings.'
'gaussian_mlp_encoder.GaussianMLPModel'),
new=SimpleGaussianMLPModel):
embedding_spec = InOutSpec(input_space=env.spec.observation_space,
output_space=env.spec.action_space)
embedding = GaussianMLPEncoder(embedding_spec)
env.reset()
obs, _, _, _ = env.step(1)
obs_dim = env.spec.observation_space.flat_dim
with tf.compat.v1.variable_scope('GaussianMLPEncoder/GaussianMLPModel',
reuse=True):
return_var = tf.compat.v1.get_variable('return_var')
# assign it to all one
return_var.load(tf.ones_like(return_var).eval())
output1 = self.sess.run(
embedding.model.outputs[:-1],
feed_dict={embedding.model.input: [obs.flatten()]})
p = pickle.dumps(embedding)
with tf.compat.v1.Session(graph=tf.Graph()) as sess:
embedding_pickled = pickle.loads(p)
output2 = sess.run(
embedding_pickled.model.outputs[:-1],
feed_dict={embedding_pickled.model.input: [obs.flatten()]})
assert np.array_equal(output1, output2)
class TestStackFrames(unittest.TestCase):
def setUp(self):
self.n_frames = 4
self.env = TfEnv(DummyDiscrete2DEnv(random=False))
self.env_s = TfEnv(
StackFrames(
DummyDiscrete2DEnv(random=False), n_frames=self.n_frames))
self.width, self.height = self.env.observation_space.shape
def tearDown(self):
self.env.close()
self.env_s.close()
def test_stack_frames_invalid_environment_type(self):
with self.assertRaises(ValueError):
self.env.observation_space = Discrete(64)
StackFrames(self.env, n_frames=4)
def test_stack_frames_invalid_environment_shape(self):
with self.assertRaises(ValueError):
self.env.observation_space = Box(
low=0, high=255, shape=(4, ), dtype=np.uint8)
StackFrames(self.env, n_frames=4)
def test_stack_frames_output_observation_space(self):
assert self.env_s.observation_space.shape == (self.width, self.height,
self.n_frames)
def test_stack_frames_for_reset(self):
frame_stack = self.env.reset()
for i in range(self.n_frames - 1):
frame_stack = np.dstack((frame_stack, self.env.reset()))
np.testing.assert_array_equal(self.env_s.reset(), frame_stack)
def test_stack_frames_for_step(self):
self.env.reset()
self.env_s.reset()
frame_stack = np.empty((self.width, self.height, self.n_frames))
for i in range(10):
frame_stack = frame_stack[:, :, 1:]
obs, _, _, _ = self.env.step(1)
frame_stack = np.dstack((frame_stack, obs))
obs_stack, _, _, _ = self.env_s.step(1)
np.testing.assert_array_equal(obs_stack, frame_stack)
class TestRepeatAction(unittest.TestCase):
@overrides
def setUp(self):
self.env = TfEnv(DummyDiscreteEnv(random=False))
self.env_r = TfEnv(
RepeatAction(DummyDiscreteEnv(random=False), n_frame_to_repeat=4))
def test_repeat_action_reset(self):
np.testing.assert_array_equal(self.env.reset(), self.env_r.reset())
def test_repeat_action_step(self):
self.env.reset()
self.env_r.reset()
obs_repeat, _, _, _ = self.env_r.step(1)
for i in range(4):
obs, _, _, _ = self.env.step(1)
np.testing.assert_array_equal(obs, obs_repeat)
class TestNormalizedGym(unittest.TestCase):
@overrides
def setUp(self):
self.env = TfEnv(
normalize(gym.make('Pendulum-v0'),
normalize_reward=True,
normalize_obs=True,
flatten_obs=True))
def test_does_not_modify_action(self):
a = self.env.action_space.sample()
a_copy = a
self.env.reset()
self.env.step(a)
self.assertEquals(a, a_copy)
self.env.close()
def test_flatten(self):
for _ in range(10):
self.env.reset()
for _ in range(5):
self.env.render()
action = self.env.action_space.sample()
next_obs, _, done, _ = self.env.step(action)
self.assertEqual(next_obs.shape,
self.env.observation_space.low.shape)
if done:
break
self.env.close()
def test_unflatten(self):
for _ in range(10):
self.env.reset()
for _ in range(5):
action = self.env.action_space.sample()
next_obs, _, done, _ = self.env.step(action)
self.assertEqual(
self.env.observation_space.flatten(next_obs).shape,
self.env.observation_space.flat_dim)
if done:
break
self.env.close()
def test_output_shape(self, obs_dim, action_dim):
env = TfEnv(DummyDiscreteEnv(obs_dim=obs_dim, action_dim=action_dim))
with mock.patch(('garage.tf.q_functions.'
