add some tests for sparsematrixcsc

Author: Abdelrahman912

test/base/kernelabstractions.jl

@@ -1,7 +1,28 @@
-import KernelAbstractions
-include(joinpath(dirname(pathof(KernelAbstractions)), "..", "test", "testsuite.jl"))
+import KernelAbstractions as KA
+using SparseArrays
+using Adapt
+
+include(joinpath(dirname(pathof(KA)), "..", "test", "testsuite.jl"))
 
 Testsuite.testsuite(()->CUDABackend(false, false), "CUDA", CUDA, CuArray, CuDeviceArray)
 for (PreferBlocks, AlwaysInline) in Iterators.product((true, false), (true, false))
     Testsuite.unittest_testsuite(()->CUDABackend(PreferBlocks, AlwaysInline), "CUDA", CUDA, CuDeviceArray)
 end
+
+@testset "KA.functional" begin
+    @test KA.functional(CUDABackend()) == CUDA.functional()
+end
+
+@testset "CUDA Backend Adapt Tests" begin
+    # CPU → GPU
+    A = sprand(Float32, 10, 10, 0.5) #CSC
+    A_d = adapt(CUDABackend(), A) 
+    @test A_d isa CUSPARSE.CuSparseMatrixCSC
+    @test adapt(CUDABackend(), A_d) |> typeof == typeof(A_d)
+
+    # GPU → CPU
+    B_d = A |> cu # CuCSC
+    B = adapt(KA.CPU(), A_d)
+    @test B isa SparseMatrixCSC
+    @test adapt(KA.CPU(), B) |> typeof == typeof(B) 
+end