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

#include "xtensor/containers/xarray.hpp"
#include "xtensor/containers/xtensor.hpp"
#include "xtensor/core/xexpression.hpp"
#include "xtensor/core/xmath.hpp"
#include "xtensor/generators/xrandom.hpp"
#include "xtensor/io/xio.hpp"

#include "test_common_macros.hpp"

namespace xt
{
    auto fun()
    {
        auto sa = make_xshared(xarray({{1, 2, 3, 4}, {5, 6, 7, 8}}));
        return sa + sa * sa - sa;
    }

    TEST(xexpression, shared_basic)
    {
        xarray a = {{1, 2, 3, 4}, {5, 6, 7, 8}};
        xarray ca = {{1, 2, 3, 4}, {5, 6, 7, 8}};

        auto sa = make_xshared(std::move(a));

        EXPECT_EQ(sa.dimension(), std::size_t(2));
        EXPECT_EQ(sa.shape(), ca.shape());
        EXPECT_EQ(sa.strides(), ca.strides());
        EXPECT_EQ(sa(1, 3), ca(1, 3));
        EXPECT_EQ(sa.storage(), ca.storage());
        EXPECT_EQ(sa.data_offset(), ca.data_offset());
        EXPECT_EQ(sa.data()[0], ca.data()[0]);
        layout_type L = decltype(sa)::static_layout;
        bool contig = decltype(sa)::contiguous_layout;
        EXPECT_EQ(L, XTENSOR_DEFAULT_LAYOUT);
        EXPECT_EQ(contig, true);

        EXPECT_EQ(sa.use_count(), 2);
        auto cpysa = sa;
        EXPECT_EQ(sa.use_count(), 3);

        std::stringstream buffer;
        buffer