Don't test Mooncake on 1.12

Author: penelopeysm

test/Project.toml

@@ -19,7 +19,6 @@ LinearAlgebra = "37e2e46d-f89d-539d-b4ee-838fcccc9c8e"
 LogDensityProblems = "6fdf6af0-433a-55f7-b3ed-c6c6e0b8df7c"
 MCMCChains = "c7f686f2-ff18-58e9-bc7b-31028e88f75d"
 MacroTools = "1914dd2f-81c6-5fcd-8719-6d5c9610ff09"
-Mooncake = "da2b9cff-9c12-43a0-ae48-6db2b0edb7d6"
 OrderedCollections = "bac558e1-5e72-5ebc-8fee-abe8a469f55d"
 Pkg = "44cfe95a-1eb2-52ea-b672-e2afdf69b78f"
 Random = "9a3f8284-a2c9-5f02-9a11-845980a1fd5c"

test/ad.jl

@@ -3,11 +3,11 @@ using DynamicPPL: LogDensityFunction
 @testset "Automatic differentiation" begin
     # Used as the ground truth that others are compared against.
     ref_adtype = AutoForwardDiff()
-    test_adtypes = [
-        AutoReverseDiff(; compile=false),
-        AutoReverseDiff(; compile=true),
-        AutoMooncake(; config=nothing),
-    ]
+    test_adtypes = [AutoReverseDiff(; compile=false), AutoReverseDiff(; compile=true)]
+
+    if USE_MOONCAKE
+        push!(test_adtypes, AutoMooncake(; config=nothing))
+    end
 
     @testset "Unsupported backends" begin
         @model demo() = x ~ Normal()
@@ -16,7 +16,7 @@ using DynamicPPL: LogDensityFunction
         )
     end
 
-    @testset "Correctness: ForwardDiff, ReverseDiff, and Mooncake" begin
+    @testset "Correctness" begin
         @testset "$(m.f)" for m in DynamicPPL.TestUtils.DEMO_MODELS
             rand_param_values = DynamicPPL.TestUtils.rand_prior_true(m)
             vns = DynamicPPL.TestUtils.varnames(m)

test/runtests.jl

@@ -40,6 +40,13 @@ Random.seed!(100)
 
 include("test_util.jl")
 
+# Don't attempt to import Mooncake on 1.12
+USE_MOONCAKE = VERSION >= v"1.12"
+
+if USE_MOONCAKE
+    Pkg.add("Mooncake")
+end
+
 @testset verbose = true "DynamicPPL.jl" begin
     # The tests are split into two groups so that CI can run in parallel. The
     # groups are chosen to make both groups take roughly the same amount of
@@ -80,7 +87,9 @@ include("test_util.jl")
         end
         @testset "ad" begin
             include("ext/DynamicPPLForwardDiffExt.jl")
-            include("ext/DynamicPPLMooncakeExt.jl")
+            if USE_MOONCAKE
+                include("ext/DynamicPPLMooncakeExt.jl")
+            end
             include("ad.jl")
         end
         @testset "prob and logprob macro" begin