'discrete_mlp_q_function.MLPModel'),
new=SimpleMLPModel):
qf = DiscreteMLPQFunction(env_spec=env.spec)
env.reset()
obs, _, _, _ = env.step(1)
outputs = self.sess.run(qf.q_vals, feed_dict={qf.input: [obs]})
assert outputs.shape == (1, action_dim)
class TestNormalizedGym:
def setup_method(self):
self.env = TfEnv(
normalize(gym.make('Pendulum-v0'),
normalize_reward=True,
normalize_obs=True,
flatten_obs=True))
def teardown_method(self):
self.env.close()
def test_does_not_modify_action(self):
a = self.env.action_space.sample()
a_copy = a
self.env.reset()
self.env.step(a)
assert a == a_copy
def test_flatten(self):
for _ in range(10):
self.env.reset()
for _ in range(5):
self.env.render()
action = self.env.action_space.sample()
next_obs, _, done, _ = self.env.step(action)
assert next_obs.shape == self.env.observation_space.low.shape
if done:
break
def test_unflatten(self):
for _ in range(10):
self.env.reset()
for _ in range(5):
action = self.env.action_space.sample()
next_obs, _, done, _ = self.env.step(action)
# yapf: disable
assert (self.env.observation_space.flatten(next_obs).shape
== self.env.observation_space.flat_dim)
# yapf: enable
if done:
break
def test_output_shape(self, obs_dim, action_dim):
env = TfEnv(DummyBoxEnv(obs_dim=obs_dim, action_dim=action_dim))
with mock.patch(('garage.tf.q_functions.'
'continuous_mlp_q_function.MLPMergeModel'),
new=SimpleMLPMergeModel):
qf = ContinuousMLPQFunction(env_spec=env.spec)
env.reset()
obs, _, _, _ = env.step(1)
obs = obs.flatten()
act = np.full(action_dim, 0.5).flatten()
outputs = qf.get_qval([obs], [act])
assert outputs.shape == (1, 1)
def test_dist_info(self, obs_dim, action_dim):
env = TfEnv(DummyDiscreteEnv(obs_dim=obs_dim, action_dim=action_dim))
with mock.patch(('garage.tf.policies.'
'categorical_mlp_policy_with_model.MLPModel'),
new=SimpleMLPModel):
policy = CategoricalMLPPolicyWithModel(env_spec=env.spec)
env.reset()
obs, _, _, _ = env.step(1)
expected_prob = np.full(action_dim, 0.5)
policy_probs = policy.dist_info([obs.flatten()])
assert np.array_equal(policy_probs['prob'][0], expected_prob)
def test_get_embedding(self, obs_dim, embedding_dim):
env = TfEnv(DummyBoxEnv(obs_dim=obs_dim, action_dim=embedding_dim))
embedding_spec = InOutSpec(input_space=env.spec.observation_space,
output_space=env.spec.action_space)
embedding = GaussianMLPEncoder(embedding_spec)
task_input = tf.compat.v1.placeholder(tf.float32,
shape=(None, None,
embedding.input_dim))
embedding.build(task_input)
env.reset()
obs, _, _, _ = env.step(1)
latent, _ = embedding.forward(obs)
assert env.action_space.contains(latent)
class TestQfDerivedPolicy(TfGraphTestCase):
def setUp(self):
super().setUp()
self.env = TfEnv(DummyDiscreteEnv())
self.qf = SimpleQFunction(self.env.spec)
self.policy = DiscreteQfDerivedPolicy(
env_spec=self.env.spec, qf=self.qf)
self.sess.run(tf.global_variables_initializer())
self.env.reset()
def test_discrete_qf_derived_policy(self):
obs, _, _, _ = self.env.step(1)
action = self.policy.get_action(obs)
assert self.env.action_space.contains(action)
actions = self.policy.get_actions([obs])
for action in actions:
assert self.env.action_space.contains(action)
def test_is_pickleable(self, obs_dim, action_dim):
env = TfEnv(DummyBoxEnv(obs_dim=obs_dim, action_dim=action_dim))
with mock.patch(('garage.tf.policies.'
'deterministic_mlp_policy_with_model.MLPModel'),
new=SimpleMLPModel):
policy = DeterministicMLPPolicyWithModel(env_spec=env.spec)
env.reset()
obs, _, _, _ = env.step(1)
action1, _ = policy.get_action(obs)
p = pickle.dumps(policy)
with tf.Session(graph=tf.Graph()):
policy_pickled = pickle.loads(p)
action2, _ = policy_pickled.get_action(obs)
assert env.action_space.contains(action2)
assert np.array_equal(action1, action2)
def test_get_action(self, obs_dim, action_dim):
env = TfEnv(DummyDiscreteEnv(obs_dim=obs_dim, action_dim=action_dim))
with mock.patch(('garage.tf.q_functions.'
'discrete_mlp_q_function.MLPModel'),
new=SimpleMLPModel):
qf = DiscreteMLPQFunction(env_spec=env.spec)
env.reset()
obs, _, _, _ = env.step(1)
expected_output = np.full(action_dim, 0.5)
outputs = self.sess.run(qf.q_vals, feed_dict={qf.input: [obs]})
assert np.array_equal(outputs[0], expected_output)
outputs = self.sess.run(qf.q_vals,
feed_dict={qf.input: [obs, obs, obs]})
for output in outputs:
assert np.array_equal(output, expected_output)
