Files
2026-07-13 13:35:51 +08:00

69 lines
2.0 KiB
Python

import math
import unittest
import backend as F
import dgl
from utils import parametrize_idtype
@unittest.skipIf(
dgl.backend.backend_name != "pytorch", reason="Only support PyTorch for now"
)
@parametrize_idtype
def test_node_homophily(idtype):
# IfChangeThenChange: python/dgl/homophily.py
# Update the docstring example.
device = F.ctx()
graph = dgl.graph(
([1, 2, 0, 4], [0, 1, 2, 3]), idtype=idtype, device=device
)
y = F.tensor([0, 0, 0, 0, 1])
assert math.isclose(dgl.node_homophily(graph, y), 0.6000000238418579)
@unittest.skipIf(
dgl.backend.backend_name != "pytorch", reason="Only support PyTorch for now"
)
@parametrize_idtype
def test_edge_homophily(idtype):
# IfChangeThenChange: python/dgl/homophily.py
# Update the docstring example.
device = F.ctx()
graph = dgl.graph(
([1, 2, 0, 4], [0, 1, 2, 3]), idtype=idtype, device=device
)
y = F.tensor([0, 0, 0, 0, 1])
assert math.isclose(dgl.edge_homophily(graph, y), 0.75)
@unittest.skipIf(
dgl.backend.backend_name != "pytorch", reason="Only support PyTorch for now"
)
@parametrize_idtype
def test_linkx_homophily(idtype):
# IfChangeThenChange: python/dgl/homophily.py
# Update the docstring example.
device = F.ctx()
graph = dgl.graph(([0, 1, 2, 3], [1, 2, 0, 4]), device=device)
y = F.tensor([0, 0, 0, 0, 1])
assert math.isclose(dgl.linkx_homophily(graph, y), 0.19999998807907104)
y = F.tensor([0, 1, 2, 3, 4])
assert math.isclose(dgl.linkx_homophily(graph, y), 0.0000000000000000)
@unittest.skipIf(
dgl.backend.backend_name != "pytorch", reason="Only support PyTorch for now"
)
@parametrize_idtype
def test_adjusted_homophily(idtype):
# IfChangeThenChange: python/dgl/homophily.py
# Update the docstring example.
device = F.ctx()
graph = dgl.graph(
([1, 2, 0, 4], [0, 1, 2, 3]), idtype=idtype, device=device
)
y = F.tensor([0, 0, 0, 0, 1])
assert math.isclose(dgl.adjusted_homophily(graph, y), -0.1428571492433548)