def test_vecenv_parallel(self):
"""
Tests working of parallel VecEnvs
"""
env = VectorEnv("CartPole-v1", 2, parallel=True)
env.seed(0)
observation_space, action_space = env.get_spaces()
env.reset()
env.step(env.sample())
env.close()
def test_vecenv_serial(self):
"""
Tests working of serial VecEnvs
"""
env = VectorEnv("CartPole-v1", 2, parallel=False)
env.seed(0)
ob, ac = env.observation_spaces, env.action_spaces
env.reset()
env.step(env.sample())
env.close()
def test_vecnormalize(self):
"""
Tests working of the VecNormalize wrapper
"""
env = VectorEnv("CartPole-v1", 2)
env = VecNormalize(env, norm_obs=True, norm_reward=True, clip_reward=1.0,)
env.reset()
_, rewards, _, _ = env.step(env.sample())
env.close()
assert np.all(-1.0 <= rewards)
assert np.all(1.0 >= rewards)
def test_vecmonitor(self):
"""
Tests working of the VecMonitor wrapper
"""
env = VectorEnv("CartPole-v1", 2)
env = VecMonitor(env, history_length=1)
env.reset()
_, _, _, info = env.step(env.sample())
env.close()
dones = [0, 0]
while not dones[0]:
_, _, dones, infos = env.step(env.sample())
info = infos[0]["episode"]
assert info["Episode Rewards"]
assert info["Episode Length"]
assert info["Time taken"]