File: test_functions.py

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pytorch-geometric 2.6.1-7
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import torch

from torch_geometric.utils import cumsum


def test_cumsum():
    x = torch.tensor([2, 4, 1])
    assert cumsum(x).tolist() == [0, 2, 6, 7]

    x = torch.tensor([[2, 4], [3, 6]])
    assert cumsum(x, dim=1).tolist() == [[0, 2, 6], [0, 3, 9]]