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test_xpad.cpp
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test_xpad.cpp
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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 <complex>
#include <limits>
#include "gtest/gtest.h"
#include "xtensor/xpad.hpp"
#include "xtensor/xio.hpp"
namespace xt
{
TEST(xpad, constant_a)
{
xt::xtensor<size_t, 2> a = {{0, 1, 2},
{3, 4, 5}};
xt::xtensor<size_t, 2> b = {{0, 0, 0, 0, 0, 0, 0, 0, 0},
{0, 0, 0, 0, 0, 0, 0, 0, 0},
{0, 0, 0, 0, 1, 2, 0, 0, 0},
{0, 0, 0, 3, 4, 5, 0, 0, 0},
{0, 0, 0, 0, 0, 0, 0, 0, 0},
{0, 0, 0, 0, 0, 0, 0, 0, 0}};
xt::xtensor<size_t, 2> c = xt::pad(a, {{2,2}, {3,3}}, xt::pad_mode::constant);
EXPECT_EQ(b, c);
}
TEST(xpad, constant_b)
{
xt::xtensor<size_t, 2> a = {{0, 1, 2},
{3, 4, 5}};
xt::xtensor<size_t, 2> b = {{0, 1, 2},
{3, 4, 5}};
xt::xtensor<size_t, 2> c = xt::pad(a, 0, xt::pad_mode::constant);
EXPECT_EQ(b, c);
}
TEST(xpad, constant_c)
{
xt::xtensor<size_t, 2> a = {{0, 1, 2},
{3, 4, 5}};
xt::xtensor<size_t, 2> b = {{0, 1, 2, 0, 0},
{3, 4, 5, 0, 0},
{0, 0, 0, 0, 0}};
xt::xtensor<size_t, 2> c = xt::pad(a, {{0,1}, {0,2}}, xt::pad_mode::constant);
EXPECT_EQ(b, c);
}
TEST(xpad, constant_d)
{
xt::xtensor<size_t, 2> a = {{0, 1, 2},
{3, 4, 5}};
xt::xtensor<size_t, 2> b = {{0, 0, 0, 0, 0},
{0, 0, 0, 1, 2},
{0, 0, 3, 4, 5}};
xt::xtensor<size_t, 2> c = xt::pad(a, {{1,0}, {2,0}}, xt::pad_mode::constant);
EXPECT_EQ(b, c);
}
TEST(xpad, wrap_a)
{
xt::xtensor<size_t, 2> a = {{0, 1, 2},
{3, 4, 5}};
xt::xtensor<size_t, 2> b = {{0, 1, 2, 0, 1, 2, 0, 1, 2},
{3, 4, 5, 3, 4, 5, 3, 4, 5},
{0, 1, 2, 0, 1, 2, 0, 1, 2},
{3, 4, 5, 3, 4, 5, 3, 4, 5},
{0, 1, 2, 0, 1, 2, 0, 1, 2},
{3, 4, 5, 3, 4, 5, 3, 4, 5}};
xt::xtensor<size_t, 2> c = xt::pad(a, {{2,2}, {3,3}}, xt::pad_mode::wrap);
EXPECT_EQ(b, c);
}
TEST(xpad, wrap_b)
{
xt::xtensor<size_t, 2> a = {{0, 1, 2},
{3, 4, 5}};
xt::xtensor<size_t, 2> b = {{0, 1, 2},
{3, 4, 5}};
xt::xtensor<size_t, 2> c = xt::pad(a, 0, xt::pad_mode::wrap);
EXPECT_EQ(b, c);
}
TEST(xpad, wrap_c)
{
xt::xtensor<size_t, 2> a = {{0, 1, 2},
{3, 4, 5}};
xt::xtensor<size_t, 2> b = {{0, 1, 2, 0, 1},
{3, 4, 5, 3, 4},
{0, 1, 2, 0, 1}};
xt::xtensor<size_t, 2> c = xt::pad(a, {{0,1}, {0,2}}, xt::pad_mode::wrap);
