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Add a test that failed in MathOptAnalyzer #38

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Merged
odow merged 1 commit into from
Apr 13, 2026
+28 −0
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Add a test that failed in MathOptAnalyzer #38

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28 changes: 28 additions & 0 deletions test/runtests.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -555,6 +555,34 @@ function test_iis_spare()
return
end

function test_iis_spare_scs()
model = Model(SCS.Optimizer)
set_silent(model)
@variable(model, 0 <= x <= 10)
@variable(model, 0 <= y <= 20)
@variable(model, 0 <= z <= 20)
@constraint(model, c0, 2z <= 1)
@constraint(model, c00, 3z <= 1)
@constraint(model, c1, x + y <= 1)
@constraint(model, c2, x + y >= 2)
@objective(model, Max, x + y)
optimize!(model)
solver = MathOptIIS.Optimizer()
MOI.set(solver, MathOptIIS.InfeasibleModel(), backend(model))
MOI.set(solver, MathOptIIS.InnerOptimizer(), HiGHS.Optimizer)
MOI.compute_conflict!(solver)
data = solver.results
@test length(data) == 1
@test data[1].metadata === nothing
@test _isequal_unordered(data[].constraints, [index(c2), index(c1)])
result = Dict(c1 => MOI.IN_CONFLICT, c2 => MOI.IN_CONFLICT)
for ci in all_constraints(model; include_variable_in_set_constraints = true)
@test MOI.get(solver, MOI.ConstraintConflictStatus(), index(ci)) ==
get(result, ci, MOI.NOT_IN_CONFLICT)
end
return
end

function test_iis_binary()
model = Model(HiGHS.Optimizer)
set_silent(model)
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