relation_types.test.cpp

Go to the documentation of this file.

#include "relation_types.hpp"
#include "barretenberg/common/tuple.hpp"
#include "barretenberg/flavor/flavor.hpp"
 
#include <gtest/gtest.h>
 
using namespace bb;
 
TEST(RelationTypes, CreateSumcheckTupleOfTuplesOfUnivariates)
{
    using FF = fr;
 
    struct Relation1 {
        using SumcheckTupleOfUnivariatesOverSubrelations =
            TupleOfUnivariates<FF, /*SUBRELATION_PARTIAL_LENGTHS=*/std::array<size_t, 1>{ 3 }>;
    };
    struct Relation2 {
        using SumcheckTupleOfUnivariatesOverSubrelations =
            TupleOfUnivariates<FF, /*SUBRELATION_PARTIAL_LENGTHS=*/std::array<size_t, 2>{ 2, 5 }>;
    };
    using RelationsTuple = flat_tuple::tuple<Relation1, Relation2>;
    auto tuple_of_tuples = create_sumcheck_tuple_of_tuples_of_univariates<RelationsTuple>();
 
    Univariate<FF, 3> expected_zero_1({ 0, 0, 0 });
    Univariate<FF, 2> expected_zero_2({ 0, 0 });
    Univariate<FF, 5> expected_zero_3({ 0, 0, 0, 0, 0 });
    EXPECT_EQ(std::get<0>(std::get<0>(tuple_of_tuples)), expected_zero_1);
    EXPECT_EQ(std::get<0>(std::get<1>(tuple_of_tuples)), expected_zero_2);
    EXPECT_EQ(std::get<1>(std::get<1>(tuple_of_tuples)), expected_zero_3);
 
    // Now test it when creating it from the type.
    using SumcheckTupleOfTuplesOfUnivariates =
        decltype(create_sumcheck_tuple_of_tuples_of_univariates<RelationsTuple>());
    // Note: {} is required to initialize the tuple contents. Otherwise the univariates contain garbage.
    SumcheckTupleOfTuplesOfUnivariates tuple_of_tuples_from_type{};
 
    EXPECT_EQ(std::get<0>(std::get<0>(tuple_of_tuples_from_type)), expected_zero_1);
    EXPECT_EQ(std::get<0>(std::get<1>(tuple_of_tuples_from_type)), expected_zero_2);
    EXPECT_EQ(std::get<1>(std::get<1>(tuple_of_tuples_from_type)), expected_zero_3);
}
 
// This class needs to be outside the test because of the templated skip.
struct RelationWithTemplatedSkip {
    struct AllEntities {
        int input;
    };
    template <typename Entities> static bool skip(const Entities&) { return false; }
};
 
TEST(RelationTypes, IsSkippableConcept)
{
    // Works with a non-templated skip function.
    struct Relation1 {
        struct AllEntities {
            int input;
        };
        static bool skip(const AllEntities&) { return false; }
    };
    static_assert(isSkippable<Relation1, Relation1::AllEntities>);
 
    // Works with a templated skip function.
    static_assert(isSkippable<RelationWithTemplatedSkip, RelationWithTemplatedSkip::AllEntities>);
 
    // False when the skip function is not there.
    struct Relation2 {
        struct AllEntities {
            int input;
        };
    };
    static_assert(!isSkippable<Relation2, Relation2::AllEntities>);
 
    struct Relation3 {};
}