code: def test_corona_product():
      G = nx.cycle_graph(3)
      H = nx.path_graph(2)
      C = nx.corona_product(G, H)
      assert len(C) == (len(G) * len(H)) + len(G)
      assert C.size() == G.size() + len(G) * H.size() + len(G) * len(H)
  
imports: import pytest
  import networkx
  from networkx.utils import edges_equal
label_desc: Use image node_id 28 for calling a global function with example usage: test_corona_product() without return types