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BUG: small patch to _VarArray while inputting a matrix with length > 1 #1060

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Merged
merged 3 commits into from
Oct 9, 2025
Merged

BUG: small patch to _VarArray while inputting a matrix with length > 1 #1060

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36e9066
Fix _VarArray size initialization logic
Zeroto521 Aug 20, 2025
23d4344
Add test for knapsack constraint with matrix variables
Zeroto521 Aug 20, 2025
b55445d
Merge branch 'master' into fix/1043
Joao-Dionisio Oct 9, 2025
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Add test for knapsack constraint with matrix variables
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@Zeroto521
Zeroto521 committed Aug 20, 2025
commit 23d4344278040df0ed0e64b20900838c65537141
11 changes: 11 additions & 0 deletions tests/test_cons.py
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Expand Up @@ -210,6 +210,17 @@ def test_cons_indicator_with_matrix_binvar():

assert m.isEQ(m.getVal(x), 1)

def test_cons_knapsack_with_matrix_vars():
# test matrix variable vars #1043
m = Model()
vars = m.addMatrixVar(3, vtype="B")
m.addConsKnapsack(vars, [1, 2, 3], 5)

m.setObjective(vars.sum(), "maximize")
m.optimize()

assert (m.getVal(vars) == [0, 1, 1]).all()

@pytest.mark.xfail(
reason="addConsIndicator doesn't behave as expected when binary variable is False. See Issue #717."
)
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