test: fix preference setting

MilesCranmer · MilesCranmer · commit 5c7ae3db5f43 · 2024-06-04T01:37:54.000+01:00
diff --git a/test/Project.toml b/test/Project.toml
@@ -10,6 +10,7 @@ JET = "c3a54625-cd67-489e-a8e7-0a5a0ff4e31b"
 LinearAlgebra = "37e2e46d-f89d-539d-b4ee-838fcccc9c8e"
 LoopVectorization = "bdcacae8-1622-11e9-2a5c-532679323890"
 Optim = "429524aa-4258-5aef-a3af-852621145aeb"
+Preferences = "21216c6a-2e73-6563-6e65-726566657250"
 Random = "9a3f8284-a2c9-5f02-9a11-845980a1fd5c"
 SafeTestsets = "1bc83da4-3b8d-516f-aca4-4fe02f6d838f"
 SpecialFunctions = "276daf66-3868-5448-9aa4-cd146d93841b"
diff --git a/test/runtests.jl b/test/runtests.jl
@@ -10,8 +10,10 @@ if test_name == "enzyme"
     end
 elseif test_name == "jet"
     @safetestset "JET" begin
-        using DynamicExpressions
+        using Preferences
+        set_preferences!("DynamicExpressions", "instability_check" => "disable")
         using JET
+        using DynamicExpressions
         if VERSION >= v"1.10"
             JET.test_package(DynamicExpressions; target_defined_modules=true)
         end
