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muSpectre/tests/libmugrid/header_test_fields.cc
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header_test_fields.cc
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/**
* @file header_test_fields.cc
*
* @author Till Junge <till.junge@altermail.ch>
*
* @date 20 Sep 2017
*
* @brief Test Fields that are used in FieldCollections
*
* Copyright © 2017 Till Junge
*
* µSpectre is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation, either version 3, or (at
* your option) any later version.
*
* µSpectre is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with µSpectre; see the file COPYING. If not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* * Boston, MA 02111-1307, USA.
*
* Additional permission under GNU GPL version 3 section 7
*
* If you modify this Program, or any covered work, by linking or combining it
* with proprietary FFT implementations or numerical libraries, containing parts
* covered by the terms of those libraries' licenses, the licensors of this
* Program grant you additional permission to convey the resulting work.
*/
#include "tests.hh"
#include <libmugrid/field_collection.hh>
#include <libmugrid/field.hh>
#include <libmugrid/ccoord_operations.hh>
#include <boost/mpl/list.hpp>
#include <type_traits>
namespace muGrid {
BOOST_AUTO_TEST_SUITE(field_test);
template <bool Global>
struct FieldFixture {
constexpr static bool IsGlobal{Global};
constexpr static Dim_t Order{secondOrder};
constexpr static Dim_t SDim{twoD};
constexpr static Dim_t MDim{threeD};
constexpr static Dim_t NbComponents{ipow(MDim, Order)};
using FieldColl_t = std::conditional_t<Global, GlobalFieldCollection<SDim>,
LocalFieldCollection<SDim>>;
using TField_t = TensorField<FieldColl_t, Real, Order, MDim>;
using MField_t = MatrixField<FieldColl_t, Real, SDim, MDim>;
using DField_t = TypedField<FieldColl_t, Real>;
FieldFixture()
: tensor_field{make_field<TField_t>("TensorField", this->fc)},
matrix_field{make_field<MField_t>("MatrixField", this->fc)},
dynamic_field1{make_field<DField_t>(
"Dynamically sized field with correct number of"
" components",
this->fc, ipow(MDim, Order))},
dynamic_field2{make_field<DField_t>(
"Dynamically sized field with incorrect number"
" of components",
this->fc, NbComponents + 1)} {}
~FieldFixture() = default;
FieldColl_t fc{};
TField_t & tensor_field;
MField_t & matrix_field;
DField_t & dynamic_field1;
DField_t & dynamic_field2;
};
using field_fixtures =
boost::mpl::list<FieldFixture<true>, FieldFixture<false>>;
/* ---------------------------------------------------------------------- */
BOOST_FIXTURE_TEST_CASE(size_check_global, FieldFixture<true>) {
// check that fields are initialised with empty vector
BOOST_CHECK_EQUAL(tensor_field.size(), 0);
BOOST_CHECK_EQUAL(dynamic_field1.size(), 0);
BOOST_CHECK_EQUAL(dynamic_field2.size(), 0);
// check that returned size is correct
Dim_t len{2};
auto sizes{CcoordOps::get_cube<SDim>(len)};
fc.initialise(sizes, {});
auto nb_pixels{CcoordOps::get_size(sizes)};
BOOST_CHECK_EQUAL(tensor_field.size(), nb_pixels);
BOOST_CHECK_EQUAL(dynamic_field1.size(), nb_pixels);
BOOST_CHECK_EQUAL(dynamic_field2.size(), nb_pixels);
constexpr Dim_t pad_size{3};
tensor_field.set_pad_size(pad_size);
dynamic_field1.set_pad_size(pad_size);
dynamic_field2.set_pad_size(pad_size);
// check that setting pad size won't change logical size
BOOST_CHECK_EQUAL(tensor_field.size(), nb_pixels);
BOOST_CHECK_EQUAL(dynamic_field1.size(), nb_pixels);
BOOST_CHECK_EQUAL(dynamic_field2.size(), nb_pixels);
}
/* ---------------------------------------------------------------------- */
BOOST_FIXTURE_TEST_CASE(size_check_local, FieldFixture<false>) {
// check that fields are initialised with empty vector
BOOST_CHECK_EQUAL(tensor_field.size(), 0);
BOOST_CHECK_EQUAL(dynamic_field1.size(), 0);
BOOST_CHECK_EQUAL(dynamic_field2.size(), 0);
// check that returned size is correct
Dim_t nb_pixels{3};
Eigen::Array<Real, NbComponents, 1> new_elem;
Eigen::Array<Real, 1, NbComponents> wrong_elem;
for (Dim_t i{0}; i < NbComponents; ++i) {
new_elem(i) = i;
wrong_elem(i) = .1 * i;
}
for (Dim_t i{0}; i < nb_pixels; ++i) {
tensor_field.push_back(new_elem);
dynamic_field1.push_back(new_elem);
BOOST_CHECK_THROW(dynamic_field1.push_back(wrong_elem), FieldError);
BOOST_CHECK_THROW(dynamic_field2.push_back(new_elem), FieldError);
}
BOOST_CHECK_EQUAL(tensor_field.size(), nb_pixels);
BOOST_CHECK_EQUAL(dynamic_field1.size(), nb_pixels);
BOOST_CHECK_EQUAL(dynamic_field2.size(), 0);
