Update conv_tests.jl

Author: rbSparky

GNNLux/test/layers/conv_tests.jl

@@ -1,11 +1,13 @@
 @testitem "layers/conv" setup=[SharedTestSetup] begin
     rng = StableRNG(1234)
     edim = 10
-    g = GNNGraph(g, edata = rand(Float32, edim, g.num_edges)) 
+    g = rand_graph(10, 40)
     in_dims = 3
     out_dims = 5
     x = randn(rng, Float32, in_dims, 10)
 
+    g = GNNGraph(g, edata = rand(Float32, edim, g.num_edges)) 
+
     @testset "GCNConv" begin
         l = GCNConv(in_dims => out_dims, tanh)
         test_lux_layer(rng, l, g, x, outputsize=(out_dims,))