use printing every testset to stop travis getting made

.travis.yml

@@ -15,20 +15,14 @@ git:
 matrix:
  allow_failures:
  - julia: nightly
-
-jobs:
-  include:
+ include:
     - stage: "Documentation"
       julia: 1.3
       os: linux
       script:
         - julia --color=yes --project=docs/ docs/make.jl
       after_success: skip
 
-script:
-  - if [[ -a .git/shallow ]]; then git fetch --unshallow; fi
-  - travis_wait 30 julia -e 'using Pkg; Pkg.build(); Pkg.test(coverage=true)'
-
 ## uncomment and modify the following lines to manually install system packages
 #addons:
 #  apt: # apt-get for linux

test/gradcheck.jl

@@ -24,7 +24,6 @@ function default_fdm(f::F) where F
 end
 
 function ngradient(f, xs::AbstractArray...; fdm=default_fdm(f))
-    println(" ")  # make sure TravisCI doesn't time out
     return FiniteDifferences.grad(fdm, f, xs...)
 end
 

test/runtests.jl

@@ -1,6 +1,12 @@
 using Zygote, Test
 using Zygote: gradient
 
+# Shadow Test.@testset to always print something so that TravisCI doesn't shut-down for inactivity.
+macro testset(expr...)
+  :(print(" "); Base.@testset $(expr...);)
+end
+
+
 @testset "Zygote" begin
 
 @info "Testing compiler features"