start porting tests to testitem

Author: CarloLucibello

GNNGraphs/test/Project.toml

@@ -0,0 +1,11 @@
+[deps]
+FiniteDifferences = "26cc04aa-876d-5657-8c51-4c34ba976000"
+GNNGraphs = "aed8fd31-079b-4b5a-b342-a13352159b8c"
+Graphs = "86223c79-3864-5bf0-83f7-82e725a168b6"
+LinearAlgebra = "37e2e46d-f89d-539d-b4ee-838fcccc9c8e"
+MLUtils = "f1d291b0-491e-4a28-83b9-f70985020b54"
+Random = "9a3f8284-a2c9-5f02-9a11-845980a1fd5c"
+Reexport = "189a3867-3050-52da-a836-e630ba90ab69"
+Statistics = "10745b16-79ce-11e8-11f9-7d13ad32a3b2"
+Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
+TestItems = "1c621080-faea-4a02-84b6-bbd5e436b8fe"

GNNGraphs/test/runtests.jl

@@ -29,7 +29,7 @@ tests = [
     "datastore",
     "gnngraph",
     "convert",
-    "transform",
+    # "transform",
     "operators",
     "generate",
     "query",

GNNGraphs/test/test_module.jl

@@ -0,0 +1,31 @@
+@testmodule GraphsTestModule begin
+using FiniteDifferences: FiniteDifferences
+using Reexport: @reexport
+using MLUtils: MLUtils
+
+@reexport using Random
+@reexport using Statistics
+@reexport using LinearAlgebra
+@reexport using GNNGraphs
+@reexport using Test
+@reexport using Graphs
+export MLUtils
+
+export ngradient
+export GRAPH_TYPES
+
+
+# Using this until https://github.com/JuliaDiff/FiniteDifferences.jl/issues/188 is fixed
+function FiniteDifferences.to_vec(x::Integer)
+    Integer_from_vec(v) = x
+    return Int[x], Integer_from_vec
+end
+
+function ngradient(f, x...)
+    fdm = FiniteDifferences.central_fdm(5, 1)
+    return FiniteDifferences.grad(fdm, f, x...)
+end
+
+const GRAPH_TYPES = [:coo, :dense, :sparse]
+
+end # module