xtensor/test/test_xoptional_assembly.cpp at master · xtensor-stack/xtensor · GitHub

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/***************************************************************************

* Copyright (c) Johan Mabille, Sylvain Corlay and Wolf Vollprecht *

* Copyright (c) QuantStack *

* *

* Distributed under the terms of the BSD 3-Clause License. *

* *

* The full license is in the file LICENSE, distributed with this software. *

****************************************************************************/

#include "xtensor/containers/xarray.hpp"

#include "xtensor/io/xio.hpp"

#include "xtensor/optional/xoptional_assembly.hpp"

#include "test_common.hpp"

#include "test_common_macros.hpp"

namespace xt

{

using array_type = xarray<int>;

using flag_array_type = xarray<bool>;

using opt_ass_type = xoptional_assembly<array_type, flag_array_type>;

using cm_opt_ass_type = xoptional_assembly<

xarray<int, layout_type::column_major>,

xarray<bool, layout_type::column_major>>;

using dyn_opt_ass_type = xoptional_assembly<xarray<int, layout_type::dynamic>, xarray<bool, layout_type::dynamic>>;

TEST(xoptional_assembly, shaped_constructor)

{

SUBCASE("row_major constructor")

{

row_major_result<> rm;

dyn_opt_ass_type ra(rm.m_shape, layout_type::row_major);

compare_shape(ra, rm);

}

SUBCASE("column_major constructor")

{

column_major_result<> cm;

cm_opt_ass_type ca(cm.m_shape);

compare_shape(ca, cm);

}

SUBCASE("from shape")

{

std::array<std::size_t, 3> shp = {5, 4, 2};

std::vector<std::size_t> shp_as_vec = {5, 4, 2};

auto ca = cm_opt_ass_type::from_shape({3, 2, 1});

auto cb = cm_opt_ass_type::from_shape(shp);

std::vector<std::size_t> expected_shape = {3, 2, 1};

EXPECT_EQ(expected_shape, ca.shape());

EXPECT_EQ(shp_as_vec, cb.shape());

}

TEST(xoptional_assembly, strided_constructor)

{

central_major_result<> cmr;

dyn_opt_ass_type cma(cmr.m_shape, cmr.m_strides);

compare_shape(cma, cmr);

}

TEST(xoptional_assembly, valued_constructor)

{

SUBCASE("row_major valued constructor")

{

row_major_result<> rm;

int value = 2;

dyn_opt_ass_type ra(rm.m_shape, value, layout_type::row_major);

compare_shape(ra, rm);

dyn_opt_ass_type::raw_value_expression::storage_type vec(ra.size(), value);

EXPECT_EQ(ra.value().storage(), vec);

}

SUBCASE("column_major valued constructor")

{

column_major_result<> cm;

int value = 2;

cm_opt_ass_type ca(cm.m_shape, value);

compare_shape(ca, cm);

cm_opt_ass_type::raw_value_expression::storage_type vec(ca.size(), value);

EXPECT_EQ(ca.value().storage(), vec);

}

TEST(xoptional_assembly, strided_valued_constructor)

{

central_major_result<> cmr;

int value = 2;

dyn_opt_ass_type cma(cmr.m_shape, cmr.m_strides, value);

compare_shape(cma, cmr);

dyn_opt_ass_type::raw_value_expression::storage_type vec(cma.size(), value);

EXPECT_EQ(cma.value().storage(), vec);

}

TEST(xoptional_assembly, xscalar_constructor)

{

xscalar<int> xs(2);

opt_ass_type a(xs);

EXPECT_EQ(a(), xs());

}

TEST(xoptional_assembly, initializer_list)

{

using opt = xtl::xoptional<int>;

opt_ass_type a0(opt(1));

opt_ass_type a1({opt(1), opt(2, false)});

opt_ass_type a2({{opt(1, true), opt(2, false)}, {opt(2), opt(4, true)}, {opt(5), opt(6)}});

EXPECT_EQ(opt(1, true), a0());

EXPECT_EQ(opt(2, false), a1(1));

EXPECT_EQ(opt(4), a2(1, 1));

}

TEST(xoptional_assembly, expression_constructor)

