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import torch
from torch_geometric.data import Data
from torch_geometric.transforms import TargetIndegree
def test_target_indegree():
assert str(TargetIndegree()) == 'TargetIndegree(norm=True, max_value=None)'
edge_index = torch.tensor([[0, 1, 1, 2], [1, 0, 2, 1]])
edge_attr = torch.tensor([1.0, 1.0, 1.0, 1.0])
data = Data(edge_index=edge_index, num_nodes=3)
data = TargetIndegree(norm=False)(data)
assert len(data) == 3
assert data.edge_index.tolist() == edge_index.tolist()
assert data.edge_attr.tolist() == [[2], [1], [1], [2]]
assert data.num_nodes == 3
data = Data(edge_index=edge_index, edge_attr=edge_attr, num_nodes=3)
data = TargetIndegree(norm=True)(data)
assert len(data) == 3
assert data.edge_index.tolist() == edge_index.tolist()
assert data.edge_attr.tolist() == [[1, 1], [1, 0.5], [1, 0.5], [1, 1]]
assert data.num_nodes == 3
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