Add random graphs to interface check

Author: Max0nyshchenko

src/VNGraphs.jl

@@ -138,7 +138,7 @@ end
 Base.eltype(::VNGraph) = Cuint
 Base.zero(::Type{VNGraph}) = VNGraph(0)
 Graphs.edgetype(g::VNGraph) = Graphs.SimpleGraphs.SimpleEdge{eltype(g)}
-Graphs.has_edge(g::VNGraph,s,d) = graph_has_edge(g,s,d)
+Graphs.has_edge(g::VNGraph,s,d)::Bool = graph_has_edge(g,s-1,d-1)
 Graphs.has_vertex(g::VNGraph,n::Integer) = 1≤n≤nnodes(g)
 Graphs.inneighbors(g::VNGraph, v::Integer) = Graphs.outneighbors(g, v)
 Graphs.is_directed(::Type{VNGraph}) = false

test/test_consistency.jl

@@ -16,7 +16,14 @@ g = VNGraph(5); for i in 2:5 Graphs.add_edge!(g,1,i) end; Graphs.add_edge!(g,2,5
 @test VNGraphs.graph_chromatic_number(g,0)==3
 
 @testset "Graphs.jl Interface Check for VNGraph" begin
-    vngs = [VNGraph(12), VNGraph(20), VNGraph(5)]
+    vngs = [
+        VNGraph(12), 
+        VNGraph(20), 
+        VNGraph(5), 
+        VNGraph(Graphs.random_regular_graph(5, 4)), 
+        VNGraph(Graphs.random_regular_graph(10, 3)), 
+        VNGraph(Graphs.random_regular_graph(12, 5)),
+    ]
     Interfaces.@implements GraphsInterfaceChecker.AbstractGraphInterface VNGraph vngs
     @test Interfaces.test(GraphsInterfaceChecker.AbstractGraphInterface, VNGraph)
 end