{

using opt = xtl::xoptional<int>;

array_type value = {{1, 2}, {3, 4}};

flag_array_type flag = {{true, false}, {false, true}};

opt_ass_type a(std::move(value), flag);

EXPECT_EQ(a(0, 0), opt(1, true));

EXPECT_EQ(a(0, 1), opt(2, false));

EXPECT_EQ(a(1, 0), opt(3, false));

EXPECT_EQ(a(1, 1), opt(4, true));

opt_ass_type a2(a.value());

EXPECT_EQ(a2(0, 0), opt(1, true));

EXPECT_EQ(a2(0, 1), opt(2, true));

EXPECT_EQ(a2(1, 0), opt(3, true));

EXPECT_EQ(a2(1, 1), opt(4, true));

array_type value2 = {{1, 2}, {3, 4}};

opt_ass_type a3(std::move(value2));

EXPECT_EQ(a3(0, 0), opt(1, true));

EXPECT_EQ(a3(0, 1), opt(2, true));

EXPECT_EQ(a3(1, 0), opt(3, true));

EXPECT_EQ(a3(1, 1), opt(4, true));

}

TEST(xoptional_assembly, copy_semantic)

{

central_major_result<> res;

int value = 2;

dyn_opt_ass_type a(res.m_shape, res.m_strides, value);

SUBCASE("copy constructor")

{

dyn_opt_ass_type b(a);

compare_shape(a, b);

EXPECT_EQ(a.storage(), b.storage());

}

SUBCASE("assignment operator")

{

row_major_result<> r;

dyn_opt_ass_type c(r.m_shape, dyn_opt_ass_type::value_type(0, false));

EXPECT_NE(a.storage(), c.storage());

c = a;

compare_shape(a, c);

EXPECT_EQ(a.storage(), c.storage());

}

TEST(xoptional_assembly, move_semantic)

{

central_major_result<> res;

int value = 2;

dyn_opt_ass_type a(res.m_shape, res.m_strides, value);

SUBCASE("move constructor")

{

dyn_opt_ass_type tmp(a);

dyn_opt_ass_type b(std::move(tmp));

compare_shape(a, b);

EXPECT_EQ(a.storage(), b.storage());

}

SUBCASE("move assignment")

{

row_major_result<> r;

dyn_opt_ass_type c(r.m_shape, dyn_opt_ass_type::value_type(0, false));

EXPECT_NE(a.value().storage(), c.value().storage());

EXPECT_NE(a.has_value().storage(), c.has_value().storage());

dyn_opt_ass_type tmp(a);

c = std::move(tmp);

compare_shape(a, c);

EXPECT_EQ(a.storage(), c.storage());

}

TEST(xoptional_assembly, resize)

{

dyn_opt_ass_type a;

test_resize(a);

}

TEST(xoptional_assembly, reshape)

{

dyn_opt_ass_type a;

test_reshape(a);

}

TEST(xoptional_assembly, access)

{

using opt = xtl::xoptional<int>;

opt_ass_type a = {{opt(1), opt(2, false)}, {opt(3, false), opt(4)}};

EXPECT_EQ(a(0, 0), opt(1, true));

EXPECT_EQ(a(0, 1), opt(2, false));

EXPECT_EQ(a(1, 0), opt(3, false));

EXPECT_EQ(a(1, 1), opt(4, true));

}

TEST(xoptional_assembly, fill)

{

using opt = xtl::xoptional<int>;

opt_ass_type a = {{opt(1), opt(2, false)}, {opt(3, false), opt(4)}};

a.fill(opt(5, false));

EXPECT_EQ(a(0, 0), opt(5, false));

EXPECT_EQ(a(0, 1), opt(5, false));

EXPECT_EQ(a(1, 0), opt(5, false));

EXPECT_EQ(a(1, 1), opt(5, false));

a.fill(3);

EXPECT_EQ(a(0, 0), opt(3, true));

EXPECT_EQ(a(0, 1), opt(3, true));

EXPECT_EQ(a(1, 0), opt(3, true));

EXPECT_EQ(a(1, 1), opt(3, true));

}

TEST(xoptional_assembly, unchecked)

