text: # Copyright 2018 DeepMind Technologies Limited. All rights reserved.
  #
  # Licensed under the Apache License, Version 2.0 (the "License");
  # you may not use this file except in compliance with the License.
  # You may obtain a copy of the License at
  #
  #     http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS,
  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  # See the License for the specific language governing permissions and
  # limitations under the License.
  
  """Tests for base."""
  
  import copy
  import pickle
  
  from acme.testing import fakes
  from acme.wrappers import base
  
  from absl.testing import absltest
  
  
  class BaseTest(absltest.TestCase):
  
    def test_pickle_unpickle(self):
      test_env = base.EnvironmentWrapper(environment=fakes.DiscreteEnvironment())
  
      test_env_pickled = pickle.dumps(test_env)
      test_env_restored = pickle.loads(test_env_pickled)
      self.assertEqual(
          test_env.observation_spec(),
          test_env_restored.observation_spec(),
      )
  
    def test_deepcopy(self):
      test_env = base.EnvironmentWrapper(environment=fakes.DiscreteEnvironment())
      copied_env = copy.deepcopy(test_env)
      del copied_env
  
  if __name__ == '__main__':
    absltest.main()
  