Flux.jl/test/backend/common.jl
2017-05-30 17:23:34 +01:00

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@net type TLP
first
second
function (x)
l1 = σ(first(x))
l2 = softmax(second(l1))
end
end
function test_tupleio(bk)
@testset "Tuple I/O" begin
val = [1,2,3]
tup = ([1,2,3],[4,5,6])
@test bk(@net x -> (identity(x),))(val) == (val,)
@test bk(@net x -> x[1].*x[2])(tup) == [4,10,18]
end
end
function test_recurrence(bk)
@testset "Recurrence" begin
seq = batchone(Seq(rand(10) for i = 1:3))
r = unroll(Recurrent(10, 5), 3)
rm = bk(r)
@test r(seq) rm(seq)
end
end
function test_back(bk)
@testset "Backward Pass" begin
xs, ys = rand(1, 20), rand(1, 20)
d = Affine(20, 10)
dm = bk(d)
d = deepcopy(d)
@test dm(xs) d(xs)
@test dm(xs) d(xs)
Δ = back!(dm, randn(1, 10), xs)
@test length(Δ[1]) == 20
update!(dm, 0.1)
@test dm(xs) d(xs)
@test dm(xs) d(xs)
end
end
function test_stacktrace(bk)
@testset "Stack Traces" begin
model = TLP(Affine(10, 20), Affine(21, 15))
dm = bk(model)
e = try dm(rand(1, 10))
catch e e end
@test isa(e, DataFlow.Interpreter.Exception)
@test e.trace[1].func == Symbol("Flux.Affine")
@test e.trace[2].func == :TLP
end
end
function test_anon(bk)
@testset "Closures" begin
x, y = rand(3), rand(5)
model = bk(@net xs -> map(x -> x .* x, xs))
@test all(model((x, y)) .≈ (x.*x, y.*y))
end
end