def test_gaussian_lstm_policy(self):
gaussian_lstm_policy = GaussianLSTMPolicy(env_spec=self.env,
hidden_dim=1,
state_include_action=False)
self.sess.run(tf.compat.v1.global_variables_initializer())
gaussian_lstm_policy.build(self.obs_var)
gaussian_lstm_policy.reset()
obs = self.env.observation_space.high
assert gaussian_lstm_policy.get_action(obs)
def test_is_pickleable(self):
env = MetaRLEnv(DummyBoxEnv(obs_dim=(1, ), action_dim=(1, )))
obs_var = tf.compat.v1.placeholder(
tf.float32,
shape=[None, None, env.observation_space.flat_dim],
name='obs')
policy = GaussianLSTMPolicy(env_spec=env.spec,
state_include_action=False)
policy.build(obs_var)
env.reset()
obs = env.reset()
with tf.compat.v1.variable_scope(
'GaussianLSTMPolicy/GaussianLSTMModel', reuse=True):
param = tf.compat.v1.get_variable(
'dist_params/log_std_param/parameter')
# assign it to all one
param.load(tf.ones_like(param).eval())
output1 = self.sess.run(
[policy.distribution.loc,
policy.distribution.stddev()],
feed_dict={policy.model.input: [[obs.flatten()], [obs.flatten()]]})
p = pickle.dumps(policy)
# yapf: disable
with tf.compat.v1.Session(graph=tf.Graph()) as sess:
policy_pickled = pickle.loads(p)
obs_var = tf.compat.v1.placeholder(
tf.float32,
shape=[None, None, env.observation_space.flat_dim],
name='obs')
policy_pickled.build(obs_var)
output2 = sess.run(
[
policy_pickled.distribution.loc,
policy_pickled.distribution.stddev()
],
feed_dict={
policy_pickled.model.input: [[obs.flatten()],
[obs.flatten()]]
})
assert np.array_equal(output1, output2)
def test_get_action(self, obs_dim, action_dim, hidden_dim):
env = MetaRLEnv(DummyBoxEnv(obs_dim=obs_dim, action_dim=action_dim))
obs_var = tf.compat.v1.placeholder(
tf.float32,
shape=[None, None, env.observation_space.flat_dim],
name='obs')
policy = GaussianLSTMPolicy(env_spec=env.spec,
hidden_dim=hidden_dim,
state_include_action=False)
policy.build(obs_var)
policy.reset()
obs = env.reset()
action, _ = policy.get_action(obs.flatten())
assert env.action_space.contains(action)
actions, _ = policy.get_actions([obs.flatten()])
for action in actions:
assert env.action_space.contains(action)