EXPECT_EQ(b, c);
}
TEST(xpad, wrap_d)
{
xt::xtensor<size_t, 2> a = {{0, 1, 2},
{3, 4, 5}};
xt::xtensor<size_t, 2> b = {{4, 5, 3, 4, 5},
{1, 2, 0, 1, 2},
{4, 5, 3, 4, 5}};
xt::xtensor<size_t, 2> c = xt::pad(a, {{1,0}, {2,0}}, xt::pad_mode::wrap);
EXPECT_EQ(b, c);
}
TEST(xpad, symmetric_a)
{
xt::xtensor<size_t, 2> a = {{0, 1, 2},
{3, 4, 5}};
xt::xtensor<size_t, 2> b = {{5, 4, 3, 3, 4, 5, 5, 4, 3},
{2, 1, 0, 0, 1, 2, 2, 1, 0},
{2, 1, 0, 0, 1, 2, 2, 1, 0},
{5, 4, 3, 3, 4, 5, 5, 4, 3},
{5, 4, 3, 3, 4, 5, 5, 4, 3},
{2, 1, 0, 0, 1, 2, 2, 1, 0}};
xt::xtensor<size_t, 2> c = xt::pad(a, {{2,2}, {3,3}}, xt::pad_mode::symmetric);
EXPECT_EQ(b, c);
}
TEST(xpad, symmetric_b)
{
xt::xtensor<size_t, 2> a = {{0, 1, 2},
{3, 4, 5}};
xt::xtensor<size_t, 2> b = {{0, 1, 2},
{3, 4, 5}};
xt::xtensor<size_t, 2> c = xt::pad(a, 0, xt::pad_mode::symmetric);
EXPECT_EQ(b, c);
}
TEST(xpad, symmetric_c)
{
xt::xtensor<size_t, 2> a = {{0, 1, 2},
{3, 4, 5}};
xt::xtensor<size_t, 2> b = {{0, 1, 2, 2, 1},
{3, 4, 5, 5, 4},
{3, 4, 5, 5, 4}};
xt::xtensor<size_t, 2> c = xt::pad(a, {{0,1}, {0,2}}, xt::pad_mode::symmetric);
EXPECT_EQ(b, c);
}
TEST(xpad, symmetric_d)
{
xt::xtensor<size_t, 2> a = {{0, 1, 2},
{3, 4, 5}};
xt::xtensor<size_t, 2> b = {{1, 0, 0, 1, 2},
{1, 0, 0, 1, 2},
{4, 3, 3, 4, 5}};
xt::xtensor<size_t, 2> c = xt::pad(a, {{1,0}, {2,0}}, xt::pad_mode::symmetric);
EXPECT_EQ(b, c);
}
TEST(xpad, reflect_a)
{
xt::xtensor<size_t, 2> a = {{0, 1, 2},
{3, 4, 5}};
xt::xtensor<size_t, 2> b = {{5, 4, 3, 4, 5, 4, 3},
{2, 1, 0, 1, 2, 1, 0},
{5, 4, 3, 4, 5, 4, 3},
{2, 1, 0, 1, 2, 1, 0}};
xt::xtensor<size_t, 2> c = xt::pad(a, {{1,1}, {2,2}}, xt::pad_mode::reflect);
EXPECT_EQ(b, c);
}
TEST(xpad, reflect_b)
{
xt::xtensor<size_t, 2> a = {{0, 1, 2},
{3, 4, 5}};
xt::xtensor<size_t, 2> b = {{0, 1, 2},
{3, 4, 5}};
xt::xtensor<size_t, 2> c = xt::pad(a, 0, xt::pad_mode::reflect);
EXPECT_EQ(b, c);
}
TEST(xpad, reflect_c)
{
xt::xtensor<size_t, 2> a = {{0, 1, 2},
{3, 4, 5}};
xt::xtensor<size_t, 2> b = {{0, 1, 2, 1, 0},
{3, 4, 5, 4, 3},
{0, 1, 2, 1, 0}};
xt::xtensor<size_t, 2> c = xt::pad(a, {{0,1}, {0,2}}, xt::pad_mode::reflect);
EXPECT_EQ(b, c);
}
TEST(xpad, reflect_d)
{
xt::xtensor<size_t, 2> a = {{0, 1, 2},
{3, 4, 5}};
xt::xtensor<size_t, 2> b = {{5, 4, 3, 4, 5},
