def test_sorting(self):
"""
Tests that the sorting method returns a list of ids sorted by the
absolute_position variable when sorting is requested, and does
nothing if it is not requested.
"""
env_params = self.env_params
env_params.additional_params['sort_vehicles'] = True
self.network.initial_config.shuffle = True
env = AccelEnv(
sim_params=self.sim_params,
network=self.network,
env_params=env_params
)
env.reset()
env.additional_command()
sorted_ids = env.sorted_ids
positions = [env.absolute_position[veh_id] for veh_id in sorted_ids]
# ensure vehicles ids are in sorted order by positions
self.assertTrue(
all(positions[i] <= positions[i + 1]
for i in range(len(positions) - 1)))
def test_no_sorting(self):
# setup a environment with the "sort_vehicles" attribute set to False,
# and shuffling so that the vehicles are not sorted by their ids
env_params = self.env_params
env_params.additional_params['sort_vehicles'] = False
self.scenario.initial_config.shuffle = True
env = AccelEnv(sim_params=self.sim_params,
scenario=self.scenario,
env_params=env_params)
env.reset()
env.additional_command()
sorted_ids = list(env.sorted_ids)
ids = env.k.vehicle.get_ids()
# ensure that the list of ids did not change
self.assertListEqual(sorted_ids, ids)