fix tests using nondifferentials

remove debug statement

test/rulesets/Base/base.jl

@@ -43,7 +43,7 @@
  test_scalar(acscd, 1/x)
  test_scalar(acotd, 1/x)
  end
- 
+
  @testset "sinc" for x = (0.0, 0.434, Complex(0.434, 0.25))
  test_scalar(sinc, x)
  end
@@ -126,14 +126,14 @@
  frule_test(identity, (randn(T, 4), randn(T, 4)))
  frule_test(
  identity,
- (Composite{Tuple}(randn(T, 3)...), Composite{Tuple}(randn(T, 3)...))
+ (Tuple(randn(T, 3)), Composite{Tuple{T, T, T}}(randn(T, 3)...))
  )
 
  rrule_test(identity, randn(T), (randn(T), randn(T)))
  rrule_test(identity, randn(T, 4), (randn(T, 4), randn(T, 4)))
  rrule_test(
- identity, Tuple(randn(T, 3)),
- (Composite{Tuple}(randn(T, 3)...), Composite{Tuple}(randn(T, 3)...))
+ identity, Composite{Tuple{T, T, T}}(randn(T, 3)...),
+ (Tuple(randn(T, 3)), Composite{Tuple{T, T, T}}(randn(T, 3)...))
  )
  end
 

test/rulesets/Base/evalpoly.jl

@@ -27,9 +27,8 @@
  Ω = evalpoly(x, p)
  Ω̄ = randn(T, size(Ω)...)
  frule_test(evalpoly, (x, ẋ), (p, ṗ))
- frule_test(evalpoly, (x, ẋ), (Tuple(p), Tuple(ṗ)))
+ frule_test(evalpoly, (x, ẋ), (Tuple(p), rand_tangent(Tuple(p))))
  rrule_test(evalpoly, Ω̄, (x, x̄), (p, p̄))
- rrule_test(evalpoly, Ω̄, (x, x̄), (Tuple(p), Tuple(p̄)))
+ rrule_test(evalpoly, Ω̄, (x, x̄), (Tuple(p), rand_tangent(Tuple(p))))
  end
  end
-

test/rulesets/packages/SpecialFunctions.jl

@@ -50,7 +50,7 @@ end
  isreal(x) || continue
 
  Δx, x̄ = randn(2)
- Δz = (randn(), randn())
+ Δz = Composite{Tuple{Float64, DoesNotExist}}(randn(), Zero())
 
  frule_test(SpecialFunctions.logabsgamma, (x, Δx))
  rrule_test(SpecialFunctions.logabsgamma, Δz, (x, x̄))

test/runtests.jl

@@ -5,6 +5,7 @@ using ChainRulesTestUtils
 using ChainRulesTestUtils: _fdm
 using Compat: only
 using FiniteDifferences
+using FiniteDifferences: rand_tangent
 using LinearAlgebra
 using LinearAlgebra.BLAS
 using LinearAlgebra: dot