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26 changes: 26 additions & 0 deletions test/mocking_classes.py
Original file line number Diff line number Diff line change
Expand Up @@ -2242,3 +2242,29 @@ def _set_seed(self, seed: Optional[int]):
random.seed(seed)
torch.manual_seed(0)
return seed


class EnvThatErrorsAfter10Iters(EnvBase):
def __init__(self):
self.action_spec = Composite(action=Unbounded((1,)))
self.reward_spec = Composite(reward=Unbounded((1,)))
self.done_spec = Composite(done=Unbounded((1,)))
self.observation_spec = Composite(observation=Unbounded((1,)))
self.counter = 0
super().__init__()

def _reset(self, tensordict: TensorDictBase, **kwargs) -> TensorDict:
return self.full_observation_spec.zero().update(self.full_done_spec.zero())

def _step(self, tensordict: TensorDictBase, **kwargs) -> TensorDict:
if self.counter >= 10:
raise RuntimeError("max steps!")
self.counter += 1
return (
self.full_observation_spec.zero()
.update(self.full_done_spec.zero())
.update(self.full_reward_spec.zero())
)

def _set_seed(self, seed: Optional[int]):
...
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