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Test transformations #217

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merged 6 commits into from
Oct 15, 2024
Merged

Test transformations #217

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cf69d3b
Fix previous ContractSimplification transformation tests
HerManNav Oct 1, 2024
6fb87fe
Add tests for options (non-recursive and for rank heuristic)
HerManNav Oct 8, 2024
ca2eb3f
Improve some test and add comments
HerManNav Oct 8, 2024
751a959
Apply format for CI
HerManNav Oct 9, 2024
88b6ccb
Add Sergio's suggested changes for PR
HerManNav Oct 10, 2024
15e46ac
Remove rank definition
HerManNav Oct 15, 2024
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25 changes: 21 additions & 4 deletions test/Transformations_test.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -138,8 +138,6 @@
end

@testset "ContractSimplification" begin
# TODO test `ContractSimplification` options

using Tenet: ContractSimplification

# create a tensor network where tensors B and D can be absorbed
Expand All @@ -154,13 +152,32 @@

# Test that the resulting tn contains no tensors with larger rank than the original
rank = length ∘ size ∘ parent
@test max(rank(tensors(reduced)) == max(rank(tensors(tn))))
@test maximum(ndims, tensors(reduced)) <= maximum(ndims, tensors(tn))
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Remove the rank definition and it should be done


# Test that the resulting tn contains <= tensors than the original
@test length(tensors(reduced)) == 1
@test Tenet.ntensors(reduced) <= Tenet.ntensors(tn)

# Test that the resulting contraction contains the same as the original
@test contract(reduced) ≈ contract(tn)

# Options (for non-recursive)
# Test that a non-recursive contraction is an intermediate simplification
reduced_nonrecursive = transform(tn, ContractSimplification(:length, false))
@test Tenet.ntensors(tn) > Tenet.ntensors(reduced_nonrecursive) > Tenet.ntensors(reduced)

# 2nd-stage simplification result in full simplification for this TN
reduced_full = transform(reduced_nonrecursive, ContractSimplification(:length, false))
@test Tenet.ntensors(reduced) == Tenet.ntensors(reduced_full)

@test contract(reduced) ≈ contract(tn)

# Options (minimization by rank)
# Test that the resulting tn contains no tensors with larger rank than the original
reduced_byrank = transform(tn, ContractSimplification(:rank, true))
@test maximum(ndims, tensors(reduced_byrank)) <= maximum(ndims, tensors(tn))

# Test that the resulting number of tensors is bigger for a reduction by rank than for length
@test Tenet.ntensors(reduced_byrank) > Tenet.ntensors(reduced)
end

@testset "AntiDiagonalGauging" begin
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