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[DGL-Go] CI for DGL-Go (#3959)  
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import pytest
import torch
from dglgo.model import *
from test_utils.graph_cases import get_cases

@pytest.mark.parametrize('g', get_cases(['has_scalar_e_feature']))
def test_gcn(g):
    data_info = {
        'num_nodes': g.num_nodes(),
        'out_size': 7
    }
    node_feat = None
    edge_feat = g.edata['scalar_w']

    # node embedding + not use_edge_weight
    model = GCN(data_info, embed_size=10, use_edge_weight=False)
    model(g, node_feat)

    # node embedding + use_edge_weight
    model = GCN(data_info, embed_size=10, use_edge_weight=True)
    model(g, node_feat, edge_feat)

    data_info['in_size'] = g.ndata['h'].shape[-1]
    node_feat = g.ndata['h']

    # node feat + not use_edge_weight
    model = GCN(data_info, embed_size=-1, use_edge_weight=False)
    model(g, node_feat)

    # node feat + use_edge_weight
    model = GCN(data_info, embed_size=-1, use_edge_weight=True)
    model(g, node_feat, edge_feat)

@pytest.mark.parametrize('g', get_cases(['block-bipartite']))
def test_gcn_block(g):
    data_info = {
        'in_size': 10,
        'out_size': 7
    }

    blocks = [g]
    node_feat = torch.randn(g.num_src_nodes(), data_info['in_size'])
    edge_feat = torch.abs(torch.randn(g.num_edges()))
    # not use_edge_weight
    model = GCN(data_info, use_edge_weight=False)
    model.forward_block(blocks, node_feat)

    # use_edge_weight
    model = GCN(data_info, use_edge_weight=True)
    model.forward_block(blocks, node_feat, edge_feat)

@pytest.mark.parametrize('g', get_cases(['has_scalar_e_feature']))
def test_gat(g):
    data_info = {
        'num_nodes': g.num_nodes(),
        'out_size': 7
    }
    node_feat = None

    # node embedding
    model = GAT(data_info, embed_size=10)
    model(g, node_feat)

    # node feat
    data_info['in_size'] = g.ndata['h'].shape[-1]
    node_feat = g.ndata['h']
    model = GAT(data_info, embed_size=-1)
    model(g, node_feat)

@pytest.mark.parametrize('g', get_cases(['block-bipartite']))
def test_gat_block(g):
    data_info = {
        'in_size': 10,
        'out_size': 7
    }

    blocks = [g]
    node_feat = torch.randn(g.num_src_nodes(), data_info['in_size'])
    model = GAT(data_info, num_layers=1, heads=[8])
    model.forward_block(blocks, node_feat)

@pytest.mark.parametrize('g', get_cases(['has_scalar_e_feature']))
def test_gin(g):
    data_info = {
        'num_nodes': g.num_nodes(),
        'out_size': 7
    }
    node_feat = None

    # node embedding
    model = GIN(data_info, embed_size=10)
    model(g, node_feat)

    # node feat
    data_info['in_size'] = g.ndata['h'].shape[-1]
    node_feat = g.ndata['h']
    model = GIN(data_info, embed_size=-1)
    model(g, node_feat)

@pytest.mark.parametrize('g', get_cases(['has_scalar_e_feature']))
def test_sage(g):
    data_info = {
        'num_nodes': g.num_nodes(),
        'out_size': 7
    }
    node_feat = None
    edge_feat = g.edata['scalar_w']

    # node embedding
    model = GraphSAGE(data_info, embed_size=10)
    model(g, node_feat)
    model(g, node_feat, edge_feat)

    # node feat
    data_info['in_size'] = g.ndata['h'].shape[-1]
    node_feat = g.ndata['h']
    model = GraphSAGE(data_info, embed_size=-1)
    model(g, node_feat)
    model(g, node_feat, edge_feat)

@pytest.mark.parametrize('g', get_cases(['block-bipartite']))
def test_sage_block(g):
    data_info = {
        'in_size': 10,
        'out_size': 7
    }

    blocks = [g]
    node_feat = torch.randn(g.num_src_nodes(), data_info['in_size'])
    edge_feat = torch.abs(torch.randn(g.num_edges()))
    model = GraphSAGE(data_info, embed_size=-1)
    model.forward_block(blocks, node_feat)
    model.forward_block(blocks, node_feat, edge_feat)

@pytest.mark.parametrize('g', get_cases(['has_scalar_e_feature']))
def test_sgc(g):
    data_info = {
        'num_nodes': g.num_nodes(),
        'out_size': 7
    }
    node_feat = None

    # node embedding
    model = SGC(data_info, embed_size=10)
    model(g, node_feat)

    # node feat
    data_info['in_size'] = g.ndata['h'].shape[-1]
    node_feat = g.ndata['h']
    model = SGC(data_info, embed_size=-1)
    model(g, node_feat)

def test_bilinear():
    data_info = {
        'in_size': 10,
        'out_size': 1
    }
    model = BilinearPredictor(data_info)
    num_pairs = 10
    h_src = torch.randn(num_pairs, data_info['in_size'])
    h_dst = torch.randn(num_pairs, data_info['in_size'])
    model(h_src, h_dst)

def test_ele():
    data_info = {
        'in_size': 10,
        'out_size': 1
    }
    model = ElementWiseProductPredictor(data_info)
    num_pairs = 10
    h_src = torch.randn(num_pairs, data_info['in_size'])
    h_dst = torch.randn(num_pairs, data_info['in_size'])
    model(h_src, h_dst)