Import MatrixOperator from its owner in integrator tests (#4076)

ChrisRackauckas-Claude · ChrisRackauckas · web-flow · commit 6f22bee38b11 · 2026-08-01T11:03:03.000Z
The tests currently receive MatrixOperator through SciMLBase's accidental SciMLOperators reexport. Import it directly so the test files continue to run once that reexport is removed.

Co-authored-by: ChrisRackauckas-Claude &lt;accounts@chrisrackauckas.com&gt;
diff --git a/test/Integrators_I/ode_event_tests.jl b/test/Integrators_I/ode_event_tests.jl
@@ -3,6 +3,7 @@ using OrdinaryDiffEq,
     SparseArrays,
     LinearAlgebra
 using OrdinaryDiffEqLinear, OrdinaryDiffEqLowOrderRK, OrdinaryDiffEqRosenbrock
+using SciMLOperators: MatrixOperator
 
 f = function (u, p, t)
     return -u + sin(-t)
diff --git a/test/Integrators_I/step_limiter_test.jl b/test/Integrators_I/step_limiter_test.jl
@@ -11,6 +11,7 @@ using OrdinaryDiffEqAdamsBashforthMoulton
 using OrdinaryDiffEqExtrapolation
 using OrdinaryDiffEqFIRK: AdaptiveRadau, RadauIIA9, RadauIIA5, RadauIIA3
 using LinearAlgebra
+using SciMLOperators: MatrixOperator
 
 # define the counting variable
 const STEP_LIMITER_VAR = Ref(0)