for (Dim_t i{0}; i < nb_pixels; ++i) {
fc.add_pixel({i});
}
fc.initialise();
BOOST_CHECK_EQUAL(tensor_field.size(), nb_pixels);
BOOST_CHECK_EQUAL(dynamic_field1.size(), nb_pixels);
BOOST_CHECK_EQUAL(dynamic_field2.size(), nb_pixels);
BOOST_CHECK_EQUAL(tensor_field.get_pad_size(), 0);
BOOST_CHECK_EQUAL(dynamic_field1.get_pad_size(), 0);
BOOST_CHECK_EQUAL(dynamic_field2.get_pad_size(), 0);
constexpr Dim_t pad_size{3};
tensor_field.set_pad_size(pad_size);
dynamic_field1.set_pad_size(pad_size);
dynamic_field2.set_pad_size(pad_size);
BOOST_CHECK_EQUAL(tensor_field.get_pad_size(), pad_size);
BOOST_CHECK_EQUAL(dynamic_field1.get_pad_size(), pad_size);
BOOST_CHECK_EQUAL(dynamic_field2.get_pad_size(), pad_size);
// check that setting pad size won't change logical size
BOOST_CHECK_EQUAL(tensor_field.size(), nb_pixels);
BOOST_CHECK_EQUAL(dynamic_field1.size(), nb_pixels);
BOOST_CHECK_EQUAL(dynamic_field2.size(), nb_pixels);
}
BOOST_AUTO_TEST_CASE(simple_creation) {
constexpr Dim_t sdim{twoD};
constexpr Dim_t mdim{twoD};
constexpr Dim_t order{fourthOrder};
using FC_t = GlobalFieldCollection<sdim>;
FC_t fc;
using TF_t = TensorField<FC_t, Real, order, mdim>;
auto & field{make_field<TF_t>("TensorField 1", fc)};
// check that fields are initialised with empty vector
BOOST_CHECK_EQUAL(field.size(), 0);
Dim_t len{2};
fc.initialise(CcoordOps::get_cube<sdim>(len), {});
// check that returned size is correct
BOOST_CHECK_EQUAL(field.size(), ipow(len, sdim));
// check that setting pad size won't change logical size
field.set_pad_size(24);
BOOST_CHECK_EQUAL(field.size(), ipow(len, sdim));
}
BOOST_AUTO_TEST_CASE(dynamic_field_creation) {
constexpr Dim_t sdim{threeD};
Dim_t nb_components{2};
using FC_t = GlobalFieldCollection<sdim>;
FC_t fc{};
make_field<TypedField<FC_t, Real>>("Dynamic Field", fc, nb_components);
}
BOOST_FIXTURE_TEST_CASE_TEMPLATE(get_zeros_like, Fix, field_fixtures, Fix) {
auto & t_clone{Fix::tensor_field.get_zeros_like("tensor clone")};
static_assert(std::is_same<std::remove_reference_t<decltype(t_clone)>,
typename Fix::TField_t>::value,
"wrong overloaded function");
auto & m_clone{Fix::matrix_field.get_zeros_like("matrix clone")};
static_assert(std::is_same<std::remove_reference_t<decltype(m_clone)>,
typename Fix::MField_t>::value,
"wrong overloaded function");
using FieldColl_t = typename Fix::FieldColl_t;
using T = typename Fix::TField_t::Scalar;
TypedField<FieldColl_t, T> & t_ref{t_clone};
auto & typed_clone{t_ref.get_zeros_like("dynamically sized clone")};
static_assert(std::is_same<std::remove_reference_t<decltype(typed_clone)>,
TypedField<FieldColl_t, T>>::value,
"Field type incorrectly deduced");
BOOST_CHECK_EQUAL(typed_clone.get_nb_components(),
t_clone.get_nb_components());
auto & dyn_clone{Fix::dynamic_field1.get_zeros_like("dynamic clone")};
static_assert(
std::is_same<decltype(dyn_clone), decltype(typed_clone)>::value,
"mismatch");
BOOST_CHECK_EQUAL(typed_clone.get_nb_components(),
dyn_clone.get_nb_components());
}
/* ---------------------------------------------------------------------- */
BOOST_AUTO_TEST_CASE(fill_global_local) {
FieldFixture<true> global;
FieldFixture<false> local;
constexpr Dim_t len{2};
constexpr auto sizes{CcoordOps::get_cube<FieldFixture<true>::SDim>(len)};
global.fc.initialise(sizes, {});
local.fc.add_pixel({1, 1});
local.fc.add_pixel({0, 1});
local.fc.initialise();
// fill the local matrix field and then transfer it to the global field
for (auto mat : local.matrix_field.get_map()) {
mat.setRandom();
}
global.matrix_field.fill_from_local(local.matrix_field);
for (const auto & ccoord : local.fc) {
const auto & a{local.matrix_field.get_map()[ccoord]};
const auto & b{global.matrix_field.get_map()[ccoord]};
const Real error{(a - b).norm()};
BOOST_CHECK_EQUAL(error, 0.);
}
// fill the global tensor field and then transfer it to the global field
for (auto mat : global.tensor_field.get_map()) {
mat.setRandom();
}
local.tensor_field.fill_from_global(global.tensor_field);
for (const auto & ccoord : local.fc) {
const auto & a{local.matrix_field.get_map()[ccoord]};
const auto & b{global.matrix_field.get_map()[ccoord]};
const Real error{(a - b).norm()};
BOOST_CHECK_EQUAL(error, 0.);
}
BOOST_CHECK_THROW(local.tensor_field.fill_from_global(global.matrix_field),
std::runtime_error);
BOOST_CHECK_THROW(global.tensor_field.fill_from_local(local.matrix_field),
std::runtime_error);
}
BOOST_AUTO_TEST_SUITE_END();
} // namespace muGrid
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