Update runtests.jl

.github/julia/runtests.jl

@@ -22,7 +22,27 @@ function Optimizer(options = String["logger=INFO"])
     return AmplNLWriter.Optimizer(Uno_jll.amplexe, options)
 end
 
-Optimizer_LP() = Optimizer(["logger=INFO", "subproblem=LP"])
+function Optimizer_LP()
+    return Optimizer([
+        "LP_solver=HiGHS",
+        "TR_min_radius=1e-8",
+        "TR_radius=10",
+        "constraint_relaxation_strategy=feasibility_restoration",
+        "filter_type=standard",
+        "globalization_mechanism=TR",
+        "globalization_strategy=fletcher_filter_method",
+        "l1_constraint_violation_coefficient=1.",
+        "logger=INFO",
+        "loose_tolerance=1e-6",
+        "progress_norm=L1",
+        "protect_actual_reduction_against_roundoff=no",
+        "residual_norm=L2",
+        "sparse_format=CSC",
+        "subproblem=LP",
+        "switch_to_optimality_requires_linearized_feasibility=yes",
+        "tolerance=1e-6",
+    ])
+end
 
 # This testset runs https://github.com/jump-dev/MINLPTests.jl
 @testset "MINLPTests" begin