test(tests): added test suite
The test suite is extensive. Note that LLMs were used to aid in the development of the test suite. All LLM generated code was manually reviewed.
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199
tests/quadrature/policy.cpp
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199
tests/quadrature/policy.cpp
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// Ported from MeanField tests/quadrature/policy.cpp using the consolidated form/role API.
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#include <array>
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#include <cmath>
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#include <format>
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#include <stdexcept>
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#include <string>
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#include <catch2/catch_test_macros.hpp>
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#include <catch2/matchers/catch_matchers_floating_point.hpp>
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#include <mfem.hpp>
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#include "serif/backend/mfem/discretization/quadrature/mfem_resolver.hpp"
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#include "serif/tests/test_tags.hpp"
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namespace quadrature = serif::discretization::quadrature;
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namespace forms = serif::discretization::forms;
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namespace blocks = serif::discretization::blocks;
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using VectorMass = forms::mass<blocks::displacement::vector, blocks::displacement::vector>;
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using DensityMass = forms::mass<blocks::density::mass, blocks::density::mass>;
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TEST_CASE(
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"Quadrature Policy Computes Base Orders",
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tags::unit & tags::quadrature
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) {
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const quadrature::Policy policy{quadrature::RuleSet{}};
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quadrature::Query query{.form = forms::form_descriptor<VectorMass>};
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query.trial_order = 3;
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query.test_order = 3;
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query.coefficient_order = 2;
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query.geometry_weight_order = 1;
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CHECK(policy.resolve(query).base_order == 9);
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query.trial_order_reduction = 1;
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query.test_order_reduction = 2;
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CHECK(policy.resolve(query).base_order == 6);
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query.trial_order_reduction = 5;
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CHECK(policy.resolve(query).base_order == 4);
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query.base_order = 7;
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CHECK(policy.resolve(query).base_order == 7);
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}
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TEST_CASE(
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"Quadrature Policy Composes Global Role And Form Boosts",
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tags::unit & tags::quadrature
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) {
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quadrature::RuleSet rules;
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rules.set_fallback_control({.boost = 1});
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rules.set_role_control(quadrature::QuadratureRole::preconditioner, {.boost = 2});
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rules.set_form_control<VectorMass>({.boost = 3});
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const quadrature::Policy policy{rules};
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const quadrature::Query query{
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.form = forms::form_descriptor<VectorMass>, .role = quadrature::QuadratureRole::preconditioner, .base_order = 6
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};
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const auto result = policy.resolve(query);
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CHECK(result.base_order == 6);
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CHECK(result.boost == 6);
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CHECK(result.order == 12);
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CHECK_FALSE(result.used_fixed_order);
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CHECK(policy.resolve({.form = forms::form_descriptor<DensityMass>, .base_order = 4}).order == 5);
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}
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TEST_CASE(
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"Quadrature Fixed Orders Have Defined Precedence",
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tags::unit & tags::quadrature
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) {
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quadrature::RuleSet rules;
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const quadrature::Query query{.form = forms::form_descriptor<VectorMass>, .base_order = 6};
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rules.set_fallback_control({.fixed_order = 9, .boost = 100});
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CHECK(quadrature::Policy{rules}.resolve(query).order == 9);
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rules.set_role_control(quadrature::QuadratureRole::discretization, {.fixed_order = 11, .boost = 200});
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CHECK(quadrature::Policy{rules}.resolve(query).order == 11);
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rules.set_form_control<VectorMass>({.fixed_order = 13, .boost = 300});
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const auto result = quadrature::Policy{rules}.resolve(query);
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CHECK(result.order == 13);
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CHECK(result.used_fixed_order);
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CHECK(result.boost == 0);
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}
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TEST_CASE(
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"Quadrature Policy Rejects Invalid Orders",
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tags::unit & tags::quadrature
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) {
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const quadrature::Policy policy{quadrature::RuleSet{}};
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quadrature::Query query{.form = forms::form_descriptor<VectorMass>};
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query.base_order = -1;
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CHECK_THROWS_AS(policy.resolve(query), std::invalid_argument);
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query.base_order.reset();
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query.trial_order = -1;
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CHECK_THROWS_AS(policy.resolve(query), std::invalid_argument);
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query.trial_order = 1;
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query.test_order_reduction = -1;
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CHECK_THROWS_AS(policy.resolve(query), std::invalid_argument);
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quadrature::RuleSet rules;
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rules.set_form_control<VectorMass>({.fixed_order = -1});
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query.test_order_reduction = 0;
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CHECK_THROWS_AS(quadrature::Policy{rules}.resolve(query), std::invalid_argument);
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rules.set_form_control<VectorMass>({.boost = -2});
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CHECK_THROWS_AS(quadrature::Policy{rules}.resolve(query), std::invalid_argument);
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}
