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test: make clock test robust to equation ordering #3587

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Apr 29, 2025
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test: make clock test robust to equation ordering #3587

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20 changes: 14 additions & 6 deletions test/clock.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -76,14 +76,22 @@ k = ShiftIndex(d)
[yd(k + 1) ~ Sample(dt)(y); r(k + 1) ~ 1.0;
ud(k + 1) ~ kp * (r(k + 1) - yd(k + 1))])

canonical_eqs = map(eqs) do eq
if iscall(eq.lhs) && operation(eq.lhs) isa Differential
return eq
else
return 0 ~ eq.rhs - eq.lhs
end
end
eqs_idxs = findfirst.(isequal.(canonical_eqs), (equations(ci.ts),))
d = Clock(dt)
# Note that TearingState reorders the equations
@test eqmap[1] == ContinuousClock()
@test eqmap[2] == d
@test eqmap[3] == d
@test eqmap[4] == d
@test eqmap[5] == ContinuousClock()
@test eqmap[6] == ContinuousClock()
@test eqmap[eqs_idxs[1]] == d
@test eqmap[eqs_idxs[2]] == d
@test eqmap[eqs_idxs[3]] == d
@test eqmap[eqs_idxs[4]] == ContinuousClock()
@test eqmap[eqs_idxs[5]] == ContinuousClock()
@test eqmap[eqs_idxs[6]] == ContinuousClock()

@test varmap[yd] == d
@test varmap[ud] == d
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