{

using opt = xtl::xoptional<int>;

opt_ass_type a = {{opt(1), opt(2, false)}, {opt(3, false), opt(4)}};

EXPECT_EQ(a.unchecked(0, 0), opt(1, true));

EXPECT_EQ(a.unchecked(0, 1), opt(2, false));

EXPECT_EQ(a.unchecked(1, 0), opt(3, false));

EXPECT_EQ(a.unchecked(1, 1), opt(4, true));

}

TEST(xoptional_assembly, at)

{

using opt = xtl::xoptional<int>;

opt_ass_type a = {{opt(1), opt(2, false)}, {opt(3, false), opt(4)}};

EXPECT_EQ(a.at(0, 0), opt(1, true));

EXPECT_EQ(a.at(0, 1), opt(2, false));

EXPECT_EQ(a.at(1, 0), opt(3, false));

EXPECT_EQ(a.at(1, 1), opt(4, true));

XT_EXPECT_ANY_THROW(a.at(2, 2));

}

TEST(xoptional_assembly, element)

{

using opt = xtl::xoptional<int>;

opt_ass_type a = {{opt(1), opt(2, false)}, {opt(3, false), opt(4)}};

std::vector<std::size_t> v0({0, 0}), v1({0, 1}), v2({1, 0}), v3({1, 1});

EXPECT_EQ(a.element(v0.begin(), v0.end()), opt(1, true));

EXPECT_EQ(a.element(v1.begin(), v1.end()), opt(2, false));

EXPECT_EQ(a.element(v2.begin(), v2.end()), opt(3, false));

EXPECT_EQ(a.element(v3.begin(), v3.end()), opt(4, true));

}

TEST(xoptional_assembly, indexed_access)

{

using opt = xtl::xoptional<int>;

opt_ass_type a = {{opt(1), opt(2, false)}, {opt(3, false), opt(4)}};

xindex i0({0, 0}), i1({0, 1}), i2({1, 0}), i3({1, 1});

EXPECT_EQ(a[i0], opt(1, true));

EXPECT_EQ((a[{0, 0}]), opt(1, true));

EXPECT_EQ(a[i1], opt(2, false));

EXPECT_EQ((a[{0, 1}]), opt(2, false));

EXPECT_EQ(a[i2], opt(3, false));

EXPECT_EQ((a[{1, 0}]), opt(3, false));

EXPECT_EQ(a[i3], opt(4, true));

EXPECT_EQ((a[{1, 1}]), opt(4, true));

}

TEST(xoptional_assembly, broadcast_shape)

{

using shape_type = typename opt_ass_type::shape_type;

shape_type s = {3, 1, 4, 2};

opt_ass_type vec(s);

SUBCASE("same shape")

{

shape_type s1 = s;

bool res = vec.broadcast_shape(s1);

EXPECT_EQ(s1, s);

EXPECT_TRUE(res);

}

SUBCASE("different shape")

{

shape_type s2 = {3, 5, 1, 2};

shape_type s2r = {3, 5, 4, 2};

bool res = vec.broadcast_shape(s2);

EXPECT_EQ(s2, s2r);

EXPECT_FALSE(res);

}

SUBCASE("incompatible shapes")

{

shape_type s4 = {2, 1, 3, 2};

XT_EXPECT_THROW(vec.broadcast_shape(s4), broadcast_error);

}

{

shape_type s2 = {3, 1, 4, 2};

SUBCASE("different dimensions")

vec.resize(s2);

shape_type s3 = {5, 3, 1, 4, 2};

shape_type s3r = s3;

bool res = vec.broadcast_shape(s3);

EXPECT_EQ(s3, s3r);

EXPECT_FALSE(res);

}

TEST(xoptional_assembly, iterator)

{

using opt = xtl::xoptional<int>;

std::vector<opt> vec = {opt(1), opt(2, false), opt(3, false), opt(4)};

SUBCASE("row_major storage iterator")

{

opt_ass_type rma(opt_ass_type::shape_type({2, 2}));

std::copy(vec.cbegin(), vec.cend(), rma.begin<layout_type::row_major>());

EXPECT_EQ(vec[0], rma(0, 0));

