def test_get_action_sym(self, obs_dim, action_dim):
env = TfEnv(DummyBoxEnv(obs_dim=obs_dim, action_dim=action_dim))
with mock.patch(('garage.tf.policies.'
'continuous_mlp_policy_with_model.MLPModel'),
new=SimpleMLPModel):
policy = ContinuousMLPPolicyWithModel(env_spec=env.spec)
env.reset()
obs, _, _, _ = env.step(1)
obs_dim = env.spec.observation_space.flat_dim
state_input = tf.placeholder(tf.float32, shape=(None, obs_dim))
action_sym = policy.get_action_sym(state_input, name='action_sym')
expected_action = np.full(action_dim, 0.5)
action = self.sess.run(action_sym,
feed_dict={state_input: [obs.flatten()]})
action = policy.action_space.unflatten(action)
assert np.array_equal(action, expected_action)
assert env.action_space.contains(action)
class TestContinuousMLPPolicyWithModelTransit(TfGraphTestCase):
def setup_method(self):
with mock.patch('tensorflow.random.normal') as mock_rand:
mock_rand.return_value = 0.5
super().setup_method()
self.box_env = TfEnv(DummyBoxEnv())
self.policy1 = ContinuousMLPPolicy(
env_spec=self.box_env, hidden_sizes=(32, 32), name='P1')
self.policy2 = ContinuousMLPPolicy(
env_spec=self.box_env, hidden_sizes=(64, 64), name='P2')
self.policy3 = ContinuousMLPPolicyWithModel(
env_spec=self.box_env, hidden_sizes=(32, 32), name='P3')
self.policy4 = ContinuousMLPPolicyWithModel(
env_spec=self.box_env, hidden_sizes=(64, 64), name='P4')
self.sess.run(tf.compat.v1.global_variables_initializer())
for a, b in zip(self.policy3.get_params(),
self.policy1.get_params()):
self.sess.run(a.assign(b))
for a, b in zip(self.policy4.get_params(),
self.policy2.get_params()):
self.sess.run(a.assign(b))
self.obs = self.box_env.reset()
self.action_bound = self.box_env.action_space.high
assert self.policy1.vectorized == self.policy2.vectorized
assert self.policy3.vectorized == self.policy4.vectorized
@mock.patch('numpy.random.normal')
def test_get_action(self, mock_rand):
mock_rand.return_value = 0.5
action1, _ = self.policy1.get_action(self.obs)
action2, _ = self.policy2.get_action(self.obs)
action3, _ = self.policy3.get_action(self.obs)
action4, _ = self.policy4.get_action(self.obs)
assert np.array_equal(action1, action3 * self.action_bound)
assert np.array_equal(action2, action4 * self.action_bound)
actions1, _ = self.policy1.get_actions([self.obs, self.obs])
actions2, _ = self.policy2.get_actions([self.obs, self.obs])
actions3, _ = self.policy3.get_actions([self.obs, self.obs])
actions4, _ = self.policy4.get_actions([self.obs, self.obs])
assert np.array_equal(actions1, actions3 * self.action_bound)
assert np.array_equal(actions2, actions4 * self.action_bound)
def test_get_action_sym(self):
obs_dim = self.box_env.spec.observation_space.flat_dim
state_input = tf.compat.v1.placeholder(
tf.float32, shape=(None, obs_dim))
action_sym1 = self.policy1.get_action_sym(
state_input, name='action_sym')
action_sym2 = self.policy2.get_action_sym(
state_input, name='action_sym')
action_sym3 = self.policy3.get_action_sym(
state_input, name='action_sym')
action_sym4 = self.policy4.get_action_sym(
state_input, name='action_sym')
action1 = self.sess.run(
action_sym1, feed_dict={state_input: [self.obs]})
action2 = self.sess.run(
action_sym2, feed_dict={state_input: [self.obs]})
action3 = self.sess.run(
action_sym3, feed_dict={state_input: [self.obs]})
action4 = self.sess.run(
action_sym4, feed_dict={state_input: [self.obs]})
assert np.array_equal(action1, action3 * self.action_bound)
assert np.array_equal(action2, action4 * self.action_bound)