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30 lines
1.1 KiB
30 lines
1.1 KiB
# MIPLearn: Extensible Framework for Learning-Enhanced Mixed-Integer Optimization
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# Copyright (C) 2020-2021, UChicago Argonne, LLC. All rights reserved.
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# Released under the modified BSD license. See COPYING.md for more details.
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using MIPLearn
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@testset "JuMPInstance" begin
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@testset "Save and load" begin
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# Build instance and solve
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model = model = build_knapsack_model()
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instance = JuMPInstance(model)
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solver = LearningSolver(Gurobi.Optimizer)
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stats = solve!(solver, instance)
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@test length(instance.py.samples) == 1
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# Save model to file
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filename = tempname()
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save(filename, instance)
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@test isfile(filename)
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# Read model from file
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loaded = load_jump_instance(filename)
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x = variable_by_name(loaded.model, "x")
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@test loaded.model.ext[:miplearn][:variable_features][x] == [1.0]
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@test loaded.model.ext[:miplearn][:variable_categories][x] == "cat1"
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@test loaded.model.ext[:miplearn][:instance_features] == [5.0]
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@test length(loaded.py.samples) == 1
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end
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end |