EXPECT_EQ(vec[1], rma(0, 1));

EXPECT_EQ(vec[2], rma(1, 0));

EXPECT_EQ(vec[3], rma(1, 1));

EXPECT_EQ(

vec.size(),

std::size_t(std::distance(rma.begin<layout_type::row_major>(), rma.end<layout_type::row_major>()))

);

}

SUBCASE("column_major storage iterator")

{

cm_opt_ass_type cma(opt_ass_type::shape_type({2, 2}));

std::copy(vec.cbegin(), vec.cend(), cma.begin<layout_type::column_major>());

EXPECT_EQ(vec[0], cma(0, 0));

EXPECT_EQ(vec[1], cma(1, 0));

EXPECT_EQ(vec[2], cma(0, 1));

EXPECT_EQ(vec[3], cma(1, 1));

EXPECT_EQ(

vec.size(),

std::size_t(

std::distance(cma.begin<layout_type::column_major>(), cma.end<layout_type::column_major>())

)

);

}

TEST(xoptional_assembly, xiterator)

{

row_major_result<> rm;

dyn_opt_ass_type vec;

vec.resize(rm.m_shape, layout_type::row_major);

vec.fill(123);

vec(1, 1, 0) = rm.m_assigner[1][1][0];

vec.value()[0] = 4;

size_t nb_iter = vec.size() / 2;

using shape_type = std::vector<size_t>;

// broadcast_iterator

{

auto iter = vec.begin<layout_type::row_major>();

auto iter_end = vec.end<layout_type::row_major>();

for (size_t i = 0; i < nb_iter; ++i)

{

++iter;

}

EXPECT_EQ(vec.value().storage()[nb_iter], *iter);

for (size_t i = 0; i < nb_iter; ++i)

{

++iter;

}

EXPECT_EQ(iter, iter_end);

}

// shaped_xiterator

{

shape_type shape(rm.m_shape.size() + 1);

std::copy(rm.m_shape.begin(), rm.m_shape.end(), shape.begin() + 1);

shape[0] = 2;

auto iter = vec.begin<layout_type::row_major>(shape);

auto iter_end = vec.end<layout_type::row_major>(shape);

for (size_t i = 0; i < 2 * nb_iter; ++i)

{

++iter;

}

EXPECT_EQ(vec(0, 0), *iter);

for (size_t i = 0; i < 2 * nb_iter; ++i)

{

++iter;

}

EXPECT_EQ(iter, iter_end);

}

// column broadcast_iterator

{

auto iter = vec.begin<layout_type::column_major>();

auto iter_end = vec.end<layout_type::column_major>();

for (size_t i = 0; i < nb_iter; ++i)

{

++iter;

}

EXPECT_EQ(vec(0, 0, 2), *iter);

for (size_t i = 0; i < nb_iter; ++i)

{

++iter;

}

EXPECT_EQ(iter, iter_end);

}

// column shaped_xiterator

{

shape_type shape(rm.m_shape.size() + 1);

std::copy(rm.m_shape.begin(), rm.m_shape.end(), shape.begin() + 1);

shape[0] = 2;

auto iter = vec.begin<layout_type::column_major>(shape);

auto iter_end = vec.end<layout_type::column_major>(shape);

for (size_t i = 0; i < 2 * nb_iter; ++i)

{

++iter;

}

EXPECT_EQ(vec(0, 0, 2), *iter);

for (size_t i = 0; i < 2 * nb_iter; ++i)

{

++iter;

}

EXPECT_EQ(iter, iter_end);

}

TEST(xoptional_assembly, reverse_xiterator)

{

row_major_result<> rm;

dyn_opt_ass_type vec;

vec.resize(rm.m_shape, layout_type::row_major);

vec(1, 0, 3) = rm.m_assigner[1][0][3];

vec(2, 1, 3) = 2;

size_t nb_iter = vec.size() / 2;

using shape_type = std::vector<size_t>;

// broadcast_iterator

{

auto iter = vec.rbegin<layout_type::row_major>();

auto iter_end = vec.rend<layout_type::row_major>();

for (size_t i = 0; i < nb_iter; ++i)

