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GurobiSolver: Implement relax/enforce constraint

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This commit is contained in:
Alinson S. Xavier
2021-04-15 15:22:12 -05:00
parent 4dd4ef52bd
commit 0ba8cc16fd
7 changed files with 96 additions and 16 deletions
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8
tests/components/test_static_lazy.py
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@@ -86,7 +86,7 @@ def test_usage_with_solver(instance: Instance) -> None:
solver.gap_tolerance = 1e-4
internal = solver.internal_solver = Mock(spec=InternalSolver)
internal.is_constraint_satisfied = Mock(return_value=False)
internal.is_constraint_satisfied_old = Mock(return_value=False)
component = StaticLazyConstraintsComponent(violation_tolerance=1.0)
component.thresholds["type-a"] = MinProbabilityThreshold([0.5, 0.5])
@@ -144,8 +144,8 @@ def test_usage_with_solver(instance: Instance) -> None:
# Should ask internal solver to verify if constraints in the pool are
# satisfied and add the ones that are not
c3 = sample.after_load.constraints_old["c3"]
internal.is_constraint_satisfied.assert_called_once_with(c3, tol=1.0)
internal.is_constraint_satisfied.reset_mock()
internal.is_constraint_satisfied_old.assert_called_once_with(c3, tol=1.0)
internal.is_constraint_satisfied_old.reset_mock()
internal.add_constraint.assert_called_once_with(c3, name="c3")
internal.add_constraint.reset_mock()
@@ -154,7 +154,7 @@ def test_usage_with_solver(instance: Instance) -> None:
assert not should_repeat
# The lazy constraint pool should be empty by now, so no calls should be made
internal.is_constraint_satisfied.assert_not_called()
internal.is_constraint_satisfied_old.assert_not_called()
internal.add_constraint.assert_not_called()
# LearningSolver calls after_solve_mip