From 66b4c6ca2c04dc42afb5849af59e92742beedf1e Mon Sep 17 00:00:00 2001
From: Guillaume Dalle <22795598+gdalle@users.noreply.github.com>
Date: Fri, 23 Jan 2026 11:12:46 +0100
Subject: [PATCH 1/3] test: bypass failing Enzyme test until upstream fix

---
 .../test/Back/Enzyme/test.jl                  | 19 ++++++++++++++++++-
 1 file changed, 18 insertions(+), 1 deletion(-)

diff --git a/DifferentiationInterface/test/Back/Enzyme/test.jl b/DifferentiationInterface/test/Back/Enzyme/test.jl
index f80fc63c3..5cbc42376 100644
--- a/DifferentiationInterface/test/Back/Enzyme/test.jl
+++ b/DifferentiationInterface/test/Back/Enzyme/test.jl
@@ -63,9 +63,26 @@ end;
 end
 
 @testset "Second order" begin
+    test_differentiation(
+        AutoEnzyme(),
+        default_scenarios(; include_constantified = true, include_cachified = true);
+        excluded = vcat(FIRST_ORDER, :hvp, :hessian),
+        logging = LOGGING,
+    )
+
+    test_differentiation(
+        # TODO: replace with AutoEnzyme() when https://github.com/EnzymeAD/Enzyme.jl/issues/2854 is fixed
+        SecondOrder(
+            AutoEnzyme(; mode = Enzyme.set_runtime_activity(Enzyme.Forward)),
+            AutoEnzyme(; mode = Enzyme.set_runtime_activity(Enzyme.Reverse))
+        ),
+        default_scenarios(; include_constantified = true, include_cachified = true);
+        excluded = vcat(FIRST_ORDER, :second_derivative),
+        logging = LOGGING,
+    )
+
     test_differentiation(
         [
-            AutoEnzyme(),
             SecondOrder(
                 AutoEnzyme(; mode = Enzyme.Reverse), AutoEnzyme(; mode = Enzyme.Forward)
             ),

From abafa86b881720b33a0d2d4225675aa798b7b91c Mon Sep 17 00:00:00 2001
From: Guillaume Dalle <22795598+gdalle@users.noreply.github.com>
Date: Fri, 23 Jan 2026 11:15:56 +0100
Subject: [PATCH 2/3] Fix

---
 DifferentiationInterface/test/Back/Enzyme/test.jl | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/DifferentiationInterface/test/Back/Enzyme/test.jl b/DifferentiationInterface/test/Back/Enzyme/test.jl
index 5cbc42376..685046671 100644
--- a/DifferentiationInterface/test/Back/Enzyme/test.jl
+++ b/DifferentiationInterface/test/Back/Enzyme/test.jl
@@ -70,13 +70,20 @@ end
         logging = LOGGING,
     )
 
+    test_differentiation(
+        AutoEnzyme(),
+        default_scenarios(; include_constantified = true);
+        excluded = vcat(FIRST_ORDER, :second_derivative),
+        logging = LOGGING,
+    )
+
     test_differentiation(
         # TODO: replace with AutoEnzyme() when https://github.com/EnzymeAD/Enzyme.jl/issues/2854 is fixed
         SecondOrder(
             AutoEnzyme(; mode = Enzyme.set_runtime_activity(Enzyme.Forward)),
             AutoEnzyme(; mode = Enzyme.set_runtime_activity(Enzyme.Reverse))
         ),
-        default_scenarios(; include_constantified = true, include_cachified = true);
+        default_scenarios(; include_normal = false, include_constantified = false, include_cachified = true);
         excluded = vcat(FIRST_ORDER, :second_derivative),
         logging = LOGGING,
     )

From 872a25216d9021334c40463d52705a5e998fc0d4 Mon Sep 17 00:00:00 2001
From: Guillaume Dalle <22795598+gdalle@users.noreply.github.com>
Date: Sat, 24 Jan 2026 16:38:29 +0100
Subject: [PATCH 3/3] Fix runtime activity

---
 DifferentiationInterface/test/Back/Enzyme/test.jl | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/DifferentiationInterface/test/Back/Enzyme/test.jl b/DifferentiationInterface/test/Back/Enzyme/test.jl
index 685046671..d43019d43 100644
--- a/DifferentiationInterface/test/Back/Enzyme/test.jl
+++ b/DifferentiationInterface/test/Back/Enzyme/test.jl
@@ -78,11 +78,15 @@ end
     )
 
     test_differentiation(
-        # TODO: replace with AutoEnzyme() when https://github.com/EnzymeAD/Enzyme.jl/issues/2854 is fixed
-        SecondOrder(
-            AutoEnzyme(; mode = Enzyme.set_runtime_activity(Enzyme.Forward)),
-            AutoEnzyme(; mode = Enzyme.set_runtime_activity(Enzyme.Reverse))
-        ),
+        # TODO: simplify when https://github.com/EnzymeAD/Enzyme.jl/issues/2854 and https://github.com/EnzymeAD/Enzyme.jl/issues/2925 are fixed
+        if VERSION >= v"1.11"
+            SecondOrder(
+                AutoEnzyme(; mode = Enzyme.set_runtime_activity(Enzyme.Forward)),
+                AutoEnzyme(; mode = Enzyme.set_runtime_activity(Enzyme.Reverse))
+            )
+        else
+            AutoEnzyme()
+        end,
         default_scenarios(; include_normal = false, include_constantified = false, include_cachified = true);
         excluded = vcat(FIRST_ORDER, :second_derivative),
         logging = LOGGING,