add tests for AbstractGPUArray

Author: marius311

Project.toml

@@ -32,8 +32,9 @@ julia = "1.6"
 Calculus = "49dc2e85-a5d0-5ad3-a950-438e2897f1b9"
 DiffTests = "de460e47-3fe3-5279-bb4a-814414816d5d"
 InteractiveUtils = "b77e0a4c-d291-57a0-90e8-8db25a27a240"
+JLArrays = "27aeb0d3-9eb9-45fb-866b-73c2ecf80fcb"
 SparseArrays = "2f01184e-e22b-5df5-ae63-d93ebab69eaf"
 Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
 
 [targets]
-test = ["Calculus", "DiffTests", "SparseArrays", "Test", "InteractiveUtils"]
+test = ["Calculus", "DiffTests", "SparseArrays", "Test", "InteractiveUtils", "JLArrays"]

test/GradientTest.jl

@@ -8,6 +8,7 @@ using ForwardDiff
 using ForwardDiff: Dual, Tag
 using StaticArrays
 using DiffTests
+using JLArrays
 
 include(joinpath(dirname(@__FILE__), "utils.jl"))
 
@@ -149,6 +150,20 @@ end
     @test isequal(ForwardDiff.gradient(t -> t[1]^t[2], [0.0,  1.5]), [0.0, 0.0])
 end
 
+
+##############################################
+# test GPUArray compatibility (via JLArrays) #
+##############################################
+
+println("  ...testing GPUArray compatibility (via JLArrays)")
+
+@testset "size = $(size(x))" for x in JLArray.([rand(3), rand(13), rand(3,3), rand(13,13), rand(10,10,10)])
+    
+    @test ForwardDiff.gradient(prod, x) isa typeof(x)
+
+end
+
+
 #############
 # bug fixes #
 #############