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Add tests for issue #3736 #3737

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merged 5 commits into from
Apr 25, 2024
Merged

Add tests for issue #3736 #3737

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1138c47
Add tests for issue #3736
odow Apr 24, 2024
a2bedfd
Add methods
odow Apr 24, 2024
e03e3f8
Update
odow Apr 24, 2024
3cdd27b
Update operators.jl
odow Apr 24, 2024
04f0fc9
Update operators.jl
odow Apr 24, 2024
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33 changes: 33 additions & 0 deletions test/test_expr.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -519,4 +519,37 @@ function test_aff_expr_complex_HermitianPSDCone()
return
end

function test_multiply_expr_MA_Zero()
model = Model()
@variable(model, x)
for f in (x, x^2, sin(x))
@test @expression(model, f * sum(x for i in 1:0)) == 0.0
@test @expression(model, sum(x for i in 1:0) * f) == 0.0
@test @expression(model, -f * sum(x for i in 1:0)) == 0.0
@test @expression(model, sum(x for i in 1:0) * -f) == 0.0
@test @expression(model, (f + f) * sum(x for i in 1:0)) == 0.0
@test @expression(model, sum(x for i in 1:0) * (f + f)) == 0.0

@test isequal_canonical(@expression(model, f + sum(x for i in 1:0)), f)
@test isequal_canonical(@expression(model, sum(x for i in 1:0) + f), f)
@test isequal_canonical(
@expression(model, -f + sum(x for i in 1:0)),
-1.0 * f, # Needed for f = sin(x)
)
@test isequal_canonical(
@expression(model, sum(x for i in 1:0) + -f),
-1.0 * f, # Needed for f = sin(x)
)
@test isequal_canonical(
@expression(model, (f + f) + sum(x for i in 1:0)),
f + f,
)
@test isequal_canonical(
@expression(model, sum(x for i in 1:0) + (f + f)),
f + f,
)
end
return
end

end # TestExpr
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