@@ -146,6 +146,38 @@ reading and writing faster.")
sensitivities for functions without the need to depend on ChainRules itself.")
(license license:expat)))
+(define-public julia-chainrulestestutils
+ (package
+ (name "julia-chainrulestestutils")
+ (version "0.6.4")
+ (source
+ (origin
+ (method git-fetch)
+ (uri (git-reference
+ (url "https://github.com/JuliaDiff/ChainRulesTestUtils.jl")
+ (commit (string-append "v" version))))
+ (file-name (git-file-name name version))
+ (sha256
+ (base32 "1pzs947adnb3cx1qd0cxp2fidk9szz0zsqbas90z1lhydykkvkil"))))
+ (build-system julia-build-system)
+ (propagated-inputs
+ `(("julia-chainrulescore" ,julia-chainrulescore)
+ ("julia-compat" ,julia-compat)
+ ("julia-finitedifference" ,julia-finitedifferences)))
+ (home-page "https://github.com/JuliaDiff/ChainRulesTestUtils.jl")
+ (synopsis "Common utilities used by downstream automatic differentiation tools")
+ (description "This package is designed to help in testing
+@code{ChainRulesCore.frule} and @code{ChainRulesCore.rrule} methods. The main
+entry points are @code{ChainRulesTestUtils.frule_test},
+@code{ChainRulesTestUtils.rrule_test}, and
+@code{ChainRulesTestUtils.test_scalar}. Currently this is done via testing the
+rules against numerical differentiation (using @code{FiniteDifferences.jl}).
+
+@code{ChainRulesTestUtils.jl} is separated from @code{ChainRulesCore.jl} so that it
+can be a test-only dependency, allowing it to have potentially heavy
+dependencies, while keeping @code{ChainRulesCore.jl} as light-weight as possible.")
+ (license license:expat)))
+
(define-public julia-colors
(package
(name "julia-colors")