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/*
* This file is a part of TiledArray.
* Copyright (C) 2015 Virginia Tech
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* justus
* Department of Chemistry, Virginia Tech
*
* tensor_shift_wrapper.cpp
* Jun 2, 2015
*
*/
#include "TiledArray/tensor/shift_wrapper.h"
#include "tiledarray.h"
#include "unit_test_config.h"
#include <chrono>
#include <random>
using TiledArray::Tensor;
using TiledArray::TensorView;
using TiledArray::TensorConstView;
using TiledArray::Range;
using TiledArray::BlockRange;
using TiledArray::detail::ShiftWrapper;
using TiledArray::shift;
struct ShiftWrapperFixture {
ShiftWrapperFixture() { }
~ShiftWrapperFixture() { }
static Tensor<int> random_tensor(const Range& range) {
Tensor<int> result(range);
std::default_random_engine generator(
std::chrono::system_clock::now().time_since_epoch().count());
std::uniform_int_distribution<int> distribution(0,100);
for(auto& value : result)
value = distribution(generator);
return result;
}
std::array<int, 3> lower_bound{{0,1,2}};
std::array<int, 3> upper_bound{{5,7,11}};
std::array<int, 3> shifted_lower_bound{{4,5,6}};
std::array<int, 3> shifted_upper_bound{{9,11,15}};
Tensor<int> t1{random_tensor(Range(lower_bound, upper_bound))};
Tensor<int> t2{random_tensor(Range(shifted_lower_bound, shifted_upper_bound))};
}; // ShiftWrapperFixture
BOOST_FIXTURE_TEST_SUITE( tensor_shift_wrapper_suite, ShiftWrapperFixture )
BOOST_AUTO_TEST_CASE( constructor )
{
BOOST_CHECK_NO_THROW(shift(t1));
auto s = shift(t1);
BOOST_CHECK_EQUAL(& s.get(), &t1);
BOOST_CHECK_EQUAL(s.data(), t1.data());
BOOST_CHECK_EQUAL(s.range(), t1.range());
}
BOOST_AUTO_TEST_CASE( shift_assignment_lhs )
{
BOOST_CHECK_NO_THROW(shift(t1) = t2);
BOOST_CHECK_NE(t1.data(), t2.data());
for(std::size_t i = 0ul; i < t1.size(); ++i)
BOOST_CHECK_EQUAL(t1[i], t2[i]);
}
BOOST_AUTO_TEST_CASE( shift_assignment_rhs )
{
BOOST_CHECK_NO_THROW(t1 = shift(t2));
BOOST_CHECK_NE(t1.data(), t2.data());
for(std::size_t i = 0ul; i < t1.size(); ++i)
BOOST_CHECK_EQUAL(t1[i], t2[i]);
}
BOOST_AUTO_TEST_SUITE_END()
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