Test dropout(::MersenneTwister, ::CuArray, ...)

Author: darsnack

test/cuda/layers.jl

@@ -282,6 +282,7 @@ end
 end
 
 @testset "Dropout RNGs" begin
+  @test_throws ArgumentError dropout(MersenneTwister(), CUDA.rand(Float32, 2, 3), 0.1)
   @testset for layer in (Dropout, AlphaDropout)
     m = layer(0.1; rng = MersenneTwister(123))
     @test_throws ErrorException gpu(m)