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import torch
from torch_geometric.data import Data
from torch_geometric.transforms import OneHotDegree
def test_one_hot_degree():
assert str(OneHotDegree(max_degree=3)) == 'OneHotDegree(3)'
edge_index = torch.tensor([[0, 0, 0, 1, 2, 3], [1, 2, 3, 0, 0, 0]])
x = torch.tensor([1.0, 1.0, 1.0, 1.0])
data = Data(edge_index=edge_index, num_nodes=4)
data = OneHotDegree(max_degree=3)(data)
assert len(data) == 3
assert data.edge_index.tolist() == edge_index.tolist()
assert data.x.tolist() == [
[0.0, 0.0, 0.0, 1.0],
[0.0, 1.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 0.0],
]
assert data.num_nodes == 4
data = Data(edge_index=edge_index, x=x)
data = OneHotDegree(max_degree=3)(data)
assert len(data) == 2
assert data.edge_index.tolist() == edge_index.tolist()
assert data.x.tolist() == [
[1.0, 0.0, 0.0, 0.0, 1.0],
[1.0, 0.0, 1.0, 0.0, 0.0],
[1.0, 0.0, 1.0, 0.0, 0.0],
[1.0, 0.0, 1.0, 0.0, 0.0],
]
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