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Remove tuples from ConstraintFeatures

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This commit is contained in:
Alinson S. Xavier
2021-05-20 10:23:53 -05:00
parent f9ac65bf9c
commit c494f3e804
9 changed files with 139 additions and 147 deletions
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62
miplearn/solvers/tests/__init__.py
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@@ -69,18 +69,18 @@ def run_basic_usage_tests(solver: InternalSolver) -> None:
assert_equals(
solver.get_constraints(),
ConstraintFeatures(
names=("eq_capacity",),
rhs=(0.0,),
lhs=(
(
names=["eq_capacity"],
rhs=[0.0],
lhs=[
[
("x[0]", 23.0),
("x[1]", 26.0),
("x[2]", 20.0),
("x[3]", 18.0),
("z", -1.0),
),
),
senses=("=",),
],
],
senses=["="],
),
)
@@ -120,12 +120,12 @@ def run_basic_usage_tests(solver: InternalSolver) -> None:
_filter_attrs(
solver.get_constraint_attrs(),
ConstraintFeatures(
basis_status=("N",),
dual_values=(13.538462,),
names=("eq_capacity",),
sa_rhs_down=(-24.0,),
sa_rhs_up=(2.0,),
slacks=(0.0,),
basis_status=["N"],
dual_values=[13.538462],
names=["eq_capacity"],
sa_rhs_down=[-24.0],
sa_rhs_up=[2.0],
slacks=[0.0],
),
),
)
@@ -165,20 +165,20 @@ def run_basic_usage_tests(solver: InternalSolver) -> None:
_filter_attrs(
solver.get_constraint_attrs(),
ConstraintFeatures(
names=("eq_capacity",),
slacks=(0.0,),
names=["eq_capacity"],
slacks=[0.0],
),
),
)
# Build new constraint and verify that it is violated
cf = ConstraintFeatures(
names=("cut",),
lhs=((("x[0]", 1.0),),),
rhs=(0.0,),
senses=("<",),
names=["cut"],
lhs=[[("x[0]", 1.0)]],
rhs=[0.0],
senses=["<"],
)
assert_equals(solver.are_constraints_satisfied(cf), (False,))
assert_equals(solver.are_constraints_satisfied(cf), [False])
# Add constraint and verify it affects solution
solver.add_constraints(cf)
@@ -187,28 +187,30 @@ def run_basic_usage_tests(solver: InternalSolver) -> None:
_filter_attrs(
solver.get_constraint_attrs(),
ConstraintFeatures(
names=("eq_capacity", "cut"),
rhs=(0.0, 0.0),
lhs=(
(
names=["eq_capacity", "cut"],
rhs=[0.0, 0.0],
lhs=[
[
("x[0]", 23.0),
("x[1]", 26.0),
("x[2]", 20.0),
("x[3]", 18.0),
("z", -1.0),
),
(("x[0]", 1.0),),
),
senses=("=", "<"),
],
[
("x[0]", 1.0),
],
],
senses=["=", "<"],
),
),
)
stats = solver.solve()
assert_equals(stats.mip_lower_bound, 1030.0)
assert_equals(solver.are_constraints_satisfied(cf), (True,))
assert_equals(solver.are_constraints_satisfied(cf), [True])
# Remove the new constraint
solver.remove_constraints(("cut",))
solver.remove_constraints(["cut"])
# New constraint should no longer affect solution
stats = solver.solve()