{

++iter;

}

EXPECT_EQ(vec.value().storage()[nb_iter - 1], *iter);

for (size_t i = 0; i < nb_iter; ++i)

{

++iter;

}

EXPECT_EQ(iter, iter_end);

}

// shaped_xiterator

{

shape_type shape(rm.m_shape.size() + 1);

std::copy(rm.m_shape.begin(), rm.m_shape.end(), shape.begin() + 1);

shape[0] = 2;

auto iter = vec.rbegin<layout_type::row_major>(shape);

auto iter_end = vec.rend<layout_type::row_major>(shape);

for (size_t i = 0; i < 2 * nb_iter; ++i)

{

++iter;

}

EXPECT_EQ(vec.value().storage()[2 * nb_iter - 1], *iter);

for (size_t i = 0; i < 2 * nb_iter; ++i)

{

++iter;

}

EXPECT_EQ(iter, iter_end);

}

TEST(xoptional_assembly, semantic)

{

using opt = xtl::xoptional<int>;

dyn_opt_ass_type a = {{opt(1), opt(2, false)}, {opt(3, false), opt(4)}};

dyn_opt_ass_type b(a);

dyn_opt_ass_type c = a + b;

EXPECT_EQ(c(0, 0), a(0, 0) + b(0, 0));

EXPECT_EQ(c(0, 1), a(0, 1) + b(0, 1));

EXPECT_EQ(c(1, 0), a(1, 0) + b(1, 0));

EXPECT_EQ(c(1, 1), a(1, 1) + b(1, 1));

dyn_opt_ass_type d(a);

d += b;

EXPECT_EQ(d(0, 0), a(0, 0) + b(0, 0));

EXPECT_EQ(d(0, 1), a(0, 1) + b(0, 1));

EXPECT_EQ(d(1, 0), a(1, 0) + b(1, 0));

EXPECT_EQ(d(1, 1), a(1, 1) + b(1, 1));

}

TEST(xoptional_assembly, mixed_semantic)

{

using d_opt_ass_type = xoptional_assembly<

xarray<double, layout_type::row_major>,

xarray<bool, layout_type::row_major>>;

using opt = xtl::xoptional<double>;

d_opt_ass_type a = {

{opt(1.), opt(2., false), opt(3., false), opt(4.)},

{opt(5., false), opt(6.), opt(7.), opt(8., false)}

};

xarray_optional<double> b = {

{opt(1.), opt(2.), opt(3., false), opt(4., false)},

{opt(5., false), opt(6.), opt(7.), opt(8.)}

};

d_opt_ass_type res = a + b;

EXPECT_EQ(res(0, 0), opt(2.));

EXPECT_EQ(res(0, 1), opt(4., false));

EXPECT_EQ(res(0, 2), opt(6., false));

EXPECT_EQ(res(0, 3), opt(8., false));

EXPECT_EQ(res(1, 0), opt(10., false));

EXPECT_EQ(res(1, 1), opt(12.));

EXPECT_EQ(res(1, 2), opt(14.));

EXPECT_EQ(res(1, 3), opt(16., false));

}

TEST(xoptional_assembly, mixed_expression)

{

using opt = xtl::xoptional<int>;

dyn_opt_ass_type a = {

{opt(1), opt(2, false), opt(3, false), opt(4)},

{opt(5, false), opt(6), opt(7), opt(8, false)}

};

xarray<int> b = {{1, 2, 3, 4}, {5, 6, 7, 8}};

dyn_opt_ass_type c = a + b;

dyn_opt_ass_type res = {

{opt(2), opt(4, false), opt(6, false), opt(8)},

{opt(10, false), opt(12), opt(14), opt(16, false)}

};

EXPECT_EQ(res, c);

dyn_opt_ass_type d = 2 * a;

EXPECT_EQ(res, d);

opt e = opt(2, true);

dyn_opt_ass_type f = e * a;

EXPECT_EQ(res, f);

dyn_opt_ass_type g = opt(2, true) * a;

EXPECT_EQ(res, f);

}

xtensor/test/test_xoptional_assembly.cpp at master · xtensor-stack/xtensor · GitHub

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