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Add unbounded example from Clp#60 #773

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Merged
merged 1 commit into from
Jun 19, 2019
Merged

Add unbounded example from Clp#60 #773

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16 changes: 16 additions & 0 deletions src/Test/UnitTests/solve.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -79,3 +79,19 @@ function solve_objbound_edge_cases(model::MOI.ModelLike, config::TestConfig)
end
end
unittests["solve_objbound_edge_cases"] = solve_objbound_edge_cases

function solve_unbounded_model(model::MOI.ModelLike, config::TestConfig)
MOI.empty!(model)
x = MOI.add_variables(model, 5)
MOI.set(
model,
MOI.ObjectiveFunction{MOI.ScalarAffineFunction{Float64}}(),
MOI.ScalarAffineFunction(MOI.ScalarAffineTerm.(1.0, x), 0.0)
)
MOI.set(model, MOI.ObjectiveSense(), MOI.MIN_SENSE)
if config.solve
MOI.optimize!(model)
@test MOI.get(model, MOI.TerminationStatus()) == MOI.DUAL_INFEASIBLE
end
end
unittests["solve_unbounded_model"] = solve_unbounded_model
12 changes: 11 additions & 1 deletion test/Test/unit.jl
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Expand Up @@ -41,7 +41,8 @@ end
"solve_time",
"solve_zero_one_with_bounds_1",
"solve_zero_one_with_bounds_2",
"solve_zero_one_with_bounds_3"
"solve_zero_one_with_bounds_3",
"solve_unbounded_model"
])
MOI.empty!(model)
end
Expand Down Expand Up @@ -329,6 +330,15 @@ end
MOIT.solve_zero_one_with_bounds_2(mock, config)
MOIT.solve_zero_one_with_bounds_3(mock, config)
end

@testset "solve_unbounded_model" begin
MOIU.set_mock_optimize!(mock,
(mock::MOIU.MockOptimizer) -> begin
MOIU.mock_optimize!(mock, MOI.DUAL_INFEASIBLE)
end
)
MOIT.solve_unbounded_model(mock, config)
end
end

@testset "modifications" begin
Expand Down