{2, 1, 0, 1, 2},
{5, 4, 3, 4, 5}};
xt::xtensor<size_t, 2> c = xt::pad(a, {{1,0}, {2,0}}, xt::pad_mode::reflect);
EXPECT_EQ(b, c);
}
TEST(xpad, tile_a)
{
xt::xtensor<size_t, 1> a = xt::arange<size_t>(3);
xt::xtensor<size_t, 1> b = {0, 1, 2, 0, 1, 2, 0, 1, 2};
xt::xtensor<size_t, 1> c = xt::tile(a, 3u);
EXPECT_EQ(b, c);
}
TEST(xpad, tile_b)
{
xt::xtensor<size_t, 2> a = xt::arange<size_t>(3 * 2).reshape({3, 2});
xt::xtensor<size_t, 2> b = {{0, 1},
{2, 3},
{4, 5},
{0, 1},
{2, 3},
{4, 5},
{0, 1},
{2, 3},
{4, 5}};
xt::xtensor<size_t, 2> c = xt::tile(a, 3u);
EXPECT_EQ(b, c);
}
TEST(xpad, tile_c)
{
xt::xtensor<size_t, 2> a = xt::arange<size_t>(3 * 2).reshape({3, 2});
xt::xtensor<size_t, 2> b = {{0, 1, 0, 1, 0, 1, 0, 1},
{2, 3, 2, 3, 2, 3, 2, 3},
{4, 5, 4, 5, 4, 5, 4, 5},
{0, 1, 0, 1, 0, 1, 0, 1},
{2, 3, 2, 3, 2, 3, 2, 3},
{4, 5, 4, 5, 4, 5, 4, 5},
{0, 1, 0, 1, 0, 1, 0, 1},
{2, 3, 2, 3, 2, 3, 2, 3},
{4, 5, 4, 5, 4, 5, 4, 5}};
xt::xtensor<size_t, 2> c = xt::tile(a, {3u, 4u});
EXPECT_EQ(b, c);
}
TEST(xpad, tile_d)
{
xt::xtensor<size_t, 2> a = xt::arange<size_t>(3 * 2).reshape({3, 2});
xt::xtensor<size_t, 2> b = {{0, 1, 0, 1, 0, 1, 0, 1},
{2, 3, 2, 3, 2, 3, 2, 3},
{4, 5, 4, 5, 4, 5, 4, 5},
{0, 1, 0, 1, 0, 1, 0, 1},
{2, 3, 2, 3, 2, 3, 2, 3},
{4, 5, 4, 5, 4, 5, 4, 5},
{0, 1, 0, 1, 0, 1, 0, 1},
{2, 3, 2, 3, 2, 3, 2, 3},
{4, 5, 4, 5, 4, 5, 4, 5}};
xt::xtensor<size_t, 2> c = xt::tile(a, std::array<size_t, 2>{{3u, 4u}});
EXPECT_EQ(b, c);
}
TEST(xpad, tile_e)
{
xt::xarray<size_t> a = xt::arange<size_t>(3 * 2).reshape({3, 2});
xt::xtensor<size_t, 2> b = {{0, 1, 0, 1, 0, 1, 0, 1},
{2, 3, 2, 3, 2, 3, 2, 3},
{4, 5, 4, 5, 4, 5, 4, 5},
{0, 1, 0, 1, 0, 1, 0, 1},
{2, 3, 2, 3, 2, 3, 2, 3},
{4, 5, 4, 5, 4, 5, 4, 5},
{0, 1, 0, 1, 0, 1, 0, 1},
{2, 3, 2, 3, 2, 3, 2, 3},
{4, 5, 4, 5, 4, 5, 4, 5}};
xt::xtensor<size_t, 2> c = xt::tile(a, std::vector<size_t>{{3u, 4u}});
EXPECT_EQ(b, c);
}
TEST(xpad, tile_f)
{
xt::xarray<double> m = xt::tile(xt::expand_dims(xt::eye<double>(4), 0), 3u);
xt::xarray<double> expected = {{{1., 0., 0., 0.},
{0., 1., 0., 0.},
{0., 0., 1., 0.},
{0., 0., 0., 1.}},
{{1., 0., 0., 0.},
{0., 1., 0., 0.},
{0., 0., 1., 0.},
{0., 0., 0., 1.}},
{{1., 0., 0., 0.},
{0., 1., 0., 0.},
{0., 0., 1., 0.},
{0., 0., 0., 1.}}};
EXPECT_EQ(m, expected);
}
}