[Code Coverage] APPNP

[zechengz]

Add some tests to APPNP

[codecov]

Codecov Report

Merging #6558 (8a46d1c) into master (0b1ecb3) will decrease coverage by 1.68%.
The diff coverage is n/a.

❗ Current head 8a46d1c differs from pull request most recent head 19f9b01. Consider uploading reports for the commit 19f9b01 to get more accurate results

@@            Coverage Diff             @@
##           master    #6558      +/-   ##
==========================================
- Coverage   87.61%   85.94%   -1.68%     
==========================================
  Files         412      412              
  Lines       22823    22784      -39     
==========================================
- Hits        19996    19581     -415     
- Misses       2827     3203     +376     

Impacted Files	Coverage Δ
torch_geometric/nn/models/dimenet_utils.py	0.00% <0.00%> (-75.52%)	⬇️
torch_geometric/nn/models/dimenet.py	17.84% <0.00%> (-49.66%)	⬇️
torch_geometric/visualization/graph.py	68.25% <0.00%> (-26.99%)	⬇️
torch_geometric/profile/profile.py	33.33% <0.00%> (-25.39%)	⬇️
torch_geometric/nn/conv/utils/typing.py	83.75% <0.00%> (-15.00%)	⬇️
torch_geometric/nn/pool/asap.py	92.00% <0.00%> (-8.00%)	⬇️
torch_geometric/nn/inits.py	67.85% <0.00%> (-7.15%)	⬇️
torch_geometric/resolver.py	82.75% <0.00%> (-6.90%)	⬇️
torch_geometric/nn/dense/linear.py	89.05% <0.00%> (-5.88%)	⬇️
torch_geometric/transforms/add_self_loops.py	94.44% <0.00%> (-5.56%)	⬇️
... and 33 more

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