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TEST_CASE(
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"MFEM Rule Factory Includes Geometry And Dynamic Orders",
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tags::unit & tags::quadrature
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) {
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using namespace quadrature::backend::mfem;
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const MFEMResolver resolver{quadrature::Policy{quadrature::RuleSet{}}};
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const std::array dynamic_orders{2, 1};
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MFEMQuadratureContext context{
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.geometry = mfem::Geometry::CUBE, .geometry_weight_order = 1, .dynamic_orders = dynamic_orders
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};
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const auto rule = resolver.resolve<VectorMass>(context);
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CHECK(rule.resolution.base_order == 10);
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CHECK(rule.integration_rule == &mfem::IntRules.Get(mfem::Geometry::CUBE, 10));
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context.geometry_weight_order = -1;
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CHECK_THROWS_AS(resolver.resolve<VectorMass>(context), std::invalid_argument);
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context.geometry_weight_order = 0;
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const std::array invalid_orders{-1};
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context.dynamic_orders = invalid_orders;
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CHECK_THROWS_AS(resolver.resolve<VectorMass>(context), std::invalid_argument);
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}
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TEST_CASE(
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"MFEM Quadrature Rule Integrates Tensor Polynomial Exactly",
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tags::unit & tags::quadrature
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) {
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const quadrature::backend::mfem::MFEMResolver resolver{quadrature::Policy{quadrature::RuleSet{}}};
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const auto rule = resolver.resolve<VectorMass>({.geometry = mfem::Geometry::CUBE});
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double integral = 0.0;
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for (int i = 0; i < rule.integration_rule->GetNPoints(); ++i) {
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const auto& point = rule.integration_rule->IntPoint(i);
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integral += point.weight * std::pow(point.x, 4) * std::pow(point.y, 2) * point.z;
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}
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CHECK_THAT(integral, Catch::Matchers::WithinAbs(1.0 / 30.0, 1.0e-14));
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}
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TEST_CASE(
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"Policy Controlled Vector Mass Assembly Matches Overintegrated Reference",
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tags::unit & tags::quadrature
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) {
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auto mesh = mfem::Mesh::MakeCartesian3D(1, 1, 1, mfem::Element::HEXAHEDRON, 1.2, 0.9, 1.4);
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mfem::H1_FECollection collection(3, 3);
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mfem::FiniteElementSpace space(&mesh, &collection, 3);
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auto& transformation = *mesh.GetElementTransformation(0);
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const auto& element = *space.GetFE(0);
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const quadrature::backend::mfem::MFEMResolver resolver{quadrature::Policy{quadrature::RuleSet{}}};
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mfem::VectorMassIntegrator controlled;
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const auto resolution = resolver.configure<VectorMass>(
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controlled, {.geometry = element.GetGeomType(), .geometry_weight_order = transformation.OrderW()}
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);
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mfem::VectorMassIntegrator reference;
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reference.SetIntRule(&mfem::IntRules.Get(element.GetGeomType(), resolution.order + 8));
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mfem::DenseMatrix actual, expected;
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controlled.AssembleElementMatrix(element, transformation, actual);
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reference.AssembleElementMatrix(element, transformation, expected);
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actual -= expected;
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CHECK(actual.FNorm() / expected.FNorm() < 1.0e-12);
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}
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TEST_CASE(
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"Integration Rule Adapter Supports Each Advertised Signature",
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tags::unit & tags::quadrature
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) {
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struct ReferenceIntegrator {
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const mfem::IntegrationRule* selected = nullptr;
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void SetIntegrationRule(const mfem::IntegrationRule& rule) {
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selected = &rule;
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}
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} reference;
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struct PointerIntegrator {
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const mfem::IntegrationRule* selected = nullptr;
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void SetIntRule(const mfem::IntegrationRule* rule) {
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selected = rule;
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}
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} pointer;
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struct IntRuleReferenceIntegrator {
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const mfem::IntegrationRule* selected = nullptr;
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void SetIntRule(const mfem::IntegrationRule& rule) {
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selected = &rule;
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}
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} int_reference;
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const quadrature::backend::mfem::MFEMResolver resolver{quadrature::Policy{quadrature::RuleSet{}}};
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const quadrature::backend::mfem::MFEMQuadratureContext context{.geometry = mfem::Geometry::CUBE};
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resolver.configure<VectorMass>(reference, context);
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resolver.configure<VectorMass>(pointer, context);
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resolver.configure<VectorMass>(int_reference, context);
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CHECK(reference.selected == &mfem::IntRules.Get(mfem::Geometry::CUBE, 6));
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CHECK(pointer.selected == reference.selected);
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CHECK(int_reference.selected == reference.selected);
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}
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TEST_CASE(
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"Discrete Functional Space Can Be Formatted",
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tags::unit & tags::quadrature
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) {
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const blocks::displacement::vector::FunctionalSpace space;
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CHECK(std::format("{}", space).find("rank=Vector") != std::string::npos);
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}
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