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fix: Fix Translator composer test instability #4751

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Merged
Rumata888 merged 3 commits into from
Feb 25, 2024
Merged

fix: Fix Translator composer test instability #4751

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6dccf3d
Add assert to detect PI in transcript and fix Goblin Translator Compo…
Rumata888 Feb 25, 2024
b35644d
Remove point at infinity detection
Rumata888 Feb 25, 2024
c58445e
Address Mara's comments
Rumata888 Feb 25, 2024
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12 changes: 12 additions & 0 deletions barretenberg/cpp/src/barretenberg/translator_vm/goblin_translator_composer.test.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -49,12 +49,24 @@ TEST_F(GoblinTranslatorComposerTests, Basic)
using Fr = fr;
using Fq = fq;

// Add an element and scalar the accumulation of which leaves no Point-at-Infinity commitments
const auto x = uint256_t(0xd3c208c16d87cfd3, 0xd97816a916871ca8, 0x9b85045b68181585, 0x30644e72e131a02);
const auto y = uint256_t(0x3ce1cc9c7e645a83, 0x2edac647851e3ac5, 0xd0cbe61fced2bc53, 0x1a76dae6d3272396);
auto padding_element = G1(x, y);
auto padding_scalar = -Fr::one();

auto P1 = G1::random_element();
auto P2 = G1::random_element();
auto z = Fr::random_element();

// Add the same operations to the ECC op queue; the native computation is performed under the hood.
auto op_queue = std::make_shared<bb::ECCOpQueue>();

// Accumulate padding so that we don't produce Point-at-Infinity commitments. Currently our transcript can't handle
// them
op_queue->mul_accumulate(padding_element, padding_scalar);

// Push everything else
for (size_t i = 0; i < 500; i++) {
op_queue->add_accumulate(P1);
op_queue->mul_accumulate(P2, z);
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