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Add missing TensorDict tests #271

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Merged
ValerianRey merged 2 commits into from
Mar 25, 2025
Merged

Add missing TensorDict tests #271

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ed171e6
Add test_immutability
ValerianRey Mar 25, 2025
a7bd0c0
Add test_empty_tensor_dict
ValerianRey Mar 25, 2025
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17 changes: 17 additions & 0 deletions tests/unit/autojac/_transform/test_tensor_dict.py
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Original file line number Diff line number Diff line change
Expand Up @@ -110,3 +110,20 @@ def _assert_class_checks_properly(

def _make_tensor_dict(value_shapes: list[list[int]]) -> dict[Tensor, Tensor]:
return {torch.zeros(key): torch.zeros(value) for key, value in zip(_key_shapes, value_shapes)}


def test_immutability():
"""Tests that it's impossible to modify an existing TensorDict."""

t = Gradients({})
with raises(TypeError):
t[torch.ones(1)] = torch.ones(1)

assert t == Gradients({})


def test_empty_tensor_dict():
"""Tests that it's impossible to instantiate a non-empty EmptyTensorDict."""

with raises(ValueError):
_ = EmptyTensorDict({torch.ones(1): torch.ones(1)})