36 lines
1.3 KiB
Python
36 lines
1.3 KiB
Python
# Copyright The PyTorch Lightning team.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import pytest
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import torch
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from lightning_lite.utilities.apply_func import move_data_to_device
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@pytest.mark.parametrize("should_return", [False, True])
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def test_wrongly_implemented_transferable_data_type(should_return):
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class TensorObject:
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def __init__(self, tensor: torch.Tensor, should_return: bool = True):
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self.tensor = tensor
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self.should_return = should_return
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def to(self, device):
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self.tensor.to(device)
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# simulate a user forgets to return self
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if self.should_return:
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return self
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tensor = torch.tensor(0.1)
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obj = TensorObject(tensor, should_return)
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assert obj == move_data_to_device(obj, torch.device("cpu"))
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